Simple implementation of producer-consumer model

Package Penalty for com.ring2.test; 

/ ** 
 * definition of a gun can only be filled with 20 bullets 
 * When the number is greater than 20 bullets, bullets producers to stop production, waiting to be awakened 
 * When a bullet is equal to 0, consumption to stop shooting bullets, waiting to be awakened 
 * 
 * / 
public  class Gun {
     Private  static  int bullet = 0 ;
     Private  static  int maxBullet = 20 ;
     Private  static String = Lock "at the Same, Object" ;
     static  class Provider the implements Runnable { 
        @Override 
        public  void RUN () {
             for ( int0 = I; I <20 is; I ++ ) {
                 the try { 
                    the Thread.sleep ( 1000 ); 
                } the catch (InterruptedException E) { 
                    e.printStackTrace (); 
                } 
                the synchronized (Lock) {
                     IF (bullet == maxBullet) {
                         the try { 
                            Lock .wait (); 
                            System.out.println ( "full bore, loading is stopped, waiting for a notification." ); 
                        } the catch (InterruptedException E) {  
                            e.printStackTrace ();
                        }
                    } 
                    Bullet ++ ; 
                    System.out.println (Thread.currentThread () getName (). + "A loading completed, the current number of cartridges is:" + bullet); 
                    Lock.notifyAll (); 
                } 
            } 
        } 
    } 

    static  class Consumer the implements the Runnable { 
        @Override 
        public  void RUN () {
             for ( int I = 0; I <20 is; I ++ ) {
                 the try { 
                    the Thread.sleep ( 1000); 
                } The catch (InterruptedException E) { 
                    e.printStackTrace (); 
                } 
                the synchronized (Lock) {
                     IF (bullet == 0 ) {
                         the try { 
                            Lock.wait (); 
                            System.out.println ( "number of bullets is empty and ready . bullet loaded " ); 
                        } the catch (InterruptedException E) { 
                            e.printStackTrace (); 
                        } 
                    } 
                    bullet - ;
                    System.out.println (Thread.currentThread () getName (). + "One shot is completed, the current number of cartridges is:" + bullet); 
                    Lock.notifyAll (); 
                } 

            } 
        } 
    } 
    public  static  void main (String [] args ) { 
        System.out.println ( "start thread" );
         new new the thread ( new new Provider ()) start. ();
         new new the thread ( new new Consumer ()) start ();. 
    } 
    }

Results of the:

Start threads 
the Thread -0 once loading is completed, the current number of bullets is: 1 
the Thread -1 complete a shot, the current number of bullets is: 0 
the Thread -0 once loading is completed, the current number of bullets is: 1 
the Thread -1 complete a shot, The current number of cartridges is: 0 
the Thread -0 complete a loading, the current number of cartridges is: 1 
number of cartridges is empty, waiting for loading bullets. 
The Thread -1 completion of one shot, to the current number of cartridges: 0 
the Thread -0 complete a loading, the current number of cartridges is:. 1 
the Thread -1 completion of one shot, to the current number of cartridges: 0 
the Thread -0 complete a loading current bullets an amount of:. 1 
the Thread -1 completion of one shot, to the current number of cartridges: 0 
the Thread -0 complete a loading, the current number of cartridges is:. 1 
the Thread -1 completion of one shot, to the current number of cartridges: 0 
the Thread -0 complete a package shells, the current number of cartridges: 1 
the Thread -1 completion of one shot, to the current number of cartridges: 0 
the Thread -0 complete a loading, the current number of cartridges is: 1 
number of cartridges is empty, waiting for loading bullets. 
Thread-1 completion of one shot, to the current number of cartridges: 0 
the Thread -0 complete a loading, the current number of cartridges is:. 1 
the Thread -1 completion of one shot, to the current number of cartridges: 0 
the Thread -0 complete a loading, the current number of cartridges is:. 1 
the Thread -1 completion of one shot, to the current number of cartridges: 0 
the Thread -0 complete a loading, the current number of cartridges is:. 1 
the Thread -1 completion of one shot, to the current number of cartridges: 0 
the Thread -0 complete a loading The current number of bullets: 1 
number of cartridges is empty, waiting for loading bullets. 
The Thread -1 completion of one shot, to the current number of cartridges: 0 
the Thread -0 complete a loading, the current number of cartridges is:. 1 
the Thread -1 completion of one shot, to the current number of cartridges: 0 
the Thread -0 complete a loading current bullets an amount of:. 1 
the Thread -1 completion of one shot, to the current number of cartridges: 0 
the Thread -0 complete a loading, the current number of cartridges is:. 1 
the Thread -1 completion of one shot, to the current number of cartridges: 0 
the Thread -0 complete a package shells, as the current number of cartridges:. 1 
the Thread-1 completion of one shot, to the current number of cartridges: 0 
the Thread -0 complete a loading, the current number of cartridges is: 1 
number of cartridges is empty, waiting for loading bullets. 
The Thread -1 completion of one shot, to the current number of cartridges: 0 
the Thread -0 complete a loading, the current number of cartridges is:. 1 
the Thread -1 completion of one shot, to the current number of cartridges: 0 
the Thread -0 complete a loading current bullets an amount of:. 1 
the Thread -1 completion of one shot, to the current number of cartridges: 0 
the Thread -0 complete a loading, the current number of cartridges is:. 1 
the Thread -1 completion of one shot, to the current number of cartridges: 0

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