Benefit of Polymorphism [closed]
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: When I started to look for the benefits of polymorphism, I found with this question here. But here I was unable to find my answer. Let me tell what I want to find. Here I have some classes: class CoolingMachines{ public void startMachine(){ //No implementationion } public void stopMachine(){ //No implementationion } } class Refrigerator extends CoolingMachines{ public void startMachine(){ System.out.println("Refrigerator Starts"); } public void stopMachine(){ System.out.println("Refrigerator Stop"); } public void trip(){ System.out.println(