Java Thread get and set thread information

import java.lang.Thread.State;

public class Main {
  public static void main(String[] args) {
    // Thread priority infomation
    System.out.printf("Minimum Priority: %s\n", Thread.MIN_PRIORITY);
    System.out.printf("Normal Priority: %s\n", Thread.NORM_PRIORITY);
    System.out.printf("Maximun Priority: %s\n", Thread.MAX_PRIORITY);

    Thread threads[];// www.j  a  va 2s . c om
    Thread.State status[];

    // Launch 10 threads to do the operation, 5 with the max
    // priority, 5 with the min
    threads = new Thread[10];
    status = new Thread.State[10];
    for (int i = 0; i < 10; i++) {
      threads[i] = new Thread(new Calculator(i));
      if ((i % 2) == 0) {
        threads[i].setPriority(Thread.MAX_PRIORITY);
      } else {
        threads[i].setPriority(Thread.MIN_PRIORITY);
      }
      threads[i].setName("Thread " + i);
    }

    for (int i = 0; i < 10; i++) {
      System.out.println("Main : Status of Thread " + i + " : " + threads[i].getState());
      status[i] = threads[i].getState();
    }

    for (int i = 0; i < 10; i++) {
      threads[i].start();
    }

    boolean finish = false;
    while (!finish) {
      for (int i = 0; i < 10; i++) {
        if (threads[i].getState() != status[i]) {
          writeThreadInfo(threads[i], status[i]);
          status[i] = threads[i].getState();
        }
      }

      finish = true;
      for (int i = 0; i < 10; i++) {
        finish = finish && (threads[i].getState() == State.TERMINATED);
      }
    }

  }

  /**
   * This method writes the state of a thread in a file
   * 
   * @param thread
   *          : Thread whose information will be written
   * @param state
   *          : Old state of the thread
   */
  private static void writeThreadInfo(Thread thread, State state) {
    System.out.printf("Main : Id %d - %s\n", thread.getId(), thread.getName());
    System.out.printf("Main : Priority: %d\n", thread.getPriority());
    System.out.printf("Main : Old State: %s\n", state);
    System.out.printf("Main : New State: %s\n", thread.getState());
    System.out.printf("Main : ************************************\n");
  }

}

/**
 * This class prints the multiplication table of a number
 */
class Calculator implements Runnable {

  private int number;

  public Calculator(int number) {
    this.number = number;
  }

  /**
   * Method that do the calculations
   */
  @Override
  public void run() {
    for (int i = 1; i <= 10; i++) {
      System.out.printf("%s: %d * %d = %d\n", Thread.currentThread().getName(), number, i, i * number);
    }
  }

}