public class ccuyw {
    public static void main(String[] args) {
        Phone w=new Phone();
        fabricate f=new fabricate(w);
        f.produce();


    }
}
//代理访问类，进行一些控制。
class fabricate implements Workshop{
    private Phone phone;
    public fabricate(){}
    public  fabricate(Phone workshop){
        this.phone=workshop;
    }
    public void produce(){
        long s=System.currentTimeMillis();
        phone.produce();//本体类正在运行
        long s1=System.currentTimeMillis();
        System.out.println("耗时"+(s1-s)+"毫秒");
    }
}
//接口
interface Workshop{
    public void produce();
}
//本体类
class Phone implements Workshop{
    @Override
    public void produce() {
        for (int i=0;i<1000;i++) {
            System.out.println("生产手机..................");
        }
    }
}