//互斥锁的用法,类似java中的synchronized用法 public class LockTest { /** * @param args */ public static void main(String[] args) { new LockTest().init(); } private void init(){ final Outputer outputer = new Outputer(); new Thread(new Runnable(){ @Override public void run() { while(true){ try { Thread.sleep(10); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); } outputer.output("lllddd"); } } }).start(); new Thread(new Runnable(){ @Override public void run() { while(true){ try { Thread.sleep(10); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); } outputer.output("qqqqlll"); } } }).start(); } static class Outputer{ Lock lock = new ReentrantLock(); public void output(String name){ int len = name.length(); lock.lock(); try{ for(int i=0;i<len;i++){ System.out.print(name.charAt(i)); } System.out.println(); }finally{ lock.unlock(); } } } }