/*
* C# Programmers Pocket Consultant
* Author: Gregory S. MacBeth
* Email: gmacbeth@comporium.net
* Create Date: June 27, 2003
* Last Modified Date:
*/
using System;

namespace Client.Chapter_5___Building_Your_Own_Classes
{
public class PassingParametersByValueandByRef
{
static void Main(string[] args)
{
int MyInt = 5;

MyIntArray = new int[10];
ObjectCount++;
Method2();
Method2(1, 2);
MyMethodRef(ref MyInt);
Method2(new int[] { 1, 2, 3, 4 });
}
static private int MyInt = 5;
static public int MyInt2 = 10;
static public int[] MyIntArray;
private static int ObjectCount = 0;
static public int MyMethodRef(ref int myInt)
{
MyInt = MyInt + myInt;
return MyInt;
}
static public int MyMethod(int myInt)
{
MyInt = MyInt + myInt;
return MyInt;
}
static private long MyLongMethod(ref int myInt)
{
return myInt;
}
static public void Method2(params int[] args)
{
for (int I = 0; I < args.Length; I++) Console.WriteLine(args[I]); } } } [/csharp]

   


using System;  


class ReferenceAndOutputParamtersTest
{
   static void Main( string[] args )
   {

      int y = 5;
      int z; 

      Console.WriteLine( "Original value of y: {0}", y );
      Console.WriteLine( "Original value of z: uninitialized
" );

      SquareRef( ref y ); // must use keyword ref
      SquareOut( out z ); // must use keyword out

      Console.WriteLine( "Value of y after SquareRef: {0}", y );
      Console.WriteLine( "Value of z after SquareOut: {0}
", z );

      Square( y );
      Square( z );

      Console.WriteLine( "Value of y after Square: {0}", y );
      Console.WriteLine( "Value of z after Square: {0}", z );

   } 
   static void SquareRef( ref int x )
   {
      x = x * x;
   }

   static void SquareOut( out int x )
   {
      x = 6;
      x = x * x;
   } 

   static void Square( int x )
   {
      x = x * x;
   } 

}
           
          

   
 
using System;
class AddAssigment
{
    static void Main()
    {
        //addition
        int a = 5;
        a += 6;
        Console.WriteLine(a);

        //string concatenation
        string s = "Hello";
        s += " world.";
        Console.WriteLine(s);
    }
}

   
     

   
 
using System;
class ConditionalOp
{
    static double sinc(double x)
    {
        return x != 0.0 ? Math.Sin(x) / x : 1.0;
    }

    static void Main()
    {
        Console.WriteLine(sinc(0.2));
        Console.WriteLine(sinc(0.1));
        Console.WriteLine(sinc(0.0));
    }
}

   
     

   
 
using System;
class XOR
{
    static void Main()
    {
        Console.WriteLine(true ^ false);  // logical exclusive-or
        Console.WriteLine(false ^ false); // logical exclusive-or
        // Bitwise exclusive-or:
        Console.WriteLine("0x{0:x}", 0xf8 ^ 0x3f);
    }
}

   
     

   
 

//Octavalent Extension Methods
//http://sdfasdf.codeplex.com/
//Library of extension methods for .Net create by Octavalent (www.octavalent.nl)


namespace System.OctavalentExtensions
{
    public static class BooleanExtensions
    {
        public static object Iff(this bool value, object valueIfTrue, object valueIfFalse)
        {
            if (value)
                return valueIfTrue;

            return valueIfFalse;
        }
    }
}

   
     

   
 

using System;
class MainClass7
{
    static void Main()
    {
        int a = 0x0c;
        a |= 0x06;
        Console.WriteLine("0x{0:x8}", a);
        bool b = true;
        b |= false;
        Console.WriteLine(b);
    }
}