Java Multithreaded shared variables

Import Java.util.linkedlist;import Java.util.list;import Java.util.concurrent.locks.condition;import Java.util.concurrent.locks.lock;import Java.util.concurrent.locks.reentrantlock;public class PC {private static Final lock lock = new Reentrantlock ();p rivate static final Condition empty = Lock.newcondition ();p rivate static final Cond ition full = lock.newcondition ();p rivate static final list<integer> List = new linkedlist<> ();p rivate static I  NT size = 0;private static int maxSize = 5;private static int product = 1;public static void put () {lock.lock (); try {while (size = = maxSize) {empty.await ();} List.add (product); size++; System.out.println ("put" + product);p roduct++;full.signal ();} catch (Interruptedexception e) {e.printstacktrace ();} finally {Lock.unlock ();}} public static void Take () {lock.lock (); try {while (size = = 0) {full.await ();} int tep = list.remove (0); size--; System.out.println ("take" + Tep); empty.signal ();} catch (Interruptedexception e) {e.printstacktrace ();} finally {Lock.unlock ();}} Class Producer implements Runnable {@Overridepublic void Run () {for (int i = 1; i <; i++) {put (); try {thread.sleep (1 00);} catch (Interruptedexception e) {e.printstacktrace ();}}}} Class Consumer implements Runnable {@Overridepublic void Run () {for (int i = 1; i <, i++) {take (); try {thread.sleep ( 1000);} catch (Interruptedexception e) {e.printstacktrace ();}}}} public static void Main (string[] args) {pc PC = new PC (); new Thread (Pc.new Producer ()). Start (); New Thread (Pc.new Consumer ( ). Start (); New Thread (Pc.new Producer ()). Start (); New Thread (Pc.new Consumer ()). Start ();}}

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Java Multithreaded shared variables