Java笔记15：多线程

2024-09-26 22:00:34

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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