JAVA 多态的基本意思

 

package Demo513.Multi;

public class DemoMultiMethod {
    public static void main(String[] args) {
     //写法格式 父类名 对象名= new 子类名（）；
        Employee one =new Teacher();
        one.work();
        Employee two =new Assistant();
        two.work();
    }
}
class Employee{
     void work(){

    }
}
class Teacher extends Employee{
    @Override
     void work(){
        System.out.println("讲课");

    }

}
class Assistant extends Employee{
    @Override
    void work(){
        System.out.println("辅导");
    }
}
运行代码↓