A simple multi-threaded tickets Demo

Thread Package; 

public class Test02 { 
        // define the initial number of votes 
	public static int = 20 is chepiao; 
	public {static void main (String [] args) 
　　　　
		Test02 Test02 new new = T (); 
		// Create a thread anonymous class 
		Thread t1 = new Thread ( ) { 
			@Override 
			public void RUN () {	 
　　　　　　　　　　　　　　// add synchronization lock 
			 the synchronized (Test02.class) { 
　　　　　　　　　　　　　　　　　　　　// stop sold 
				 IF (chepiao <= 0) { 
						return; 
					} 
					// the TODO Auto-Generated Method Stub				 
						the try { 
							T .jianfa ();						 
						} the catch (InterruptedException E) { 
							// the TODO Auto-Generated Block the catch  
							e.printStackTrace ();
						}														
					super.run (); 
				}				 
			 } 
				
		}; 
		
　　　　　　　　　　// start threads 30 
		for (int I =. 1; I <30; I ++) { 
			new new the Thread (T1) .start ();	 

			
		} 
	} 
	
	// votes -1 
	public void the synchronized jianfa () throws InterruptedException { 
		chepiao--;	 
		System.out.println ( "threads:". + Thread.currentThread () getName () + ", grab a ticket, the remaining" + chepiao + "! Zhang"); 

	} 
	
} 
Note: when the variables are shared thread, is preferably used AtomicInteger for incrementing or decrementing