Question

In java with the netbeans program do:

Through object programming

Create a class "ContadorP", which is a thread that counts from 1 to 25. This thread must be terminated by receiving a "interrupt" signal and having a "+ setTime (int x): void" method that allows the user modify the millisecond interval between one number and the next. 

Answer 1

Here is the completed code for this problem. Comments are included, go through it, learn how things work and let me know if you have any doubts or if you need anything to change. If you are satisfied with the solution, please rate the answer. If not, PLEASE let me know before you rate, I’ll help you fix whatever issues. Thanks

//ContadorP.java

public class ContadorP extends Thread {

      // a flag denoting whether the thread is interrupted or not

      private boolean interupted = false;

      // delay between printing each number, in milliseconds

      private int delay = 100; // default value of 100ms

      // overriden run method

      @Override

      public void run() {

            // starting with i=1

            int i = 1;

            // looping until either the thread has printed all numbers from 1 to 25,

            // or the thread has been interrupted

            while (i <= 25 && !interupted) {

                  // printing i

                  System.out.println(i);

                  // pausing this thread for delay milliseconds

                  try {

                        sleep(delay);

                  } catch (InterruptedException e) {

                  }

                  // updating i for the next loop

                  i++;

            }

      }

      // overriden interrupt method, which sets the boolean flag to true, so that

      // the thread will be stopped automatically.

      @Override

      public void interrupt() {

            interupted = true;

      }

      // method to update the time delay

      public void setTime(int delay) {

            this.delay = delay;

      }

      // main method for testing. remove if you dont need this

      public static void main(String[] args) throws InterruptedException {

            // creating an object of ContadorP

            ContadorP t = new ContadorP();

            // using a delay of 1000ms or 1 second

            t.setTime(1000);

            // starting thread

            t.start();

            // pausing the main thread (not t) for 5 seconds

            Thread.sleep(5000);

            // interrupting thread t, so it will stop after 5 seconds.

            t.interrupt();

      }

}

/*OUTPUT*/

1

2

3

4

5