Use ref to pass a value type by reference : Parameters Passing « Language Basics « C# / C Sharp

Home
C# / C Sharp
1.2D Graphics
2.Class Interface
3.Collections Data Structure
4.Components
5.Data Types
6.Database ADO.net
7.Date Time
8.Design Patterns
9.Development Class
10.Event
11.File Stream
12.Generics
13.GUI Windows Form
14.Internationalization I18N
15.Language Basics
16.LINQ
17.Network
18.Office
19.Reflection
20.Regular Expressions
21.Security
22.Services Event
23.Thread
24.Web Services
25.Windows
26.Windows Presentation Foundation
27.XML
28.XML LINQ
C# / C Sharp » Language Basics » Parameters PassingScreenshots 
Use ref to pass a value type by reference
Use ref to pass a value type by reference

/*
C#: The Complete Reference 
by Herbert Schildt 

Publisher: Osborne/McGraw-Hill (March 8, 2002)
ISBN: 0072134852
*/
// Use ref to pass a value type by reference. 
 
using System; 
 
class RefTest 
  /* This method changes its arguments. 
     Notice the use of ref. */ 
  public void sqr(ref int i) { 
    i = i * i; 
  

 
public class RefDemo 
  public static void Main() { 
    RefTest ob = new RefTest()
 
    int a = 10
 
    Console.WriteLine("a before call: " + a)
 
    ob.sqr(ref a)// notice the use of ref 
 
    Console.WriteLine("a after call: " + a)
  
}

           
       
Related examples in the same category
1.Parameter out and referenceParameter out and reference
2.Passing Parameters By Value and By RefPassing Parameters By Value and By Ref
3.Objects can be passed to methodsObjects can be passed to methods
4.Simple types are passed by valueSimple types are passed by value
5.Objects are passed by referenceObjects are passed by reference
6.Swap two valuesSwap two values
7.Use outUse out
8.Use two out parametersUse two out parameters
9.Swap two referencesSwap two references
10.Demonstrate paramsDemonstrate params
11.Use regular parameter with a params parameterUse regular parameter with a params parameter
12.Parameter demoParameter demo
13.Passing parameters by referencePassing parameters by reference
14.Passing parameters by valuePassing parameters by value
15.Illustrates the use of out parametersIllustrates the use of out parameters
16.Pass value by referencePass value by reference
17.Pass value by reference with read only valuePass value by reference with read only value
18.Ref and Out Parameters: compiling error
19.C# Ref and Out ParametersC# Ref and Out Parameters
20.Ref and Out Parameters 2Ref and Out Parameters 2
java2s.com  | Contact Us | Privacy Policy
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.