JAVA平時練習

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生產者與消費者：

 1 public class ProducerConsumer { 2     public static void main(String[] args) { 3         Basket bs=new Basket(); 4         Producer p=new Producer(bs); 5         Consumer stu1=new Consumer("張東",bs); 6         Consumer stu2=new Consumer("王強",bs); 7         Consumer stu3=new Consumer("趙璐",bs); 8         new Thread(p).start(); 9         new Thread(stu1).start();10         new Thread(stu2).start();11         new Thread(stu3).start();12     }13 }14 15 class ManTou {16     int id;17     ManTou(int id){18         this.id=id;19     }20     public String toString(){21         return  "第"+id+"個饅頭" ;22     }23 }24 25 class Basket {26     int index = 0;27     ManTou[] mt = new ManTou[10];28 29     public synchronized void push(ManTou ton) {30         while (index == mt.length) {31             try {32                 this.wait();33             } catch (InterruptedException e) {34                 e.printStackTrace();35             }36         }37         this.notifyAll();38         mt[index] = ton;39         index++;40     }41     public synchronized ManTou pop() {42         while (index == 0) {43             try {44                 this.wait();45             } catch (InterruptedException e) {46                 e.printStackTrace();47             }48         }49         this.notifyAll();50         index--;51         return mt[index];52     }53     54 }55 56 class Producer implements Runnable{57     Basket bs= null;58     Producer(Basket bs){59         this.bs=bs;60     }61     public void run(){62         for(int i=1;i<=15;i++){63             ManTou mt=new ManTou(i);64             bs.push(mt);65             System.out.println("李師傅生產了"+mt.toString());66             try{67                 Thread.sleep((int)(Math.random()*100));68             }catch(InterruptedException e){69                 e.printStackTrace();70             }71         }72     }73     74 }75 76 77 class Consumer implements Runnable{78     Basket bs= null;79     String name;80     Consumer(String stu,Basket bs){81         this.bs=bs;82         name=stu;83     }84     public void run(){85         for(int i=1;i<=5;i++){86             ManTou mt=bs.pop();87             System.out.println(name+"消費了"+mt.toString());88             try{89                 Thread.sleep((int)(Math.random()*1000));90             }catch(InterruptedException e){91                 e.printStackTrace();92             }93         }94     }95     96 }

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JAVA平時練習