How can thread run after main method closes?

Question

Here are my two classes:

public class Firstclass {
    public static void main(String args[]) throws InterruptedException {
        System.out.println(\"Main sta         


        

Answer 1

Your main thread is not closed -

      // ...
      System.out.println("Main close...");
      // <--- Your main method is here while all the other threads complete (sort of).
     }

On part 2 of your question - There is no connection between join and synchronized. They are almost opposite.

• join - Wait for the thread to complete before resuming.
• synchronized - Only one thread can enter here, all others must wait.