algorithms/src/test/java/DynamicDispatch.java at master · verifyCode/algorithms · GitHub

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/**

* @author xjn

* @since 2020-03-08

public class DynamicDispatch {

static abstract class Human {

protected abstract void sayHello();

}

static class Man extends Human {

@Override

protected void sayHello() {

System.out.println("Man");

}

static class Woman extends Human {

@Override

protected void sayHello() {

System.out.println("WoMan");

}

public static void main(String[] args) {

Human man = new Man();

Human woman = new Woman();

man.sayHello();

woman.sayHello();

man = new Woman();

man.sayHello();

}