用类描述计算机CPU的速度和硬盘的容量
class PC{
CPU cpu;
HardDisk HD;
void setCPU(CPU c){
cpu=c;
};
void setHardDisk(HardDisk h){
HD=h;
};
void show(){
System.out.println("cpu的速度是:"+cpu.getSpeed());
System.out.println("硬盘的容量是:"+HD.getAmount());
};
}
class CPU{
int speed;
void setSpeed(int s){
speed=s;
};
int getSpeed(){
return speed;
};
}
class HardDisk{
int amount;
void setAmount(int m){
amount=m;
};
int getAmount(){
return amount;
};
}
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();
}
}
