public class SynCode implements Runnable{public void run(){synchronized (this){Thread current=Thread.currentThread();//获取当前线程for(int i=1;i<10;i++){System.out.println( "当前执行代码块的名称为" +current.getName());try {Thread.sleep( 1000 );}catch (InterruptedException e){e.printStackTrace();}}}}
}

测试类

//同步代码块
public class test108 {public static void main(String[] args){SynCode synCode=new SynCode();Thread t0=new Thread( synCode,"歌谣" );Thread t1=new Thread(  synCode,"东方不败");Thread t2=new Thread( synCode ,"火运");t2.setPriority( Thread.MAX_PRIORITY );t2.start();t1.start();t0.start();}
}

运行结果