【Java】实验三多态与接口

1、编写程序完成不同种类的雇员的工资计算，要求：

（1）每个员工都有基本工资和绩效；

（2）不同种类雇员有不同的基本工资和绩效，通过继承多态的方式来实现；

（3）经理级别的员工还有业绩奖金，通过接口来设计；

（4）恰当设计类、成员、子类、接口之间的关系，正确计算工资。

   //定义主类
   public class Main {
       public static void main(String[] args) {
           Member b1 = new FirstMember();
           System.out.println("//一等员工工资");
           b1.display();
           b1 = new SecondMember();
           System.out.println("//二等员工工资");
           b1.display();
           b1 = new Manger();
           System.out.println("//经理工资");
           b1.display();
       }
   }

//奖金接口

public interface Bonus {
public abstract double show();
}

//一级员工类

public class FirstMember extends Member{   //定义一级员工继承Member类
   public FirstMember() {
       super(10000,5000);
   }

   public void display() {
           System.out.println("您的奖金为"+(wage+raward)+"元");
       }
   }

//二级员工类

public class SecondMember extends Member{   //定义二级员工继承Member类
   public SecondMember() {
       super(8000,3500);
   }

   public void display() {
           System.out.println("您的奖金为"+(wage+raward)+"元");
       }
}

//经理类

public class Manger extends Member implements Bonus{   //定义经理类继承Member类实现奖金接口
   public Manger() {
       super(15000,5000);
   }
   public double show() {
       return 1500;
   }
   public void display() {
       System.out.println("您的奖金为"+(wage+raward+show())+"元");
   }
   }

//员工抽象类

public abstract class Member {
   double wage;
   double raward;
   public Member() {
       wage = 6000;
       raward = 1500;
   }
   public Member(double a,double b) {
       wage = a;
       raward = b;
   }

   public abstract void display();
}

//测试类
   public class Main {
       public static void main(String[] args) {
           Member b1 = new FirstMember();
           System.out.println("//一等员工工资");
           b1.display();
           b1 = new SecondMember();
           System.out.println("//二等员工工资");
           b1.display();
           b1 = new Manger();
           System.out.println("//经理工资");
           b1.display();
       }
   }

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2、模拟电脑组装，不同的电脑组装需要实现CPU接口，硬盘接口和内存接口。恰当设计类与接口，以及其关系，实现电脑的组装，输出正确的结果。

//测试类

import java.util.*;
public class Main {
   public static void main(String[] args) {
       Scanner s = new Scanner(System.in);
System.out.println("想要一台什么配置的电脑？自己来请按1，听我的请按2");
int t = s.nextInt();
if(t == 2) {
Computer c1 = new Computer();
c1.display();
}
else {
   if(t == 1) {
   System.out.println("请依次输入您需要的详细配置（CPU、硬盘、内存）：");
   String t1,t2,t3;
   t1 = s.next();
   t2 = s.next();
   t3 = s.next();
   Computer c2 = new Computer(t1,t2,t3);
   c2.display();
      }
    }
   }
}

//Computer类
public class Computer implements CPU,RAM,ROM{
String s1;
String s2;
String s3;

public Computer() {//无参构造（听我的）
   s1 = "AMD R7-6600H";
   s2 = "512G固态硬盘";
   s3 = "16G内存条";
}

public Computer(String s1,String s2,String s3) {
   this.s1 = s1;
   this.s2 = s2;
   this.s3 = s3;
}
   public String display3() {
       return s3;
   }

   public String display2() {
       return s2;
   }

   public String display1() {
       return s1;
   }

   public void display() {
       System.out.println("组装好了！");
       System.out.println("CPU:"+display1());
       System.out.println("硬盘:"+display2());
       System.out.println("内存:"+display3());
   }
}

//CPU接口

public interface CPU {//CPU接口
public abstract String display1();
}

//RAM接口

public interface RAM {//内存接口
public abstract String display2();
}

//ROM接口

public interface ROM {//硬盘接口
public abstract String display3();
}

【Java】实验三 多态与接口

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【Java】实验三多态与接口