Question

I am new in java. Can someone help me why it is not calling Run method.
Thanks in advance.

package com.blt;

public class ThreadExample implements Runnable {
    public static void main(String args[])
    {       

        System.out.println("A");
        Thread T=new Thread();
        System.out.println("B");
        T.setName("Hello");
        System.out.println("C");
        T.start();
        System.out.println("D");
    }

public void run()
{
    System.out.println("Inside run");

}
}

Answer 1

You need to pass an instance of ThreadExample to the Thread constructor, to tell the new thread what to run:

Thread t = new Thread(new ThreadExample());
t.start();

(It’s unfortunate that the Thread class has been poorly designed in various ways. It would be more helpful if it didn’t have a run() method itself, but did force you to pass a Runnable into the constructor. Then you’d have found the problem at compile-time.)