threadsynchronizdemo6.java

JAVA的一些基础教程

public class ThreadSynchronizDemo6 extends Thread{
	private Object lock;
	public void 写文件(String 内容){
		synchronized(lock){
			System.out.println("获取lock对象:"+ lock + "的锁");
			System.out.println("进入写文件函数的线程:"+ Thread.currentThread().getName());
				try{
					Thread.sleep(1000*5);
					System.out.println("线程:"+ Thread.currentThread().getName() + " 休息了5秒");
				}catch(Exception e){}
				for(int i=0; i< 内容.length(); i++)
					System.out.print(内容.charAt(i));
			System.out.println("\n退出写文件函数的线程:"+ Thread.currentThread().getName() );
			System.out.println("释放lock对象:"+ lock+ "的锁\n");
		}
	}
	
	public ThreadSynchronizDemo6(String s , Object lock){
		super(s);
		this.lock = lock;
	}

	public void run(){
		写文件("学JAVA其实是件很容易的事，只要你用心学，花时间");
	}

	public static void main(String arg[]){
		Object a = new Object();
		ThreadSynchronizDemo6 线程A = new ThreadSynchronizDemo6("线程A",a);
		ThreadSynchronizDemo6 线程B = new ThreadSynchronizDemo6("线程B",a);
		线程A.start();
		线程B.start();
	}
}