PureBoard

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using System;
using System.Windows.Forms;
using System.Drawing;



public class MainApp : System.Windows.Forms.Form {

   private Button info = new Button();
   private Button quit = new Button();


   // Entry Point, ruft Hauptprogramm auf
   public static int Main(string[] args) {
      Application.Run(new MainApp());
      return 0;
   }

   // Hauptprogramm
   public MainApp() {

      // Fenster initialisieren
      this.Text            = "C# Test Window";
      this.ClientSize      = new Size(230,40);
      this.StartPosition   = FormStartPosition.CenterScreen;
      this.FormBorderStyle = FormBorderStyle.FixedDialog;
      this.MaximizeBox     = false;
      this.MinimizeBox     = false;

      // Button "info" initialisieren
      info.Location        = new Point(10,10);
      info.Size            = new Size(100,20);
      info.Text            = "INFO!";
      info.Click          += new System.EventHandler(info_Click);

      // Button "quit" initialisieren
      quit.Location        = new Point(120,10);
      quit.Size            = new Size(100,20);
      quit.Text            = "Quit";
      quit.Click          += new System.EventHandler(quit_Click);

      // Buttons zum Fenster hinzufuegen
      this.Controls.Add(info);
      this.Controls.Add(quit);

   }


   // Event-Handler fuer Button "quit"
   private void quit_Click(object sender, EventArgs evArgs) {
      base.Dispose(); // exit
   }

   // Event-Handler fuer Button "info"
   private void info_Click(object sender, EventArgs evArgs) {
      MessageBox.Show("C# window example by Danilo",
                      "INFO",
                      MessageBoxButtons.OK,
                      MessageBoxIcon.Information);
   }



}

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MsgBox("VB.NET window example by Kiffi", MsgBoxStyle.OkOnly, "INFO")

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using System;

class Program {
   static void Main() {
       Console.WriteLine("Hallo!");
   }
}

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using System;

class Program {
   static void Main() {
       int x = mul(3,5);
       Console.WriteLine( sub(x, 12) );
       Console.WriteLine( sub(add(3,6), 12) );
   }
   
   static int add(int a, int b) {
       return a + b;
   }

   static int mul(int a, int b) {
       return a * b;
   }
   
   static int sub(int a, int b) {
       return a - b;
   }
}

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using System;

class Program {
   static void Main() {
       int x = 12;
       Console.WriteLine( x.ToString() );
       
       double d = 1.23456;
       Console.WriteLine( d.ToString() );

       address adr = new address() {
           name    = "John Boy",
           street  = "Karl-Marx-Allee 27",
           zip     = "12345",
           town    = "Potslin",
           country = "Germany"
       };
       
       Console.WriteLine( adr.ToString() );

       Console.WriteLine( new Window().ToString() );
   }
   
}

class address {
    public string name="";
    public string street="";
    public string zip="";
    public string town="";
    public string country="";
    
    public override string ToString() {
        return name + ", " + street + ", " + zip + " " + town + ", " + country;
    }
}

class Window {
}

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using System;

class Program {
   static void Main() {
       int x = 12;
       
       double d = 1.23456;

       address adr = new address() {
           name    = "John Boy",
           street  = "Karl-Marx-Allee 27",
           zip     = "12345",
           town    = "Potslin",
           country = "Germany"
       };
       
       //
       // Wenn eine Methode einen String erwartet oder entspr.
       // überladen wurde, wird .ToString() automatisch aufgerufen:
       //
       Console.WriteLine( x );
       Console.WriteLine( d );
       Console.WriteLine( adr );
       Console.WriteLine( new Window() );
   }
   
}

class address {
    public string name="";
    public string street="";
    public string zip="";
    public string town="";
    public string country="";
    
    public override string ToString() {
        return name + ", " + street + ", " + zip + " " + town + ", " + country;
    }
}

class Window {
}

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c:\windows\microsoft.net\framework\v4.0.30319\csc /t:exe Test.cs
test.exe

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mcs test_01.cs -out:test_01
mono ./test_01