Java笔记15：多线程

Java笔记15：多线程

Java实现多线程有两种方式：一是继承Thread类；二是实现Runable接口。

一、Thread实现

publicclass ThreadDemo2 { publicstaticvoid main(String[] args) { new TestThread2().start(); inti = 0; while(i++ < 100) { System.out.println("main thread is running"); } }} class TestThread2 extends Thread { publicvoid run() { intj = 0; while(j++ < 100) { System.out.println(Thread.currentThread().getName() + " is running!"); } }}

运行结果：

二、Runnable实现

publicclass ThreadDemo3 { publicstaticvoid main(String[] args) { TestThread3 t3 = new TestThread3(); Thread t = new Thread(t3); t.start(); inti = 0; while(i++ < 100) { System.out.println("main thread is running"); } }} class TestThread3 implements Runnable { publicvoid run() { intj = 0; while(j++ < 100) { System.out.println(Thread.currentThread().getName() + " is running!"); } }}

运行结果：

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