Java hierarchy generic class : Generic Class « Generics « Java

Home
Java
1.2D Graphics GUI
2.3D
3.Advanced Graphics
4.Ant
5.Apache Common
6.Chart
7.Class
8.Collections Data Structure
9.Data Type
10.Database SQL JDBC
11.Design Pattern
12.Development Class
13.EJB3
14.Email
15.Event
16.File Input Output
17.Game
18.Generics
19.GWT
20.Hibernate
21.I18N
22.J2EE
23.J2ME
24.JavaFX
25.JDK 6
26.JDK 7
27.JNDI LDAP
28.JPA
29.JSP
30.JSTL
31.Language Basics
32.Network Protocol
33.PDF RTF
34.Reflection
35.Regular Expressions
36.Scripting
37.Security
38.Servlets
39.Spring
40.Swing Components
41.Swing JFC
42.SWT JFace Eclipse
43.Threads
44.Tiny Application
45.Velocity
46.Web Services SOA
47.XML
Java » Generics » Generic Class 




Java hierarchy generic class
Java hierarchy generic class
   
/*
Java 2, v5.0 (Tiger) New Features
by Herbert Schildt
ISBN: 0072258543
Publisher: McGraw-Hill/Osborne, 2004
*/
// Here, T is bound by Object by default. 
class Gen<T> {  
  T ob; // here, T will be replaced by Object 
    
  Gen(T o) {  
    ob = o;  
  }  
  
  // Return ob.  
  T getob() {  
    return ob;  
  }  
}  
 
// Here, T is bound by String. 
class GenStr<T extends String> 
  T str; // here, T will be replaced by String 
 
  GenStr(T o) {  
    str = o;  
  }  
 
  T getstr() { return str; 
}

public class GenTypeDemo {  
  public static void main(String args[]) {  
    Gen<Integer> iOb = new Gen<Integer>(99);  
    Gen<Float> fOb = new Gen<Float>(102.2F)
 
    System.out.println(iOb.getClass().getName())
    System.out.println(fOb.getClass().getName())
  
}

           
         
    
    
  














Related examples in the same category
1.A simple generic class. A simple generic class.
2.Demonstrate the non generic classDemonstrate the non generic class
3.Stats attempts (unsuccessfully) to create a generic class
4.A simple generic class hierarchy.A simple generic class hierarchy.
5.A nongeneric class can be the superclass of a generic subclass.A nongeneric class can be the superclass of a generic subclass.
6.Use the instanceof operator with a generic class hierarchy. Use the instanceof operator with a generic class hierarchy.
7.Custom Generic Object TesterCustom Generic Object Tester
8.Pair of template arguments
9.Generic pair structure
10.Simple STL Pair Implementation
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.