Source Code : Java enum: Demonstrate ordinal(), compareTo(), and equals().

Java Is Open Source Programming Language You Can Download From Java and Java Libraries From http://www.oracle.com. Click Here to download
We provide this code related to title for you to solve your developing problem easily. Libraries which is import in this program you can download from http://www.oracle.com. Click Here or search from google with Libraries Name you get jar file related it

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(ap2) < 0) 
      System.out.println(ap + " comes before " + ap2); 
 
    if(ap.compareTo(ap2) > 0) 
      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); 
 
  } 
}           
         
    
  

Thank with us