Java Programming : Polymorphic Arguments

public class fatty {

public void digist(food x){x.eat();}}

import javax.swing.JFrame;public class Main {public static void main(String[] args){fatty bucky = new fatty();food fo = new food();food po = new potpie();bucky.digist(fo);bucky.digist(po);}}

接在上一个话题

the result is : 

this food is great
this potpie is great