java作业2017 11 10

题目要求

分别创建四个类

CPU

public class CPU {int speed;int getSpeed(){return speed;}void setSpeed(int speed){this.speed=speed;}}

HardDisk

public class HardDisk {int amount;int getAmount(){return amount;}void setAmount(int amount){this.amount=amount;}}

PC

public class PC {CPU cpu;HardDisk HDD;void setCPU(CPU cpu){this.cpu=cpu;}void setHardDisk(HardDisk HDD){this.HDD=HDD;}void show(){System.out.println("CPU RUNNING SPEED:"+cpu.getSpeed());System.out.println("HardDisk RUNNING SPEED:"+HDD.getAmount());}}

最后主类test

public class Test{public static void main(String args[]){CPU cpu=new CPU();HardDisk HDD=new HardDisk();PC pc=new PC();cpu.setSpeed(2200);HDD.setAmount(200);pc.setCPU(cpu);pc.setHardDisk(HDD);pc.show();}}

效果图--------------------------