// enums/cartoons/EnumImplementation.java

// (c)2017 MindView LLC: see Copyright.txt

// We make no guarantees that this code is fit for any purpose.

// Visit http://OnJava8.com for more book information.

// An enum can implement an interface

// {java enums.cartoons.EnumImplementation}

package enums.cartoons;

import java.util.*;

import java.util.function.*;

enum CartoonCharacter

implements Supplier<CartoonCharacter> {

SLAPPY, SPANKY, PUNCHY,

SILLY, BOUNCY, NUTTY, BOB;

private Random rand =

new Random(47);

@Override

public CartoonCharacter get() {

return values()[rand.nextInt(values().length)];

}

}

public class EnumImplementation {

public static <T> void printNext(Supplier<T> rg) {

System.out.print(rg.get() + ", ");

}

public static void main(String[] args) {

// Choose any instance:

CartoonCharacter cc = CartoonCharacter.BOB;

for(int i = 0; i < 10; i++)

printNext(cc);

}

}

/* Output:

BOB, PUNCHY, BOB, SPANKY, NUTTY, PUNCHY, SLAPPY, NUTTY,

NUTTY, SLAPPY,

*/