3.线程对象

获取当前线程对象方法

Thread.currentThread()

主线程也可以获取

public class Demo02CurrentThread {
    public static void main(String[] args) {
        new Thread() {
            @Override
            public void run() {
                System.out.println(getName() + "子线程：new Thread()");
            }
        }.start();
        new Thread(new Runnable() {
            @Override
            public void run() {
                //Thread.currentThread()获取当前正在执行的线程
                System.out.println(Thread.currentThread().getName() + "子线程：new Runnable()");
            }
        }).start();
        Thread.currentThread().setName("我是主线程");
        System.out.println(Thread.currentThread().getName());
    }
}