Java Multithreading for natural Synchronization (demo case included)

1. Prepare a producer class:

 Public classProducerextendsthread{PrivateString name; PrivateMarket Mkt; Static intcount;  PublicProducer (String name, Market mkt) {Super(name);  This. Mkt =Mkt; } @Override Public voidrun () { This. Name =Thread.CurrentThread (). GetName (); SYSTEM.OUT.PRINTLN (Name+ "started production! ");  for(inti = 0; I < 5; i++) {            Try{Thread.Sleep (Long) (2000*math.random ())); } Catch(interruptedexception e) {e.printstacktrace (); } Count++; String Goods= "Goods" +count;        Mkt.set (goods); } System.out.println (Name+ "Production finished! "); }}

2. Prepare a consumer class:

 Public classConsumerextendsthread{PrivateString name; PrivateMarket Mkt;  PublicConsumer (String name,market mkt) {Super(name);  This. Mkt =Mkt; } @Override Public voidrun () { This. Name =Thread.CurrentThread (). GetName (); SYSTEM.OUT.PRINTLN (Name+ "Start spending!" "); StringBuilder SB=NewStringBuilder ();  for(inti = 0; I < 10; i++) {            Try{Thread.Sleep (Long) (2000*math.random ())); } Catch(interruptedexception e) {e.printstacktrace (); } String ShoppingCart=Mkt.get (); Sb.append (ShoppingCart). Append (" | "); } System.out.println (Name+ "Consumer shopping completed, the purchase list is as follows:"); System.out.println ("\ T" +SB); }}

3. Prepare a shopping arcade class:

 Public classMarket {PrivateString Shelf; Private BooleanFlag;  Public synchronized voidset (String goods) {string name=Thread.CurrentThread (). GetName ();  while(flag) {Try{System.out.println (name+ "try to buy goods but the shelves are full, please wait for consumption!" ");  This. Wait (); } Catch(interruptedexception e) {e.printstacktrace (); }        }         This. Shelf =goods;  This. Flag =true; SYSTEM.OUT.PRINTLN (Name+ "+goods+" has been put on the goods, can be consumed! ");  This. Notify (); }         Public synchronizedstring Get () {string name=Thread.CurrentThread (). GetName ();  while(!flag) {SYSTEM.OUT.PRINTLN (name+ "trying to shop, but shelves are empty, please wait for the goods!" "); Try {                 This. Wait (); } Catch(interruptedexception e) {e.printstacktrace (); }} String ShoppingCart=Shelf;  This. Shelf =NULL;  This. Flag =false; SYSTEM.OUT.PRINTLN (Name+ "purchased a" +shoppingcart+ "! ");  This. Notify (); returnShoppingCart; }}

4. Test class:

 Public class Start {    publicstaticvoid  main (string[] args) {        new Market ();         New Producer ("Worker 1", mkt);         New Producer ("Worker 2", mkt);         New Consumer ("Customer", mkt);        P2.start ();        C.start ();        P1.start ();    }}

Java Multithreading for natural Synchronization (demo case included)