计算机中CPU的速度和硬盘的容量

class CPU
{  
int speed;  
void setSpeed(int m)
{  
speed=m;  
}  
int getSpeed()
{  
return speed;  
}  
}  
           

class HardDisk{  
    int amount;  
    void setAmount(int m){  
    amount=m;  
    }  
    int getAmount(){  
    return amount;  
    }  
    }  
           

class PC{  
    CPU cpu;  
    HardDisk HD;  
    void setCPU(CPU c){  
    cpu=c;  
    }  
    void setHardDisk(HardDisk h){  
    HD=h;  
    }  
    void show(){  
    System.out.println("CPU速度:"+cpu.getSpeed());  
    System.out.print("硬盘容量:"+HD.getAmount());  
    }  
    }  
           

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