Java练习题10

public class CPU {
	int speed;
	void setSpeed(int m)
	{
		speed=m;
	}
	int getSpeed()
	{
		return speed;
	}
}
public class HardDisk {
	int amount;
	void setAmount(int m)
	{
		amount=m;
	}
	int getAmount()
	{
		return amount;
	}
}
public class PC {
	CPU cpu;
	HardDisk HD;
	void setCPU(CPU c)
	{
		cpu=c;
	}
	void setHardDisk(HardDisk h)
	{
		HD=h;
	}
	void show()
	{
		System.out.println("cpu的速度为"+cpu.speed+"，硬盘的容量为"+HD.amount);
	}
}
public class Test10 {
	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();
	}

}