测试java程序时，尽可能使用-server（win上）选项，其他平台使用类似选

[java]代码库

public class Visibility {
	private  static boolean stop;
	
	public static void main(String[] args) throws Exception {
		new Thread(new Runnable(){
			public void run() {
				int i = 0;
				while(!stop) {
					i++;
				}
				System.out.println("finish loop,i=" + i);
			}
		}).start();
		
		
		Thread.sleep(1000);
		stop = true;
		Thread.sleep(2000);
		System.out.println("finish main");
	}
}//源代码片段来自云代码http://yuncode.net