How to use java's join to block threads

1. Description

belongs to the Thread class. The join method blocks the thread that calls this method. When trip a calls b.join(long) of thread b, thread a blocks until thread b completes.

2. Example

public class Demo {
    public static void main(String[] args) throws Exception {
       System.out.println("main start");
        Thread t1 = new Thread(() -> {
            System.out.println("t1 start");
            System.out.println("t1 end");
        });
        t1.start();
        t1.join();
        System.out.println("main end");
    }
}

The above is the detailed content of How to use java's join to block threads. For more information, please follow other related articles on the PHP Chinese website!