javaSE之多线程查看状态

//观察线程状态
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){
    
    
            //只要线程不终止就一直输出状态
            Thread.sleep(100);
            state = thread.getState();
            System.out.println(state);
        }
    }
}