用java实现生产和消费

class Res

{

         privateString name;

         privateint count=1;

         privateboolean flag=false;

         publicsynchronized void set(String name)

         {

                   while(true)

                   {

                   while(flag)

                   {

                            try

                            {

                                     this.wait();

                            }

                            catch(Exceptione)

                            {

                            }

                   }

                   this.name=name+"---"+count++;

                   System.out.println(Thread.currentThread().getName()+"生产者..."+this.name);

                   flag=true;

                   this.notifyAll();

         }

         }

         publicsynchronized void get()

         {

                   while(true)

                   {

                   while(!flag)

                   {

                            try

                            {

                                     this.wait();

                            }

                            catch(Exceptione)

                            {

                            }

                   }

                  

                           

                   System.out.println(Thread.currentThread().getName()+"消费者.........."+this.name);

                   flag=false;

                   this.notifyAll();

         }

         }

}

class Pro implements Runnable

{

         Resr;

         Pro(Resr)

         {

                   this.r=r;

         }

         publicvoid run()

         {

                   r.set("商品");

         }

}

class Cos implements Runnable

{

         Resr;

         Cos(Resr)

         {

                   this.r=r;

         }

         publicvoid run()

         {

                   r.get();

         }

}

public class Demo

{

         publicstatic void main(String args[])

         {

                   Resr=new Res();

                   Prop=new Pro(r);

                   Cosc=new Cos(r);

                   Threadt1=new Thread(p);

                   Threadt2=new Thread(p);

                   Threadt3=new Thread(c);

                   Threadt4=new Thread(c);

                   t1.start();

                   t2.start();

                   t3.start();

                   t4.start();

         }

}