Java enum: Demonstrate ordinal(), compareTo(), and equals(). : Enum « Language Basics « 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.JDK 6
25.JNDI LDAP
26.JPA
27.JSP
28.JSTL
29.Language Basics
30.Network Protocol
31.PDF RTF
32.Reflection
33.Regular Expressions
34.Scripting
35.Security
36.Servlets
37.Spring
38.Swing Components
39.Swing JFC
40.SWT JFace Eclipse
41.Threads
42.Tiny Application
43.Velocity
44.Web Services SOA
45.XML
Java » Language Basics » EnumScreenshots 
Java enum: Demonstrate ordinal(), compareTo(), and equals().
Java enum: Demonstrate ordinal(), compareTo(), and equals().
  

/*
Java 2, v5.0 (Tiger) New Features
by Herbert Schildt
ISBN: 0072258543
Publisher: McGraw-Hill/Osborne, 2004
*/
//  
 
// An enumeration of apple varieties. 
enum Apple {  
  Jonathan, GoldenDel, RedDel, Winsap, Cortland 

 
public class EnumDemo4 
  public static void main(String args[])  
  
    Apple ap, ap2, ap3; 
 
    // Obtain all ordinal values using ordinal(). 
    System.out.println("Here are all apple constants" 
                       " and their ordinal values: ")
    for(Apple a : Apple.values()) 
      System.out.println(a + " " + a.ordinal())
 
    ap =  Apple.RedDel; 
    ap2 = Apple.GoldenDel; 
    ap3 = Apple.RedDel; 
 
    System.out.println()
 
    // Demonstrate compareTo() and equals() 
    if(ap.compareTo(ap20
      System.out.println(ap + " comes before " + ap2)
 
    if(ap.compareTo(ap20
      System.out.println(ap2 + " comes before " + ap)
 
    if(ap.compareTo(ap3== 0
      System.out.println(ap + " equals " + ap3)
   
    System.out.println()
 
    if(ap.equals(ap2)) 
      System.out.println("Error!")
 
    if(ap.equals(ap3)) 
      System.out.println(ap + " equals " + ap3)
 
    if(ap == ap3
      System.out.println(ap + " == " + ap3)
 
  
}           
         
    
  
Related examples in the same category
1.How to use enum
2.Enum with switch statement
3.Enum and GenericEnum and Generic
4.Media enumeration constantsMedia enumeration constants
5.Use an enum constructor.
6.Switching on Enum and Adding Methods to an Enum
7.An enumeration of apple varieties. An enumeration of apple varieties.
8.Use the built-in enumeration methods. Use the built-in enumeration methods.
9.Use an enum constructor, instance variable, and method. Use an enum constructor, instance variable, and method.
10.Java enum: Creating an EnumJava enum: Creating an Enum
11.Java enum: EnumMap and Ant statusJava enum: EnumMap and Ant status
12.Java enum: Enum inside class
13.Java enum and varargs
14.This program demonstrates enumerated types
15.Shuffler Enum
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.