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  • Java-马士兵设计模式学习笔记-观察者模式-OOD 封装event

    把小孩醒来时的具体情况封装成事件类

    Test.java

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    class WakenUpEvent{
         
        private long time;
        private String location;
        private Child source;
         
        public WakenUpEvent(long time, String location, Child source) {
            super();
            this.time = time;
            this.location = location;
            this.source = source;
        }
     
        public long getTime() {
            return time;
        }
     
        public void setTime(long time) {
            this.time = time;
        }
     
        public String getLocation() {
            return location;
        }
     
        public void setLocation(String location) {
            this.location = location;
        }
     
        public Child getSource() {
            return source;
        }
     
        public void setSource(Child source) {
            this.source = source;
        }
         
         
    }
     
    class Child implements Runnable {
         
        private Dad dad;
         
        public Child(Dad dad) {
            this.dad = dad;
        }
     
        public void wakeUp(){
            dad.actionToWakenUp(new WakenUpEvent(System.currentTimeMillis(), "bed", this));
        }
     
        @Override
        public void run() {
            try {
                Thread.sleep(3000);
            } catch (Exception e) {
                e.printStackTrace();
            }
            wakeUp();
        }
    }
     
    class Dad {
     
        public void actionToWakenUp(WakenUpEvent e) {
            System.out.println(e.getTime());
            System.out.println(e.getLocation());
            System.out.println(e.getSource());
            System.out.println("Fedd the child");
        }
         
    }
     
    public class Test {
     
        public static void main(String[] args) {
            Dad d = new Dad();
            Child c = new Child(d);
            new Thread(c).start();
        }
    }

      

    运行结果:

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  • 原文地址:https://www.cnblogs.com/jpfss/p/9233552.html
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