Mahacode Free Source Code

using System;
using System.Collections.Generic;

public class Book : IComparable<Book> {
    private string name;
    private int circulation;

    private class AscendingCirculationComparer : IComparer<Book> {
        public int Compare(Book x, Book y) {
            if (x == null && y == null) return 0;
            else if (x == null) return -1;
            else if (y == null) return 1;
            if (x == y) return 0;
            return x.circulation - y.circulation;
        }
    }
    public Book(string name, int circulation) {
        this.name = name;
        this.circulation = circulation;
    }

    public static IComparer<Book> CirculationSorter {
        get { return new AscendingCirculationComparer(); }
    }

    public override string ToString() {
        return string.Format("{0}: Circulation = {1}", name, circulation);
    }

    public int CompareTo(Book other) {
        if (other == null) return 1;

        if (other == this) return 0;
        return string.Compare(this.name, other.name, true);
    }
}

public class MainClass {
    public static void Main() {
        List<Book> Books = new List<Book>();

        Books.Add(new Book("E", 1));
        Books.Add(new Book("T", 5));
        Books.Add(new Book("G", 2));
        Books.Add(new Book("S", 8));
        Books.Add(new Book("H", 5));

        foreach (Book n in Books) {
            Console.WriteLine("  " + n);
        }

        Books.Sort();
        foreach (Book n in Books) {
            Console.WriteLine("  " + n);
        }

        Books.Sort(Book.CirculationSorter);
        foreach (Book n in Books) {
            Console.WriteLine("  " + n);
        }
    }
}

/*
GDI+ Programming in C# and VB .NET
by Nick Symmonds

Publisher: Apress
ISBN: 159059035X
*/

using System;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Drawing.Imaging;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;

namespace ImageClass
{
    /// <summary>
    /// Summary description for ImageClass.
    /// </summary>
    public class ImageClass : System.Windows.Forms.Form
    {
    private System.Windows.Forms.OpenFileDialog ofdBitmap;
    private System.Windows.Forms.Button cmdOpen;
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.Container components = null;
    private System.Windows.Forms.GroupBox groupBox1;
    private System.Windows.Forms.Label label1;
    private System.Windows.Forms.Label label2;
    private System.Windows.Forms.Label label3;
    private System.Windows.Forms.Label label4;
    private System.Windows.Forms.Label label5;
    private System.Windows.Forms.Label lblHT;
    private System.Windows.Forms.Label lblWidth;
    private System.Windows.Forms.Label lblHdpi;
    private System.Windows.Forms.Label lblVdpi;
    private System.Windows.Forms.Label lblFormat;
    private System.Windows.Forms.Label label6;
    private System.Windows.Forms.Label lblSize;
    private System.Windows.Forms.Label lblDIM;
    private System.Windows.Forms.Label label8;
    private System.Windows.Forms.Button cmdSetRes;

    #region Class local variables
    Bitmap Bmp;
    RectangleF BMPContainer;
    #endregion

        public ImageClass()
        {
            //
            // Required for Windows Form Designer support
            //
            InitializeComponent();

      ofdBitmap.Filter= "Image Files(*.BMP;*.JPG;*.GIF)|*.BMP;*.JPG;*.GIF";
      ofdBitmap.InitialDirectory = "";
    }

        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        protected override void Dispose( bool disposing )
        {
            if( disposing )
            {
                if (components != null) 
                {
                    components.Dispose();
                }
            }
      if (Bmp != null)
        Bmp.Dispose();
            base.Dispose( disposing );
        }

        #region Windows Form Designer generated code
        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
      this.ofdBitmap = new System.Windows.Forms.OpenFileDialog();
      this.cmdOpen = new System.Windows.Forms.Button();
      this.groupBox1 = new System.Windows.Forms.GroupBox();
      this.label1 = new System.Windows.Forms.Label();
      this.label2 = new System.Windows.Forms.Label();
      this.label3 = new System.Windows.Forms.Label();
      this.label4 = new System.Windows.Forms.Label();
      this.label5 = new System.Windows.Forms.Label();
      this.lblHT = new System.Windows.Forms.Label();
      this.lblWidth = new System.Windows.Forms.Label();
      this.lblHdpi = new System.Windows.Forms.Label();
      this.lblVdpi = new System.Windows.Forms.Label();
      this.lblFormat = new System.Windows.Forms.Label();
      this.label6 = new System.Windows.Forms.Label();
      this.lblSize = new System.Windows.Forms.Label();
      this.lblDIM = new System.Windows.Forms.Label();
      this.label8 = new System.Windows.Forms.Label();
      this.cmdSetRes = new System.Windows.Forms.Button();
      this.groupBox1.SuspendLayout();
      this.SuspendLayout();
      // 
      // ofdBitmap
      // 
      this.ofdBitmap.FileOk += new System.ComponentModel.CancelEventHandler(this.OpenFile);
      // 
      // cmdOpen
      // 
      this.cmdOpen.Location = new System.Drawing.Point(16, 320);
      this.cmdOpen.Name = "cmdOpen";
      this.cmdOpen.Size = new System.Drawing.Size(72, 32);
      this.cmdOpen.TabIndex = 0;
      this.cmdOpen.Text = "Open";
      this.cmdOpen.Click += new System.EventHandler(this.Open);
      // 
      // groupBox1
      // 
      this.groupBox1.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                            this.lblDIM,
                                                                            this.label8,
                                                                            this.lblSize,
                                                                            this.label6,
                                                                            this.lblFormat,
                                                                            this.lblVdpi,
                                                                            this.lblHdpi,
                                                                            this.lblWidth,
                                                                            this.lblHT,
                                                                            this.label5,
                                                                            this.label4,
                                                                            this.label3,
                                                                            this.label2,
                                                                            this.label1});
      this.groupBox1.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
      this.groupBox1.Location = new System.Drawing.Point(144, 80);
      this.groupBox1.Name = "groupBox1";
      this.groupBox1.Size = new System.Drawing.Size(224, 224);
      this.groupBox1.TabIndex = 2;
      this.groupBox1.TabStop = false;
      this.groupBox1.Text = "Attributes";
      // 
      // label1
      // 
      this.label1.Location = new System.Drawing.Point(8, 24);
      this.label1.Name = "label1";
      this.label1.Size = new System.Drawing.Size(64, 16);
      this.label1.TabIndex = 0;
      this.label1.Text = "Height";
      // 
      // label2
      // 
      this.label2.Location = new System.Drawing.Point(8, 72);
      this.label2.Name = "label2";
      this.label2.Size = new System.Drawing.Size(64, 16);
      this.label2.TabIndex = 1;
      this.label2.Text = "Hdpi";
      // 
      // label3
      // 
      this.label3.Location = new System.Drawing.Point(8, 48);
      this.label3.Name = "label3";
      this.label3.Size = new System.Drawing.Size(64, 16);
      this.label3.TabIndex = 2;
      this.label3.Text = "Width";
      // 
      // label4
      // 
      this.label4.Location = new System.Drawing.Point(8, 96);
      this.label4.Name = "label4";
      this.label4.Size = new System.Drawing.Size(64, 16);
      this.label4.TabIndex = 3;
      this.label4.Text = "Vdpi";
      // 
      // label5
      // 
      this.label5.Location = new System.Drawing.Point(8, 120);
      this.label5.Name = "label5";
      this.label5.Size = new System.Drawing.Size(64, 16);
      this.label5.TabIndex = 4;
      this.label5.Text = "Format";
      // 
      // lblHT
      // 
      this.lblHT.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
      this.lblHT.Location = new System.Drawing.Point(80, 24);
      this.lblHT.Name = "lblHT";
      this.lblHT.Size = new System.Drawing.Size(136, 16);
      this.lblHT.TabIndex = 5;
      // 
      // lblWidth
      // 
      this.lblWidth.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
      this.lblWidth.Location = new System.Drawing.Point(80, 48);
      this.lblWidth.Name = "lblWidth";
      this.lblWidth.Size = new System.Drawing.Size(136, 16);
      this.lblWidth.TabIndex = 6;
      // 
      // lblHdpi
      // 
      this.lblHdpi.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
      this.lblHdpi.Location = new System.Drawing.Point(80, 72);
      this.lblHdpi.Name = "lblHdpi";
      this.lblHdpi.Size = new System.Drawing.Size(136, 16);
      this.lblHdpi.TabIndex = 7;
      // 
      // lblVdpi
      // 
      this.lblVdpi.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
      this.lblVdpi.Location = new System.Drawing.Point(80, 96);
      this.lblVdpi.Name = "lblVdpi";
      this.lblVdpi.Size = new System.Drawing.Size(136, 16);
      this.lblVdpi.TabIndex = 8;
      // 
      // lblFormat
      // 
      this.lblFormat.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
      this.lblFormat.Location = new System.Drawing.Point(80, 120);
      this.lblFormat.Name = "lblFormat";
      this.lblFormat.Size = new System.Drawing.Size(136, 16);
      this.lblFormat.TabIndex = 9;
      // 
      // label6
      // 
      this.label6.Location = new System.Drawing.Point(8, 160);
      this.label6.Name = "label6";
      this.label6.Size = new System.Drawing.Size(64, 16);
      this.label6.TabIndex = 10;
      this.label6.Text = "Size";
      // 
      // lblSize
      // 
      this.lblSize.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
      this.lblSize.Location = new System.Drawing.Point(80, 160);
      this.lblSize.Name = "lblSize";
      this.lblSize.Size = new System.Drawing.Size(136, 16);
      this.lblSize.TabIndex = 11;
      // 
      // lblDIM
      // 
      this.lblDIM.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
      this.lblDIM.Location = new System.Drawing.Point(80, 184);
      this.lblDIM.Name = "lblDIM";
      this.lblDIM.Size = new System.Drawing.Size(136, 16);
      this.lblDIM.TabIndex = 13;
      // 
      // label8
      // 
      this.label8.Location = new System.Drawing.Point(8, 184);
      this.label8.Name = "label8";
      this.label8.Size = new System.Drawing.Size(64, 16);
      this.label8.TabIndex = 12;
      this.label8.Text = "Dimensions";
      // 
      // cmdSetRes
      // 
      this.cmdSetRes.Location = new System.Drawing.Point(144, 320);
      this.cmdSetRes.Name = "cmdSetRes";
      this.cmdSetRes.Size = new System.Drawing.Size(128, 32);
      this.cmdSetRes.TabIndex = 3;
      this.cmdSetRes.Text = "Reset Resolution";
      this.cmdSetRes.Click += new System.EventHandler(this.SetRes);
      // 
      // ImageClass
      // 
      this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
      this.ClientSize = new System.Drawing.Size(392, 373);
      this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                  this.cmdSetRes,
                                                                  this.groupBox1,
                                                                  this.cmdOpen});
      this.MaximizeBox = false;
      this.MinimizeBox = false;
      this.Name = "ImageClass";
      this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
      this.Text = "ImageClass";
      this.Load += new System.EventHandler(this.ImageClass_Load);
      this.groupBox1.ResumeLayout(false);
      this.ResumeLayout(false);

    }
        #endregion

        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main() 
        {
            Application.Run(new ImageClass());
        }

    private void ImageClass_Load(object sender, System.EventArgs e)
    {
    }

    protected override void OnPaint( PaintEventArgs e)
    {
      Graphics G = e.Graphics;
      if ( Bmp != null )
      {
        //OK Folks. This is a BitBlt!
        G.DrawImage(Bmp, BMPContainer);
      }

      base.OnPaint(e);
    }

    private void Open(object sender, System.EventArgs e)
    {
      ofdBitmap.ShowDialog();
    }

    private void OpenFile(object sender, 
                          System.ComponentModel.CancelEventArgs e)
    {
      //Wondering what sender is?  Use reflection!
      if ( !( sender is System.Windows.Forms.OpenFileDialog ) )
        return;

      Bmp = new Bitmap( ofdBitmap.FileName );
      if ( Bmp != null )
      {
        ShowStats();
        DrawBMP();
      }
    }

    private void SetRes(object sender, System.EventArgs e)
    {
      if ( Bmp != null )
      {
        Bmp.SetResolution(150, 150);
        DrawBMP();
      }
    }

    private void DrawBMP()
    {
      if ( Bmp != null )
      {
        //Invalidate only the area where the image will be drawn
        Graphics G = this.CreateGraphics();
        GraphicsUnit GU = G.PageUnit;
        BMPContainer = Bmp.GetBounds( ref GU ); //X,Y = 0
        ShowStats();
        this.Invalidate( Rectangle.Round( BMPContainer ) );
        G.Dispose();
      }
    }
    private void ShowStats()
    {
      if ( Bmp != null )
      {
        //Show some properties here
        lblHT.Text = Bmp.Height.ToString();
        lblWidth.Text = Bmp.Width.ToString();
        lblVdpi.Text = Bmp.VerticalResolution.ToString();
        lblHdpi.Text = Bmp.HorizontalResolution.ToString();
        lblFormat.Text = Bmp.PixelFormat.ToString();
        lblSize.Text = Bmp.Size.ToString();
        lblDIM.Text = Bmp.PhysicalDimension.ToString();
      }
    }
    }
}

using System;

class ArrayUtils {

  public static bool copyInsert<T>(T e, int idx, T[] src, T[] target) {

    if(target.Length < src.Length+1)
      return false;

    for(int i=0, j=0; i < src.Length; i++, j++) {
      if(i == idx) {
        target[j] = e;
        j++;
      }
      target[j] = src[i];
    }

    return true;
  }
}

class Test {
  public static void Main() {
    int[] nums = { 1, 2, 3 };
    int[] nums2 = new int[4];

    Console.Write("Contents of nums: ");
    foreach(int x in nums)
      Console.Write(x + " ");

    Console.WriteLine();

    ArrayUtils.copyInsert(99, 2, nums, nums2);

    Console.Write("Contents of nums2: ");
    foreach(int x in nums2)
      Console.Write(x + " ");

    Console.WriteLine();

    string[] strs = { "Generics", "are", "powerful."};
    string[] strs2 = new string[4];

    Console.Write("Contents of strs: ");
    foreach(string s in strs)
      Console.Write(s + " ");

    Console.WriteLine();

    ArrayUtils.copyInsert("in C#", 1, strs, strs2);

    Console.Write("Contents of strs2: ");
    foreach(string s in strs2)
      Console.Write(s + " ");

  }
}
           
       

using System;

public class MainClass {
    public static void Main() {

        Console.WriteLine(Math.Round(4.4));
        Console.WriteLine(Math.Round(4.5));
        Console.WriteLine(Math.Round(4.6));
        Console.WriteLine(Math.Round(5.5));
        Console.WriteLine(Math.Round(4.54, 1));
        Console.WriteLine(Math.Round(4.55, 1));
        Console.WriteLine(Math.Round(4.65, 1));
        Console.WriteLine(Math.Round(4.56, 1));
    }
}

/*
C#: The Complete Reference 
by Herbert Schildt 

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

// Suspending, resuming, and stopping a thread. 
 
using System; 
using System.Threading; 
 
class MyThread {  
  public Thread thrd;  
    
  public MyThread(string name) {  
    thrd = new Thread(new ThreadStart(this.run)); 
    thrd.Name = name; 
    thrd.Start();  
  }  
  
  // This is the entry point for thread.  
  void run() {  
    Console.WriteLine(thrd.Name + " starting."); 
 
    for(int i = 1; i <= 1000; i++) {  
      Console.Write(i + " ");  
      if((i%10)==0) { 
        Console.WriteLine(); 
        Thread.Sleep(250); 
      } 
    } 
    Console.WriteLine(thrd.Name + " exiting.");  
  }  
} 
  
public class SuspendResumeStop {  
  public static void Main() {  
    MyThread mt1 = new MyThread("My Thread");  
 
    Thread.Sleep(1000); // let child thread start executing 
  
    mt1.thrd.Suspend();  
    Console.WriteLine("Suspending thread.");  
    Thread.Sleep(1000); 
 
    mt1.thrd.Resume();  
    Console.WriteLine("Resuming thread.");  
    Thread.Sleep(1000); 
 
    mt1.thrd.Suspend();  
    Console.WriteLine("Suspending thread.");  
    Thread.Sleep(1000); 
 
    mt1.thrd.Resume();  
    Console.WriteLine("Resuming thread.");  
    Thread.Sleep(1000); 
 
    Console.WriteLine("Stopping thread.");  
    mt1.thrd.Abort(); 
 
    mt1.thrd.Join(); // wait for thread to terminate 
 
    Console.WriteLine("Main thread terminating.");  
  }  
}