Java Multi-Threading and concurrency--a case of producer and consumer applications

Multi-threaded development has one of the most classic operating cases, that is, producers-consumers, producers continue to produce products, consumers continue to take away products.

 Packagecom.vince;/*** Producer and Consumer cases *@authorAdministrator **/ Public classThreadDemo4 { Public Static voidMain (string[] args) {//TODO Auto-generated method stubsFood food=NewFood (); Producter P=Newproducter (food); Customer C=NewCustomer (food); Thread T1=NewThread (P); Thread T2=NewThread (c);        T1.start ();    T2.start (); }}//producersclassProducterImplementsrunnable{PrivateFood and food ;  Publicproducter (food food) { This. food=Food ; } @Override Public voidrun () {//TODO Auto-generated method stubs         for(inti=0;i<50;i++){            if(i%2==0){                /*food.setname ("Tremella lotus Soup");                try {thread.sleep (500);                } catch (Interruptedexception e) {//TODO auto-generated catch block E.printstacktrace (); } food.setefficasy ("Beauty Facial");*/Food.set ("White fungus and lotus seed soup", "Beauty Facial"); }Else{                /*food.setname ("Boiled sliced meat");                try {thread.sleep (500);                } catch (Interruptedexception e) {//TODO auto-generated catch block E.printstacktrace (); } food.setefficasy ("fattening");*/Food.set ("Boiled sliced Meat", "fattening"); }        }    }    }//ConsumerclassCustomerImplementsrunnable{PrivateFood and food ;  PublicCustomer (food) { This. food=Food ; } @Override Public voidrun () {//TODO Auto-generated method stubs         for(inti=0;i<50;i++) {food.get (); }    }    }//object of consumption (data)classfood{PrivateString name;//Dish name    PrivateString Efficasy;//Efficacy        Private Booleanflag=true;//True indicates that production cannot be consumed and false means that it can consume     PublicString GetName () {returnname; }     Public voidsetName (String name) { This. Name =name; }     PublicString Getefficasy () {returnEfficasy; }     Public voidSetefficasy (String efficasy) { This. Efficasy =Efficasy; }     PublicFood (string name, String efficasy) {Super();  This. Name =name;  This. Efficasy =Efficasy; }     PublicFood () {Super(); //TODO Auto-generated constructor stub    }    //Production Products     Public synchronized voidSet (String name,string efficasy) {//indicates inability to produce        if(!flag) {            Try {                 This. Wait ();//The current thread enters the wait state, yields the CPU, and releases the lock on the monitor. }Catch(interruptedexception e) {//TODO Auto-generated catch blockE.printstacktrace (); }        }         This. SetName (name); Try{Thread.Sleep (500); } Catch(interruptedexception e) {//TODO Auto-generated catch blockE.printstacktrace (); }         This. Setefficasy (Efficasy); Flag=false;//indicates no further production         This. Notify ();//Wake up one of the other threads on the monitor    }     Public synchronized voidget () {if(flag) {Try {                 This. Wait (); } Catch(interruptedexception e) {//TODO Auto-generated catch blockE.printstacktrace (); }        }                Try{Thread.Sleep (500); } Catch(interruptedexception e) {//TODO Auto-generated catch blockE.printstacktrace (); } System.out.println ( This. GetName () + "+" + This. Getefficasy ()); Flag=true;//It means no more spending .         This. Notify ();//Wake up one of the other threads on the monitor    }}

Java Multi-Threading and concurrency--a case of producer and consumer applications