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Select the correct answerWhat is the output of the following program?public class Test extends Thread implements Runnable{  public void run()  {    System.out.printf("CT ");  }  public static void main(String[] args) throws InterruptedException  {    Test obj = new Test();    obj.run();    obj.start();  }}OptionsRuntime errorCompilation errorCT CTNone of the above

Question

Select the correct answerWhat is the output of the following program?public class Test extends Thread implements Runnable{  public void run()  {    System.out.printf("CT ");  }  public static void main(String[] args) throws InterruptedException  {    Test obj = new Test();    obj.run();    obj.start();  }}OptionsRuntime errorCompilation errorCT CTNone of the above

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Solution

The correct answer is "CT CT".

Here's the step-by-step explanation:

  1. The Test class extends the Thread class and implements the Runnable interface. Both Thread class and Runnable interface have a method called run(). In this case, the run() method is overridden to print "CT ".

  2. In the main method, an object of the Test class is created.

  3. The run() method is called on the object, which prints "CT ".

  4. The start() method is called on the object. The start() method in turn calls the run() method, which prints "CT " again.

So, the output of the program is "CT CT".

This problem has been solved

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