Instatiate a thread by implementing Runnable interface @Jobilize

Author: Yasser Ibrahim

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Question 170 / 297: How many times the statement "we are painting" would be printed in this program?

public class Test{
	
	public static void main(String[] args) {

		Painter painter1 = new Painter();
		painter1.start();
		
		Painter painter2 = new Painter();
		painter2.start();

	}
}

class Painter implements Runnable {

	public void run() {
		System.out.println("we are painting");
	}
}

A two times

B zero times

C the program will not compile

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Explanation:

Instantiating from a class that implements Runnable is not enough to create a Thread object. You still to create a Thread object need to invoke a Thread constructor passing to it this Runnable object. Therefore invoking start() on a Runnable object is incorrect and causes compilation error.

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