java多态

1 通过抽象类实现，通过对抽象类中的抽象方法不同的实现，来实现多态。

package unit4;

public abstract class Employee {

    int basic =2000;
    abstract void salary();
}


package unit4;

public class Manager extends Employee {
    void salary(){
        System.out.println("薪资等于:"+basic*5);
        System.out.println("**********************");
        
    }

}


package unit4;

public class Worker extends Employee {

    void salary(){
        System.out.println("薪资等于:"+basic*2);
        System.out.println("***********************");
    }
}


package unit4;

import com.sun.java_cup.internal.parse_action;

public class abstracttest {
    public static void main(String[] args) {
        Employee[] p = new Employee[5];
        p[0]=new Manager();
        p[1]= new Worker();
        p[2]=new Manager();
        p[3]= new Worker();
        p[4]=new Manager();
        p[2]= new Worker();
        for(int i=0;i<5;i++){
            p[i].salary();
        }
    }
    

}