多线程Thread和Runnable JAVA多线程Thread和Runnable的实现
人气:0java中只允许单一继承,但允许实现多个接口,因此第二种方法更灵活。
/**
* 运行继承java.lang.Thread类定义的线程
*/
public void startOne() {
// 创建实例
OneThread oneThread = new OneThread();
// 启动线程ThreadA
oneThread.startThreadA();
try {
// 设置线程休眠1秒
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
// 停止线程,此处为什么不用stop()方法,因为该方法已经废弃,但可以用在死锁。
oneThread.stopThreadA();
}
/**
* 运行实现Runnable接口定义的线程
*/
public void startTwo() {
// 创建实例
Runnable runnable = new TwoThread();
// 将实例放入到线程中
Thread threadB = new Thread(runnable);
// 启动线程
threadB.start();
}
// 继承Thread类定义线程
class OneThread extends Thread {
private boolean running = false;
public void start() {
this.running = true;
super.start();
}
public void run() {
int i = 0;
try {
while (running) {
System.out.println("继承Thread类定义线程程序体......" + i++);
Thread.sleep(200);
}
} catch (InterruptedException e) {
e.printStackTrace();
}
}
public void startThreadA() {
System.out.println("启动继承Thread类定义线程");
this.start();
}
public void stopThreadA() {
System.out.println("关闭继承Thread类定义线程");
this.running = false;
}
}
// 实现Runnable接口定义线程
class TwoThread implements Runnable {
private Date runDate;
public void run() {
System.out.println("实现Runnable接口定义线程程序体......");
this.runDate = new Date();
System.out.println("线程启动时间......" + runDate);
}
public static void main(String[] args) {
// 实例化对象
ThreadStartAndStop threadStartAndStop = new ThreadStartAndStop();
threadStartAndStop.startOne();
threadStartAndStop.startTwo();
}
启动继承Thread类定义线程
继承Thread类定义线程程序体......0
继承Thread类定义线程程序体......1
继承Thread类定义线程程序体......2
继承Thread类定义线程程序体......3
继承Thread类定义线程程序体......4
关闭继承Thread类定义线程
实现Runnable接口定义线程程序体......
线程启动时间......Fri Mar 15 12:56:57 CST 2013
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