21.
What will be output of the following program code?
public class Test implements Runnable{
      public void run(){
            System.out.print("go");
      }
    
      public static void main(String arg[]) {
            Thread t = new Thread(new Test());
            t.run();
            t.run();
            t.start();
      }
}

22.
Given the code. What will be the result?
public class Test implements Runnable{
      public static void main(String[] args) throws InterruptedException{
            Thread a = new Thread(new Test());
            a.start();
        
            System.out.print("Begin");
            a.join();
            System.out.print("End");
      }
    
      public void run(){
            System.out.print("Run");
      }
}