利用封装，继承，多态知识点汇集来解决Teatcher和Student不同行为的案例演示，代码如下:
/**
* 人类
* @author Administrator
*
*/
public abstract class People {
private String name;
private int age;
public abstract void eat() ;
public void study() {
System.out.println("学习了..");
}
}
----------------------------------
public class Student extends People {
@Override
public void eat() {
// TODO Auto-generated method stub
System.out.println("正在吃鸡");
}
public void study() {
System.out.println("正在学习大数据...");
}
/**
* 旅游
*/
public void travel() {
System.out.println("去叙利亚一日游...");
}
}
-------------------------------------------------
public class Teacher extends People {
@Override
public void eat() {
System.out.println("正在吃大龙呀");
}
public void study() {
System.out.println("正在学习人工智能...");
}
public void play() {
System.out.println("陪宝宝在玩耍");
}
}
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public class Test {
public static void main(String[] args) {
//父类引用 变量名=new 具体的子类();
//点看左 输出看右
//创建一个数组 保存 2个人类的对象
People tt=new Teacher();
People ss=new Student();
People[] peoples=new People[2];
peoples[0]=ss;
peoples[1]=tt;
//循环来查看数组中2个对象的 属性和方法
for (People people : peoples) {
people.eat();
//people.travel(); 学生所特有的
//需要再输出 学生和老师的不同的方法
if ( people instanceof Student) {
Student student= (Student) people;
student.travel();
}
if (people instanceof Teacher) {
Teacher teacher=(Teacher) people;
teacher.play();
}
}
System.out.println("程序结束");
}
}