线程问题

线程锁为threadNo，每个线程threadNo唯一，达不到互斥最后资源recources不能同步

package len_server;public class ThreadTest2 extends Thread {  	private  String threadNo;	private  String lock;   	private static int recources=100;//需要同步的资源对象    	public ThreadTest2(String threadNo,String lock) {   		this.threadNo = threadNo;  		this.lock=lock;	}   		public static void main(String[] args) throws InterruptedException {		for (int i = 1; i <=3; i++) {   			ThreadTest2 t=new ThreadTest2(String.valueOf(i),"abc");		    t.start();   		 }		sleep(2000);		System.out.println("=================================");		System.out.println(recources);//打印结果	}       public void run() {    	    	synchronized (this.getThreadNo()) {    		int flag=recources;  //模拟查询余额    		try {				sleep(500);			} catch (InterruptedException e) {				e.printStackTrace();			}    		recources=flag+1;//模拟存款		}    	    }        	public String getThreadNo() {		return threadNo;	}	public void setThreadNo(String threadNo) {		this.threadNo = threadNo;	}	public String getLock() {		return lock;	}	public void setLock(String lock) {		this.lock = lock;	}}

线程锁为lock，每个线程的lock相同，也就是锁对象相同能实现资源同步

package len_server;public class ThreadTest2 extends Thread {  	private  String threadNo;	private  String lock;   	private static int recources=100;//需要同步的资源对象    	public ThreadTest2(String threadNo,String lock) {   		this.threadNo = threadNo;  		this.lock=lock;	}   		public static void main(String[] args) throws InterruptedException {		for (int i = 1; i <=3; i++) {   			ThreadTest2 t=new ThreadTest2(String.valueOf(i),"abc");		    t.start();   		 }		sleep(2000);		System.out.println("=================================");		System.out.println(recources);//打印结果	}       public void run() {    	    	synchronized (this.getLock()) {    		int flag=recources;  //模拟查询余额    		try {				sleep(500);			} catch (InterruptedException e) {				e.printStackTrace();			}    		recources=flag+1;//模拟存款		}    	    }        	public String getThreadNo() {		return threadNo;	}	public void setThreadNo(String threadNo) {		this.threadNo = threadNo;	}	public String getLock() {		return lock;	}	public void setLock(String lock) {		this.lock = lock;	}}

猜猜分别输出结果？