对象的识别和对象的交互

 private int value = 0;
        private int limit = 0;

        public Display(int limit){
            this.limit=limit;
        }
        public void increase(){
            value++;
            if (value==limit){
                value=0;
            }
        }
        public int getValue(){
            return value;
        }

        public static void main(String[] args) {
            Display d = new Display(24);
            for (;;){
                d.increase();
                System.out.println(d.getValue());
            }
        }

让时间到24的时候变成0

无限循环

 

 

对象的交互

 

用一个类的两个对象构造了另外一个类，在另外一个类里面有两个别的类的对象

        private Display hour = new Display(24);
        private Display minute = new Display(60);

        private void start(){
            while (true){
                minute.increase();
                if (minute.getValue()==0){
                    hour.increase();
                }
                System.out.printf("%02d:%02d\n" , hour.getValue(), minute.getValue());
            }
        }

        public static void main(String[] args) {
            Clock clock = new Clock();
            clock.start();
        }

 

 

 

标签：对象,private,public,getValue,limit,value,识别,交互,Display
来源： https://www.cnblogs.com/yuzong/p/16398115.html