C# console based application

Posted on June 6, 2012July 28, 2015 by coder

The following program is a simple console based CSharp application. The program starts from the main() method. Create a new Console Application project and copy and paste the following C# source code.

using System;
using System.Collections.Generic;
using System.Text;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
              Console.WriteLine("My First Program");
              Console.ReadKey();
        }
    }
}

using System;

using System.Collections.Generic;

using System.Text;

namespace ConsoleApplication1

{

class Program

{

static void Main(string[] args)

{

Console.WriteLine("My First Program");

Console.ReadKey();

}

c# performance effect of threading

Posted on May 7, 2012June 20, 2015 by coder

// written by kutay zorlu
// when you INCREASE count of threads it is decreasing performce of prosess

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
namespace zip___test
{
class Program
{

public static Thread[] MyThreads = new Thread[10];
public static Name_creator[] asd = new Name_creator[10];
public int a = 0;
public static int Main(string[] args)
{
Name_creator me = new Name_creator();
for (int I = 0; I < 10; I++){

//MyThreads[I] = new Thread(new ThreadStart(me.MyThreadProc)); // Thread Sayısı artıkdca performans azalıyor
//MyThreads[I] = new Thread(new ThreadStart());
MyThreads[I] = new Thread(new ThreadStart( me.ThreadProc));
MyThreads[I].Start();
}

Console.Write("Zips starting ");

Console.ReadKey();
return 1;

}

public static void ThreadProc()
{
for (int i = 0; i < 100; i++)
{
Console.WriteLine("Kutay : "+i+"\n");
}
}
}

class Name_creator
{
zip___test.Program asd = new Program();

string date = DateTime.Now.ToString();
public Name_creator()
{
date += date+"_KZ";
}
public void ThreadProc()
{
for (int i = 0; i < 10000; i++)
{
asd.a++;
Console.WriteLine("date: " +date+"Kutay : " + i + "\n"+asd.a);
}// 45 saniyeye
}
}

}

// written by kutay zorlu

// when you INCREASE count of threads it is decreasing performce of prosess

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading;

namespace zip___test

{

class Program

{

public static Thread[] MyThreads = new Thread[10];

public static Name_creator[] asd = new Name_creator[10];

public int a = 0;

public static int Main(string[] args)

{

Name_creator me = new Name_creator();

for (int I = 0; I < 10; I++){

//MyThreads[I] = new Thread(new ThreadStart(me.MyThreadProc)); // Thread Sayısı artıkdca performans azalıyor

//MyThreads[I] = new Thread(new ThreadStart());

MyThreads[I] = new Thread(new ThreadStart( me.ThreadProc));

MyThreads[I].Start();

}

Console.Write("Zips starting ");

Console.ReadKey();

return 1;

}

public static void ThreadProc()

{

for (int i = 0; i < 100; i++)

{

Console.WriteLine("Kutay : "+i+"\n");

}

class Name_creator

{

zip___test.Program asd = new Program();

string date = DateTime.Now.ToString();

public Name_creator()

{

date += date+"_KZ";

}

public void ThreadProc()

{

for (int i = 0; i < 10000; i++)

{

asd.a++;

Console.WriteLine("date: " +date+"Kutay : " + i + "\n"+asd.a);

}// 45 saniyeye

}

String To Char Array

Posted on February 11, 2011June 27, 2015 by coder

using System;

public class StringToCharArray
{
    public static void Main()
    {
        string s = "Test String";
        
        for (int index = 0; index < s.Length; index++)
            Console.WriteLine("Char: {0}", s[index]);
    }
}

using System;

public class StringToCharArray

{

public static void Main()

{

string s = "Test String";

for (int index = 0; index < s.Length; index++)

Console.WriteLine("Char: {0}", s[index]);

}

Use Substring() 2

Posted on February 11, 2011June 27, 2015 by coder


   

/*
C#: The Complete Reference 
by Herbert Schildt 

Publisher: Osborne/McGraw-Hill (March 8, 2002)
ISBN: 0072134852
*/


// Use Substring(). 
  
using System;  
  
public class SubstringDemo {  
  public static void Main() {  
    string str = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"; 
 
    Console.WriteLine("str: " + str); 
     
    Console.Write("str.Substring(15): "); 
    string substr = str.Substring(15); 
    Console.WriteLine(substr); 
 
    Console.Write("str.Substring(0, 15): "); 
    substr = str.Substring(0, 15); 
    Console.WriteLine(substr); 
  } 
}

String Manipulation Concatenate

Posted on February 11, 2011June 27, 2015 by coder


   

/*
Learning C# 
by Jesse Liberty

Publisher: O&#039;Reilly 
ISBN: 0596003765
*/
 using System;

 namespace StringManipulation
 {
    public class TesterStringManipulationConcat
    {
       public void Run()
       {
           string s1 = "abcd";
           string s2 = "ABCD";

           // concatenation method
           string s3 = string.Concat(s1,s2);
           Console.WriteLine(
               "s3 concatenated from s1 and s2: {0}", s3);

           // use the overloaded operator
           string s4 = s1 + s2;
           Console.WriteLine(
               "s4 concatenated from s1 + s2: {0}", s4);

       }

       static void Main()
       {
          TesterStringManipulationConcat t = new TesterStringManipulationConcat();
          t.Run();
       }
    }
 }

String Manipulation

Posted on February 11, 2011June 27, 2015 by coder


   

/*
Learning C# 
by Jesse Liberty

Publisher: O&#039;Reilly 
ISBN: 0596003765
*/

 using System;

 namespace StringManipulation
 {
    public class TesterStringManipulationCompare
    {
       public void Run()
       {
           // create some strings to work with
           string s1 = "abcd";
           string s2 = "ABCD";
           int result;  // hold the results of comparisons

           // compare two strings, case sensitive
           result = string.Compare(s1, s2);
           Console.WriteLine(
               "compare s1: {0}, s2: {1}, result: {2}
",
               s1, s2, result);

           // overloaded compare, takes boolean "ignore case"
           //(true = ignore case)
           result = string.Compare(s1,s2, true);
           Console.WriteLine("Compare insensitive. result: {0}
",
               result);

       }

       [STAThread]
       static void Main()
       {
          TesterStringManipulationCompare t = new TesterStringManipulationCompare();
          t.Run();
       }
    }
 }

Illustrates the use of strings 1

Posted on February 11, 2011June 27, 2015 by coder


   

/*
Mastering Visual C# .NET
by Jason Price, Mike Gunderloy

Publisher: Sybex;
ISBN: 0782129110
*/

/*
  Example2_9.cs illustrates the use of strings
*/

public class Example2_9
{

  public static void Main()
  {

    string helloWorld = "Hello World!";
    System.Console.WriteLine(helloWorld);

    helloWorld = "Hello World" + " from C#!";
    System.Console.WriteLine(helloWorld);

    helloWorld = "Hello World" + "
 from C#!";
    System.Console.WriteLine(helloWorld);

    const double Pi = 3.14159;
    System.Console.WriteLine("Pi = " + Pi);

  }
}

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