Can java thread invoke start more than once Yasser Ibrahim @Jobilize

Author: Yasser Ibrahim

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Question 92 / 297: What is the result of compiling and running the following code?

public class Tester extends Thread {

	public void run() {
		System.out.print("run");
	}

	public static void main(String[] args) {

		Tester thread = new Tester();

		new Thread(thread).start();

		new Thread(thread).start();

	}
}

A Compilation error, can't invoke start() twice

B runrun

C IllegalThreadStateException will be thrown because of the second invoke to start()

D run

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Explanation:

It seems that start() is invoked twice by the same thread, but what happening is that we are instantiating and starting two different threads.

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