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Dis Connected Architecture

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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">In this article
I demonstration on Dis Connected Architecture.<o:p></o:p></span></span><br />
<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;"><br /></span></span></div>
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<b><u><span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">Agenda :-<o:p></o:p></span></span></u></b></div>
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<span style="font-family: Verdana, sans-serif;">1)   
 difference between Connected Architecture and
Disconnected Architecture<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">2)   
Data
Reader and DataSet.<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">3)   
Feature
of DataSet<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">4)   
Working
with DataSet<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">5)   
Methods
of DataAdapter.<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">6)   
Accessing
Data From DataSet.<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">7)   
DataTable<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">8)   
Referring
to a cell under DataTable.<o:p></o:p></span><br />
<span style="font-family: Verdana, sans-serif;"><br /></span>
<br />
<span style="font-family: Verdana, sans-serif;"><br /></span></div>
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<br /></div>
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<span style="font-family: Verdana, sans-serif;">Lets we start with Details<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;"><span lang="EN-IN"> ADO.NET Provide two different models for
accessing data from Data Source.</span><o:p></o:p></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;"> 1)<b><u>Connection Oriented Architecture :-</u></b>
<o:p></o:p></span></span></div>
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<b><span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">2)Dis-<u>Connection Oriented Architecture :-<o:p></o:p></u></span></span></b></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">1)<b><u>Connection
Oriented Architecture :-</u></b> <o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">                                      In this
case we require a continuous connection with the Data Source for accessing data
in it.<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">                
Here “<b>DataReader” </b> Class is use for holding data on Client
Machines.<o:p></o:p></span></span></div>
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<span style="font-family: Verdana, sans-serif;"><b><span lang="EN-IN">2)<u>Dis-Connection Oriented Architecture :-</u></span></b><span lang="EN-IN"> <o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">                                      In this
case we do not  require a continuous
connection with the Data Source for accessing data .<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">                
Here “<b>DataSet” </b> Class is use for holding data on Client
Machines.<o:p></o:p></span></span></div>
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<span style="font-family: Verdana, sans-serif;"><b><u><span lang="EN-IN">DataSet</span></u></b><b><span lang="EN-IN"> :-<o:p></o:p></span></b></span></div>
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<span style="font-family: Verdana, sans-serif;"><b><span lang="EN-IN">                </span></b><span lang="EN-IN">It is a class present under “<b>System.Data” </b>namespace design for holding and managing data on
client machines apart from DataReader.<o:p></o:p></span></span></div>
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<span style="font-family: Verdana, sans-serif;"><b><span lang="EN-IN"> <u>Features Of DataSet</u>:-</span></b><b><o:p></o:p></b></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">    1)it is also
capable of  holding multiple tables. <o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">   2)it is a
designed Dis-Connected 
architecture,which doesn’t 
require any permanent connection with DataSource for holding data.<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">3)It Provide 
scrollable navigation to data,that allows us to move in any direction.<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">i.e. eighter top to bottom or bottom to top.<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">4)it is updatable i.e . changes can be performed to
data present in it and also send changes back to DB.<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;"> <b><u>Working
With DataSet :- <o:p></o:p></u></b></span></span></div>
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<span style="font-family: Verdana, sans-serif;"><b><u><span lang="EN-IN"> </span></u></b><span lang="EN-IN">                     This class
that is responsible for loading of data into a DataReader from DataSource is
command.<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">        In the same way,DataAdapter is the class used
for Communication between DataSource and DataSet.<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">      Simply<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;"> 
DataReader   < -  Command 
-> DataSource.<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">DataSet         
<->DataAdapter 
<->DataSource.<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">  <o:p></o:p></span></span></div>
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<b><u><span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">Methods of DataAdapter :-<o:p></o:p></span></span></u></b></div>
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<span style="font-family: Verdana, sans-serif;"><b><span lang="EN-IN">1)<span style="font-weight: normal;">    </span></span></b><span lang="EN-IN">Fill(DataSet ds,string TableName).<o:p></o:p></span></span></div>
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<span style="font-family: Verdana, sans-serif;"><b><span lang="EN-IN">2)<span style="font-weight: normal;">    </span></span></b><span lang="EN-IN">Update (DataSet ds,string TableName)<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">   Fill is the
method to Load data from DataSource into DataSet.<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">   Update is to
transfer data from a DataSet to DataSource.<o:p></o:p></span></span></div>
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<b><u><span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">DataAdapter is internally collection of 4 Method:-<o:p></o:p></span></span></u></b></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">1)Select Command.<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">2)Insert Command.<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">3)Update Command.<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">4)Delete Command.<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">      When we
call<b> Fill() </b>method of
Adaper,Following action take place internally.<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">1)Open  a
connection with DataSource.<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">2)Execute the Select  
command under it on the DataSource and loads data from table to DataSet.<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">3)Close the Connection.<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">  As a DataSet
is updatable ,changes can be made to data that is loaded into it like adding
,modifying and deleting records.<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">   After making
all the changes to data in dataset and if we want to send those changes back to
datasource  call <b>Update ( ) </b>method on dataadapter which perform following,<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">1)Re Open a Connection with DataSource.<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">2)Changes that are made in dataset will be sent back
to table where in this process it will make use of insert,update and delete
command of DataAdapter.<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">3)Close the Connection.<o:p></o:p></span></span></div>
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<b><u><span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">Accessing Data From DataSet:-<o:p></o:p></span></span></u></b></div>
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<span style="font-family: Verdana, sans-serif;"><b><u><span lang="EN-IN">           </span></u></b><span lang="EN-IN">               DataReader provides us Pointer
vases access to th data ,so we can get data only in a sequencial order,where as
dataset provides us index based access to data so we can get the data from any
location .<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">                                          
Dataset is a collection of table where each table is the represented as
class datatable and identified by the index position .<o:p></o:p></span></span></div>
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<b><u><span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">DataTable :-<o:p></o:p></span></span></u></b></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">                           <u> </u>Datatable is the collection of tables.<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">Following syntax is used for DataTable<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;"><DataSet>.Tables[Index]/[Name]<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">            Eg<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">Ds.Tables[0]<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">            Or<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">Ds.tables[“Company”]<o:p></o:p></span></span></div>
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<br /></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">Every DataTable is again Collection of Rows and
Columns  where each row is represented as
a class DataRow and identified by its index position.<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">     Each column
is represented as class DataColumn and identified  by  it
index position or Name.<o:p></o:p></span></span></div>
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<b><u><span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">DataRow:<o:p></o:p></span></span></u></b></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">   It is
collection rows .<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">Syntax:<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;"><datatable>.Rows[Index].<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">Eg.<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">Ds.tables[0].rows[0]<o:p></o:p></span></span></div>
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<b><u><span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">DataColumns:<o:p></o:p></span></span></u></b></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">   It is
collection Coumns .<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">Syntax:<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;"><datatable>.Columns[Index] <b>OR  </b>columns[Name]<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">Eg.<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">Ds.Tables[0].Column[0]<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">            OR<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">Ds.Tables[0].Column[“ENO”]<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">Ds.tables[0].rows[0]<o:p></o:p></span></span></div>
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<b><u><span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">Referring to a Cell under Data Table:<o:p></o:p></span></span></u></b></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">Syntax:<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;"><datatable>.Rows[row] <b>[</b>col]<o:p></o:p></span></span></div>
<div class="MsoNormal">
<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">Eg.<o:p></o:p></span></span></div>
<div class="MsoNormal">
<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">Ds.Tables[0].Rows[0][0]<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">            OR<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">Ds.Tables[0].Rows[0][“ENO”]<o:p></o:p></span></span></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">Ds.tables[0].rows[0]<o:p></o:p></span></span></div>
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<br /></div>
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<br /></div>
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<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">For more artical visit my blog<o:p></o:p></span></span></div>
<br />
<div class="MsoNormal">
<span lang="EN-IN"><span style="font-family: Verdana, sans-serif;">http://dotnetbyabhipatil.blogspot.in</span><span style="font-family: Times New Roman, serif; font-size: 14pt;"><o:p></o:p></span></span></div>
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Dis Connected Architecture

In this article I demonstration on Dis Connected Architecture. Agenda :- 1) difference between Connected Architecture and Disco...

Abstract Class in C#? example

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<b><i><span style="color: #0070c0; font-size: 22.0pt; line-height: 115%;">                </span></i></b><span style="color: #0070c0;"><span style="font-size: 29px; line-height: 33.733333587646484px;"><b><i><u>Abstract Class in C#? example</u></i></b></span></span><b><i><span style="color: #0070c0; font-size: 22.0pt; line-height: 115%;"><u> </u>  </span></i></b></div>
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<b><i><span style="color: #0070c0; font-size: 22.0pt; line-height: 115%;"> </span></i></b><i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;"> “An abstract is implement that the class is
incomplete and can’t be use directly, to use an abstract class other class can
derived.”<o:p></o:p></span></i></div>
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<i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;">“An abstract class
contains abstract method which can be implemented by the…<o:p></o:p></span></i></div>
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<span style="color: #0070c0; font-family: Wingdings; font-size: 14.0pt; line-height: 115%; mso-bidi-font-family: Wingdings; mso-fareast-font-family: Wingdings;">v<span style="font-family: 'Times New Roman'; font-size: 7pt; line-height: normal;"> </span></span><i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;">You can’t create instance of a abstract class.<o:p></o:p></span></i></div>
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<span style="color: #0070c0; font-family: Wingdings; font-size: 14.0pt; line-height: 115%; mso-bidi-font-family: Wingdings; mso-fareast-font-family: Wingdings;">v<span style="font-family: 'Times New Roman'; font-size: 7pt; line-height: normal;"> </span></span><i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;">You can’t override the method of the abstract class in the
base class.<o:p></o:p></span></i></div>
<div class="MsoListParagraphCxSpMiddle" style="mso-list: l0 level1 lfo1; text-indent: -.25in;">
<span style="color: #0070c0; font-family: Wingdings; font-size: 14.0pt; line-height: 115%; mso-bidi-font-family: Wingdings; mso-fareast-font-family: Wingdings;">v<span style="font-family: 'Times New Roman'; font-size: 7pt; line-height: normal;"> </span></span><i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;">You can’t declare abstract method outside abstract class.<o:p></o:p></span></i></div>
<div class="MsoListParagraphCxSpMiddle" style="mso-list: l0 level1 lfo1; text-indent: -.25in;">
<span style="color: #0070c0; font-family: Wingdings; font-size: 14.0pt; line-height: 115%; mso-bidi-font-family: Wingdings; mso-fareast-font-family: Wingdings;">v<span style="font-family: 'Times New Roman'; font-size: 7pt; line-height: normal;"> </span></span><i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;">You can’t declare abstract class as a sealed.<o:p></o:p></span></i></div>
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<span style="color: #0070c0; font-family: Wingdings; font-size: 14.0pt; line-height: 115%; mso-bidi-font-family: Wingdings; mso-fareast-font-family: Wingdings;">v<span style="font-family: 'Times New Roman'; font-size: 7pt; line-height: normal;"> </span></span><i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;">A class which is derived from the abstract class must
override all the method inside the abstract class.<o:p></o:p></span></i></div>
<div class="MsoListParagraphCxSpMiddle" style="mso-list: l0 level1 lfo1; text-indent: -.25in;">
<span style="color: #0070c0; font-family: Wingdings; font-size: 14.0pt; line-height: 115%; mso-bidi-font-family: Wingdings; mso-fareast-font-family: Wingdings;">v<span style="font-family: 'Times New Roman'; font-size: 7pt; line-height: normal;"> </span></span><i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;">If a derived class doesn’t implement all of the abstract
method in the base class, then the derived class must also be specified by
abstract.<o:p></o:p></span></i></div>
<div class="MsoListParagraphCxSpLast" style="mso-list: l0 level1 lfo1; text-indent: -.25in;">
<span style="color: #0070c0; font-family: Wingdings; font-size: 14.0pt; line-height: 115%; mso-bidi-font-family: Wingdings; mso-fareast-font-family: Wingdings;">v<span style="font-family: 'Times New Roman'; font-size: 7pt; line-height: normal;"> </span></span><i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;">Abstract method is method without any body.<o:p></o:p></span></i></div>
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<i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;">Example:<o:p></o:p></span></i><br />
<i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;"><br /></span></i></div>
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<i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;">using System;<o:p></o:p></span></i></div>
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<i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;">abstract class Animal<o:p></o:p></span></i></div>
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<i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;">{<o:p></o:p></span></i></div>
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<i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;">    public abstract void FoodHabits();<o:p></o:p></span></i></div>
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<i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;">}<o:p></o:p></span></i></div>
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<i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;">class
Carnivorous:Animal<o:p></o:p></span></i></div>
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<i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;">{<o:p></o:p></span></i></div>
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<i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;">    public override void FoodHabits()<o:p></o:p></span></i></div>
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<i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;">{<o:p></o:p></span></i></div>
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<i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;">    Console.WriteLine("The Carnivorous
Animal Eat Only Meat");<o:p></o:p></span></i></div>
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<i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;">}<o:p></o:p></span></i></div>
<div class="MsoNormal">
<i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;">}<o:p></o:p></span></i></div>
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<i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;">class
Herbivorous:Animal<o:p></o:p></span></i></div>
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<i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;">{<o:p></o:p></span></i></div>
<div class="MsoNormal">
<i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;">    public override void FoodHabits()<o:p></o:p></span></i></div>
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<i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;">    {<o:p></o:p></span></i></div>
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<i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;">        Console.WriteLine("The Harbivorous
Animal Eat Only Plants");<o:p></o:p></span></i></div>
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<i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;">    }<o:p></o:p></span></i></div>
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<i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;">}<o:p></o:p></span></i></div>
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<i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;">class Implement<o:p></o:p></span></i></div>
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<i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;">{<o:p></o:p></span></i></div>
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<i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;">    public static void Main()<o:p></o:p></span></i></div>
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<i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;">    {<o:p></o:p></span></i></div>
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<i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;">        Carnivorous cn = new Carnivorous();<o:p></o:p></span></i></div>
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<i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;">        Herbivorous hb = new Herbivorous();<o:p></o:p></span></i></div>
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<i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;">        cn.FoodHabits();<o:p></o:p></span></i></div>
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<i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;">        hb.FoodHabits();<o:p></o:p></span></i></div>
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<i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;">        Console.ReadLine();<o:p></o:p></span></i></div>
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<i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;">    }<o:p></o:p></span></i></div>
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<i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;">}<o:p></o:p></span></i></div>
<br />
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<i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;">See the output below…..<o:p></o:p></span></i></div>
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<i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;"><br /></span></i></div>
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<i><span style="color: #0070c0; font-size: 14.0pt; line-height: 115%;">SO Friends these are
few Blogs that will help you in "Abstract Class in C-sharp" next time
i will put some more interesting Blogs thank you..I Hope Help full u... enjoy :)
.Krishna Singh<o:p></o:p></span></i></div>
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Abstract Class in C#? example

Abstract Class in C#? example “An abstract is implement that the class is incomplete and can’t be use directly,...

What is Abstraction and types of Access Specifier and define?

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<span style="background-color: blue; color: lime; font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">Abstraction:</span><br />
<br />
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">"Abstraction is a process of hiding the implementation details and displaying the essential features."</span><br />
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">                      "Abstraction is a process that involves identifying the critical behavior of an object and eliminating irrelevant and complex details."</span><br />
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><br /></span>
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">Example1: A Laptop consists of many things such as processor, motherboard, RAM, keyboard, LCD screen, wireless antenna, web camera, usb ports, battery, speakers etc. To use it, you don't need to know how internally LCD screens, keyboard, web camera, battery, wireless antenna, speaker’s works.  You just need to know how to operate the laptop by switching it on. Think about if you would have to call to the engineer who knows all internal details of the laptop before operating it. This would have highly expensive as well as not easy to use everywhere by everyone.</span><br />
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><br /></span>
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">So here the Laptop is an object that is designed to hide its complexity.</span><br />
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">How to abstract: - By using Access Specifiers</span><br />
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><br /></span>
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">.Net has five access Specifiers</span><br />
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><br /></span>
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">Public -- Accessible outside the class through object reference.</span><br />
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><br /></span>
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">Private -- Accessible inside the class only through member functions.</span><br />
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><br /></span>
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">Protected -- Just like private but Accessible in derived classes also through member </span><br />
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">functions.</span><br />
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><br /></span>
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">Internal -- Visible inside the assembly. Accessible through objects.</span><br />
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><br /></span>
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">Protected Internal -- Visible inside the assembly through objects and in derived classes outside the assembly through member functions.</span><br />
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><br /></span>
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><br /></span>
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><br /></span>
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><br /></span>
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><br /></span>
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What is Abstraction and types of Access Specifier and define?

Abstraction: "Abstraction is a process of hiding the implementation details and displaying the essential features." ...

Difference between Console.WriteLine() and Console.Write() method

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<b><span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">Q:-What is the Difference between System.console.WriteLine() and System.console.Write() method</span></b><br />
<b><span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">example?</span></b><br />
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><br /></span>
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">Ans:-Both the method enable you to print information on the screen in the same manner, but with a small difference...</span><br />
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">System.console.WriteLine() prints the Information on Screen and goes to new Line. However,</span><br />
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">System.console.Write(0 print the Information on the Screen , but does not go to new Line.</span><br />
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><br /></span>
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">for example:</span><br />
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">using System;</span><br />
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">using System.Collections.Generic;</span><br />
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">using System.Text;</span><br />
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><br /></span>
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">namespace different_program</span><br />
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">{</span><br />
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">    class Program</span><br />
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">    {</span><br />
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">        static void Main(string[] args)</span><br />
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">        {</span><br />
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">            System.Console.WriteLine("Welcome To TechFusion");</span><br />
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">            System.Console.WriteLine("Welcome to IT Programming Sikho \n");   </span><br />
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><br /></span>
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">   //\n use for the line space of the comment </span><br />
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><br /></span>
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">            System.Console.Write("Hello IT Friends How Are You \t");        </span><br />
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><br /></span>
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">    // \t use for the space of the same line comment</span><br />
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><br /></span>
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">            System.Console.Write("I Hope This Blog Helpfull for U");</span><br />
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">            console.ReadLine();         // console.ReadLine() use for see output..</span><br />
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">        }</span><br />
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">    }</span><br />
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">}</span><br />
<span style="font-family: Verdana, sans-serif;"><br /></span>
<b><span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">See output below This program....</span></b><br />
<div>
<br /></div>
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Difference between Console.WriteLine() and Console.Write() method

Q:-What is the Difference between System.console.WriteLine() and System.console.Write() method example? Ans:-Both the method enable you ...

Java Program without main() function? - TechFusion

Java Program without main() function? - TechFusion

Java Program without main() function?

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<div class="MsoNormal">
<span style="font-family: Georgia, Times New Roman, serif;">Hi,</span></div>
<div class="MsoNormal">
<span style="font-family: Georgia, Times New Roman, serif;"><br /></span></div>
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<span style="font-family: Verdana, sans-serif;">This
Article Based on Java Program, without main () function<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">"Java is class based object oriented programming Language"...<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">Example:<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">class Math<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">{<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">Static   //main() is
not use this program<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">{<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">int a, b, c;<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">a=12;<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">b=5;<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">c=a+b;<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">if(c==a+b)<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">{<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">System.out.println("a+b\t" +c );<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">c=a-b;<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">if(c==a-b)<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">{<o:p></o:p></span></div>
<div class="MsoNormal">
<span style="font-family: Verdana, sans-serif;">System.out.println("a-b\t" +c);<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">c=a*b;<o:p></o:p></span></div>
<div class="MsoNormal">
<span style="font-family: Verdana, sans-serif;">if(c==a*b)<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">{<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">System.out.println("a*b\t" +c);<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">c=a/b;<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">if(c==a/b)<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">{<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">System.out.println("a/b\t" +c);<o:p></o:p></span></div>
<div class="MsoNormal">
<span style="font-family: Verdana, sans-serif;">}<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">else<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">{<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">System.out.println("No result");<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">}<o:p></o:p></span></div>
<div class="MsoNormal">
<span style="font-family: Verdana, sans-serif;">}<o:p></o:p></span></div>
<div class="MsoNormal">
<span style="font-family: Verdana, sans-serif;">}<o:p></o:p></span></div>
<div class="MsoNormal">
<span style="font-family: Verdana, sans-serif;">}<o:p></o:p></span></div>
<div class="MsoNormal">
<span style="font-family: Verdana, sans-serif;">}<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">}<o:p></o:p></span></div>
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<br /></div>
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<span style="font-family: Verdana, sans-serif;">Create this program in notepad and open CMD and got to
location where your program have save as like suppose desktop then type cd
desktop then you see CMD </span><o:p></o:p></div>
<div class="separator" style="clear: both; text-align: center;">
</div>
<br />
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg4Wx60Ey0Xxxh5L-jYNHU6DqkkFduwqiQ8-DHpZDzgsIPO51Et1f0fBbC2oV11ql1j5wKS99pdfTya0vH5rSxlM5tIwuC5oTHXBg5TU8oYVyQAuTw9mafq_Oi0994Xja9sRkyAMQdOEsCR/s1600/java.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="374" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg4Wx60Ey0Xxxh5L-jYNHU6DqkkFduwqiQ8-DHpZDzgsIPO51Et1f0fBbC2oV11ql1j5wKS99pdfTya0vH5rSxlM5tIwuC5oTHXBg5TU8oYVyQAuTw9mafq_Oi0994Xja9sRkyAMQdOEsCR/s1600/java.png" width="640" /></a></div>
<br />
<div class="separator" style="clear: both; text-align: center;">
</div>
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<o:p></o:p></div>
<div class="MsoNormal">
<span style="font-family: Verdana, sans-serif;">Then my program file save in new folder as like java prog so
then I command use cd java prog then seen CMD</span><o:p></o:p></div>
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<span style="font-family: Verdana, sans-serif;"><br /></span></div>
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEisWrRRaLrw6Z-3L07Yfy1WgX4WTSTNWQ-TbVlG2AQ0IXFgl7r9ubFQPXBu2ckAF8EZ0c8WpMQt2F7CS3H_BS8vGFad6fCCshyphenhyphen0rkyA2RL4ETdi0YiClUX_6lEhuWGRDclqfJcMgBXCgBxT/s1600/java2.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="374" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEisWrRRaLrw6Z-3L07Yfy1WgX4WTSTNWQ-TbVlG2AQ0IXFgl7r9ubFQPXBu2ckAF8EZ0c8WpMQt2F7CS3H_BS8vGFad6fCCshyphenhyphen0rkyA2RL4ETdi0YiClUX_6lEhuWGRDclqfJcMgBXCgBxT/s1600/java2.png" width="640" /></a></div>
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<o:p></o:p></div>
<div class="MsoNormal">
<span style="font-family: Verdana, sans-serif;">Then seen output use command for compile java program<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">Javac math.java<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">    When compile
program then automatically generate class file go to java prog folder or own
location where you save math.java program.<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">It is compile successfully no any error…<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">After that run the java program use command java and class
name …as like this…<o:p></o:p></span></div>
<div class="MsoNormal">
<span style="font-family: Verdana, sans-serif;">Java math<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">Seen CMD for output..</span><o:p></o:p></div>
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhDJBv7a8HCm7C0Z5rdKzvlsdZyjKIWYfbbuhX_af8lFMGyukg5Ta_ZLes6U2X4krwn9qyIoYZxOdDsMfFqotP0_XqCuHdl-THIc8UDHco9aHlA15lAQSih6qEOZsc4IkiYtmrR8maKQKsl/s1600/java3png.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="374" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhDJBv7a8HCm7C0Z5rdKzvlsdZyjKIWYfbbuhX_af8lFMGyukg5Ta_ZLes6U2X4krwn9qyIoYZxOdDsMfFqotP0_XqCuHdl-THIc8UDHco9aHlA15lAQSih6qEOZsc4IkiYtmrR8maKQKsl/s1600/java3png.png" width="640" /></a></div>
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<o:p></o:p></div>
<div class="MsoNormal">
<span style="font-family: Verdana, sans-serif;">Finally no any error compiles and run time … only exception
at after rum and output but before not any exception…</span><o:p></o:p></div>
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<br /></div>
<div class="MsoNormal">
<br /></div>
<br />
<div class="MsoNormal">
<o:p> By KR...</o:p></div>
</div>

Java Program without main() function?

Hi, This Article Based on Java Program, without main () function "Java is class based object oriented programming Language...

delegate in C#

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<b><i><span style="color: red; font-family: Verdana, sans-serif; line-height: 115%;">                                 </span></i></b><br />
<u><span style="font-family: Verdana, sans-serif; line-height: 115%;">Agenda :</span></u><br />
<b><u><span style="color: #ffc000; font-family: Verdana, sans-serif; line-height: 115%;"><br /></span></u></b></div>
<div class="MsoListParagraphCxSpFirst" style="mso-list: l0 level1 lfo1; text-indent: -.25in;">
<span style="font-family: Verdana, sans-serif;"><span style="line-height: 115%;"><span style="color: #00b050;"><img alt="*" height="16" src="file:///C:/Windows/TEMP/msohtmlclip1/01/clip_image001.gif" width="16" /></span><span style="line-height: normal;"><span style="color: #00b050;">   </span> </span></span><span style="line-height: 115%;">What is delegate?<o:p></o:p></span></span></div>
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<span style="font-family: Verdana, sans-serif;"><span style="line-height: 115%;"><img alt="*" height="16" src="file:///C:/Windows/TEMP/msohtmlclip1/01/clip_image001.gif" width="16" /><span style="line-height: normal;">    </span></span><span style="line-height: 115%;">How to declare delegate
by keyword?<o:p></o:p></span></span></div>
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<span style="font-family: Verdana, sans-serif;"><span style="line-height: 115%;"><img alt="*" height="16" src="file:///C:/Windows/TEMP/msohtmlclip1/01/clip_image001.gif" width="16" /><span style="line-height: normal;">    </span></span><span style="line-height: 115%;">Types of delegate?<o:p></o:p></span></span></div>
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<span style="font-family: Verdana, sans-serif;"><span style="line-height: 115%;"><img alt="*" height="16" src="file:///C:/Windows/TEMP/msohtmlclip1/01/clip_image001.gif" width="16" /><span style="line-height: normal;">    </span></span><span style="line-height: 115%;">Example program in use
delegate?<o:p></o:p></span></span></div>
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<span style="font-family: Verdana, sans-serif;"><span style="line-height: 115%;"><img alt="*" height="16" src="file:///C:/Windows/TEMP/msohtmlclip1/01/clip_image001.gif" width="16" /><span style="line-height: normal;">    </span></span><span style="line-height: 115%;">Output of the example
program?<i style="font-weight: bold;"><o:p></o:p></i></span></span></div>
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<span style="font-family: Verdana, sans-serif;"><br /></span></div>
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<span style="font-family: Verdana, sans-serif;"><br /></span></div>
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<span style="font-family: Verdana, sans-serif;"><span style="color: #00b050; line-height: 115%;">   “Delegate</span><span style="color: #7f7f7f; line-height: 115%;"> is a reference type method which holds the reference
method.”<o:p></o:p></span></span></div>
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<span style="color: #7f7f7f; font-family: Verdana, sans-serif; line-height: 115%;">                           “Delegates are use at run time”.<o:p></o:p></span><br />
<span style="color: #7f7f7f; font-family: Verdana, sans-serif; line-height: 115%;"><br /></span></div>
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<span style="color: #7f7f7f; font-family: Verdana, sans-serif; line-height: 115%;">Declare delegate
below this keyword:<o:p></o:p></span></div>
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<span style="color: #7f7f7f; font-family: Verdana, sans-serif; line-height: 115%;"><br /></span>
<span style="color: #7f7f7f; font-family: Verdana, sans-serif; line-height: 115%;">Public delegate void
mydelegate(String s);<o:p></o:p></span></div>
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<span style="color: #7f7f7f; font-family: Verdana, sans-serif; line-height: 115%;"><br /></span>
<span style="color: #7f7f7f; font-family: Verdana, sans-serif; line-height: 115%;">There are two types
of delegate:<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;"><span style="color: #7f7f7f; line-height: 115%;">1.<span style="line-height: normal;">    
</span></span><span style="color: #7f7f7f; line-height: 115%;">Single cast delegate:-“A
single cast delegate contains reference to only one method at a time".<o:p></o:p></span></span></div>
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<span style="font-family: Verdana, sans-serif;"><span style="color: #7f7f7f; line-height: 115%;">2.<span style="line-height: normal;">    
</span></span><span style="color: #7f7f7f; line-height: 115%;">Multi cast delegate:- “A
multi cast delegate hold the reference of more than method and execute all the
method.it wraps in the calling order”.<o:p></o:p></span></span><br />
<span style="font-family: Verdana, sans-serif;"><span style="color: #7f7f7f; line-height: 115%;"><br /></span></span></div>
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<span style="font-family: Verdana, sans-serif;"><span style="color: #ffc000; line-height: 115%;">example of delegate program print to device<o:p></o:p></span></span></div>
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<span style="font-family: Verdana, sans-serif;"><span style="color: blue;"><br /></span></span>
<span style="font-family: Verdana, sans-serif;"><span style="color: blue;">using</span> System;<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;"><span style="color: blue;">using</span>
System.Collections.Generic;<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;"><span style="color: blue;">using</span>
System.Text;<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;"><span style="color: blue;">using</span> System.IO;<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;"><br /></span></div>
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<span style="font-family: Verdana, sans-serif;"><span style="color: blue;">namespace</span>
Delegates<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">{<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">    <span style="color: blue;">public</span>
<span style="color: blue;">class</span> <span style="color: #2b91af;">Program</span><o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">    {<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">        <span style="color: blue;">static</span> <span style="color: #2b91af;">FileStream</span> fstream;<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">        <span style="color: blue;">static</span> <span style="color: #2b91af;">StreamWriter</span> swriter;<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">        <span style="color: blue;">public</span> <span style="color: blue;">delegate</span>  <span style="color: blue;">void</span> <span style="color: #2b91af;">printdata</span>(<span style="color: #2b91af;">String</span>
s); <span style="color: green;">//apply delegate this program</span><o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">        <span style="color: blue;">public</span> <span style="color: blue;">static</span> <span style="color: blue;">void</span> Writeconsole(<span style="color: #2b91af;">String</span>
str)<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">        {<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">            <span style="color: #2b91af;">Console</span>.WriteLine(<span style="color: #a31515;">""</span>,
str);<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">        }<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">        <span style="color: blue;">public</span> <span style="color: blue;">static</span> <span style="color: blue;">void</span> WriteFile(<span style="color: #2b91af;">String</span>
s) <span style="color: green;">// name method</span><o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">        {<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">            fstream = <span style="color: blue;">new</span> <span style="color: #2b91af;">FileStream</span>(<span style="color: #a31515;">"C:\\Users\\KRISHNA SINGH\\Desktop\\Hi3.txt"</span>,
<span style="color: #2b91af;">FileMode</span>.Append, <span style="color: #2b91af;">FileAccess</span>.Write);
<span style="color: green;">// Apply to system location for create file u can
select any other location  for print file...and  u can create .doc file & .sxlx file &
.pps file and more…</span><o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">            swriter = <span style="color: blue;">new</span> <span style="color: #2b91af;">StreamWriter</span>(fstream);<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">            s = s +<span style="color: #a31515;">""</span>;a<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">           
swriter.WriteLine(s);<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">            swriter.Flush();<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">            swriter.Close();<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">            fstream.Close();<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">        }<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">        <o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">        <span style="color: blue;">public</span> <span style="color: blue;">static</span> <span style="color: blue;">void</span>
DisplayData(<span style="color: #2b91af;">printdata</span> pmethod)<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">        {<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">            pmethod(<span style="color: #a31515;">""</span>);<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">        }<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">        <span style="color: blue;">public</span> <span style="color: blue;">static</span> <span style="color: blue;">void</span> Main()<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">        {<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">            <span style="color: #2b91af;">printdata</span> pd = <span style="color: blue;">new</span>
<span style="color: #2b91af;">printdata</span>(Writeconsole);<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">            <span style="color: #2b91af;">printdata</span> f1 = <span style="color: blue;">new</span>
<span style="color: #2b91af;">printdata</span>(WriteFile);<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">            DisplayData(pd);<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">            DisplayData(f1);<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">            <span style="color: #2b91af;">Console</span>.ReadLine();<o:p></o:p></span></div>
<div class="MsoNormal" style="margin-bottom: 0.0001pt;">
<span style="font-family: Verdana, sans-serif;">        }<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">    }<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">}<o:p></o:p></span></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi9ZfNt0NpDUQGYN7l0mIBYpe4z2Li5Dnwa0FkFGsl7fJbe77saffeO2TVsKZf3rgVD6R9o9FHcaRG2hxkJAR0ZYSzRugLJJ9J6KI3o7EmFWMm7gr0b4e7RzSb8grHb-kwaOVYl1ILnmX3S/s1600/tech.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="374" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi9ZfNt0NpDUQGYN7l0mIBYpe4z2Li5Dnwa0FkFGsl7fJbe77saffeO2TVsKZf3rgVD6R9o9FHcaRG2hxkJAR0ZYSzRugLJJ9J6KI3o7EmFWMm7gr0b4e7RzSb8grHb-kwaOVYl1ILnmX3S/s1600/tech.png" width="640" /></a></div>
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<table cellpadding="0" cellspacing="0" class="tr-caption-container" style="float: right; margin-left: 1em; text-align: left;"><tbody>
<tr><td style="text-align: center;"></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Add caption</td></tr>
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<span style="font-family: Verdana, sans-serif;">Then run the program…u seen blank console CMD…
just like as<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;"><o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">Then enter the button…<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">Seen the output of this example of the delegate
program…<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">Go to your system location in which location u
given in program that this file print or create or not…<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;"><span class="MsoCommentReference"> </span>Look
file name is Hi3.txt…<o:p></o:p></span></div>
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<span style="font-family: Verdana, sans-serif;">This is ur output…</span><o:p></o:p></div>
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delegate in C#

Agenda : What is delegate? How to declare delegate by keyword? Types of delegate? ...

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