Swap two values : Parameters Passing « Language Basics « C# / C Sharp

Swap two values

/*
C#: The Complete Reference 
by Herbert Schildt 

Publisher: Osborne/McGraw-Hill (March 8, 2002)
ISBN: 0072134852
*/
// Swap two values. 
 
using System; 
 
class Swap { 
  // This method now changes its arguments. 
  public void swap(ref int a, ref int b) { 
    int t; 
  
    t = a; 
    a = b; 
    b = t; 
  } 
} 
 
public class SwapDemo { 
  public static void Main() { 
    Swap ob = new Swap(); 
 
    int x = 10, y = 20; 
 
    Console.WriteLine("x and y before call: " + x + " " + y); 
 
    ob.swap(ref x, ref y);  
 
    Console.WriteLine("x and y after call: " + x + " " + y); 
  } 
}

1.	Parameter out and reference
2.	Passing Parameters By Value and By Ref
3.	Objects can be passed to methods
4.	Simple types are passed by value
5.	Objects are passed by reference
6.	Use ref to pass a value type by reference
7.	Use out
8.	Use two out parameters
9.	Swap two references
10.	Demonstrate params
11.	Use regular parameter with a params parameter
12.	Parameter demo
13.	Passing parameters by reference
14.	Passing parameters by value
15.	Illustrates the use of out parameters
16.	Pass value by reference
17.	Pass value by reference with read only value
18.	Ref and Out Parameters: compiling error
19.	C# Ref and Out Parameters
20.	Ref and Out Parameters 2

Swap two values : Parameters Passing « Language Basics « C# / C Sharp

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