How do I get ordinal value of enum constant?

This example demonstrate the use of enum ordinal() method to get the ordinal value of an enum constant.

package org.kodejava.basic;

enum Color {

public class EnumOrdinal {
    public static void main(String[] args) {
        // Gets the ordinal of this enumeration constant (its
        // position in its enum declaration, where the initial 
        // constant is assigned an ordinal of zero)
        System.out.println("Color.RED  : " + Color.RED.ordinal());
        System.out.println("Color.GREEN: " + Color.GREEN.ordinal());
        System.out.println("Color.BLUE : " + Color.BLUE.ordinal());

The program print the following result:

Color.RED  : 0
Color.GREEN: 1
Color.BLUE : 2

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