Runtime.addShutdownHook()使用

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主要用来在JVM关闭前，执行一些自定义操作。

public class Test {/** * @param args */public static void main(String[] args) {Runtime.getRuntime().addShutdownHook(t6);t1.start();t2.start();t3.start();t4.start();t5.start();}private static Thread t1 = new Thread() {public void run() {System.out.println("thread1...");}};private static Thread t2 = new Thread() {public void run() {System.out.println("thread2...");}};private static Thread t3 = new Thread() {public void run() {System.out.println("thread3...");}};private static Thread t4 = new Thread() {public void run() {System.out.println("thread4...");}};private static Thread t5 = new Thread() {public void run() {System.out.println("thread5...");}};private static Thread t6 = new Thread() {public void run() {System.out.println("thread6...");}};}

执行结果：

thread2...
thread1...
thread3...
thread4...
thread5...
thread6... // thread6总在最后执行