继承接口

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我是靠谱客的博主怕孤独中心，最近开发中收集的这篇文章主要介绍继承接口，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

父类

public class Father {
private int money;
int weight;
int getWeight() {
return weight;
}

protected void setWeight(int w) {
weight = w;
}
}

子类

public class Son extends Father {

String hand;
public void setHand(String hand) {
this.hand = hand;
}

String getHand() {
return hand;
}

}

public class Grandson extends Son{

String foot;
public void setFoot(String foot) {
  this.foot= foot;

}

String getfoot() {
  return foot;
}

}

public class Example5_1 {

public static void main(String[] args) {
  Son son = new Son();
  Grandson grandson = new Grandson();
  Father father = new Father();
  son.setWeight(62);
  son.setHand("一双大手");
  grandson.setWeight(29);
  grandson.setHand("一双小手");
  grandson.setFoot("一双小脚");

  System.out.println("儿子的重量：" + son.getWeight());
  System.out.println("孙子的重量：" + grandson.getWeight());
  System.out.println("儿子的手：" + son.getHand());
  System.out.println("孙子的手：" + grandson.getHand());
  System.out.println("孙子的脚：" + grandson.getfoot());
}

}

输出的结果是：

儿子的重量：62
孙子的重量：29
儿子的手：一双大手
孙子的手：一双小手
孙子的脚：一双小脚