Code example for ReentrantLock

Methods: tryLock, unlock

0
package chne.thread.demo; 
 
import java.util.concurrent.TimeUnit; 
import java.util.concurrent.locks.ReentrantLock; 
 
public class AttemptLocking { 
	private ReentrantLock lock=new ReentrantLock();
	public void untimted(){ 
		boolean captured=lock.tryLock();
		try{ 
			System.out.println("tryLock():"+captured);
		}finally{ 
			if(captured)
				lock.unlock();
		} 
	} 
	 
	public void timed(){ 
		boolean captured=false;
		try{ 
			captured=lock.tryLock(2, TimeUnit.SECONDS);
		}catch(InterruptedException e){
			throw new RuntimeException(e);
		} 
		try{ 
			System.out.println("tryLock(2,TimeUnit.SECONDS):"+captured);
		}finally{ 
			if(captured)
				lock.unlock();
		} 
	} 
	 
	public static void main(String[] args){
		final AttemptLocking al=new AttemptLocking();