线程状态

package com.thread;

// 观察测试线程的状态
public class TestState {

    public static void main(String[] args) throws InterruptedException {
        Thread thread = new Thread(()->{
            for (int i = 0; i < 5; i++) {
                try {
                    Thread.sleep(1000);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
            System.out.println("🍎🍌🍐🍇🍉");
        });

        // 观察状态
        Thread.State state = thread.getState();
        System.out.println(state); // new

        // 观察启动后
        thread.start();
        state = thread.getState();
        System.out.println(state); // run


        while (state != Thread.State.TERMINATED){
            Thread.sleep(100);
            state = thread.getState(); //更新线程状态
            System.out.println(state);
        }

    }
}