Java - Enum getDeclaringClass() method



Description

The Java Enum ordinal() method returns the ordinal of this enumeration constant (its position in its enum declaration, where the initial constant is assigned an ordinal of zero).

Declaration

Following is the declaration for java.lang.Enum.ordinal() method

public final int ordinal()

Parameters

NA

Return Value

This method returns the ordinal of this enumeration constant.

Exception

NA

Example 1

The following example shows the usage of ordinal() method for an enum using its reference.

package com.tutorialspoint;

// enum showing topics covered under Tutorials
enum Tutorials {  
   Java, HTML, Python; 
}  
public class EnumDemo { 
   public static void main(String args[]) { 
      Tutorials t1, t2, t3;     
      t1 = Tutorials.Java; 
      t2 = Tutorials.HTML; 
      t3 = Tutorials.Python; 
    
      // returns the ordinal corresponding to an enum
      System.out.println(t1.ordinal()); 
      System.out.println(t2.ordinal()); 
      System.out.println(t3.ordinal()); 
   } 
} 

Output

Let us compile and run the above program, this will produce the following result −

0
1
2

Example 2

The following example shows the usage of ordinal() method for an enum using its type directly.

package com.tutorialspoint;

// enum showing topics covered under Tutorials
enum Tutorials {  
   Java, HTML, Python; 
}  
public class EnumDemo { 
   public static void main(String args[]) {
    
      // returns the ordinal corresponding to an enum
      System.out.println(Tutorials.Java.ordinal()); 
      System.out.println(Tutorials.HTML.ordinal()); 
      System.out.println(Tutorials.Python.ordinal()); 
   } 
} 

Output

Let us compile and run the above program, this will produce the following result −

0
1
2
java_lang_enum.htm
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