import java.io.IOException;

public class TryThread extends Thread {
  public TryThread(String firstName, String secondName, long delay) {
    this.firstName = firstName;                                        // Store the first name
    this.secondName = secondName;                                      // Store the second name
    aWhile = delay;                                                    // Store the delay
    setDaemon(true);                                                   // Thread is daemon
  }

  public static void main(String[] args) {
    // Create three threads
    Thread first = new TryThread("Hopalong ", "Cassidy ", 200L);
    Thread second = new TryThread("Marilyn ", "Monroe ", 300L);
    Thread third = new TryThread("Slim ", "Pickens ", 500L);

    System.out.println("Press Enter when you have had enough...\n");
    first.start();                                                     // Start the first thread
    second.start();                                                    // Start the second thread
    third.start();                                                     // Start the third thread

    try {
      System.in.read();                                                // Wait until Enter key pressed
      System.out.println("Enter pressed...\n");

    } catch (IOException e) {                                          // Handle IO exception
      System.err.println(e);                                           // Output the exception
    }
    System.out.println("Ending main()");
    return;
  }

  // Method where thread execution will start
  @Override
  public void run() {
    try {
      while(true) {                                                    // Loop indefinitely...
        System.out.print(firstName);                                   // Output first name
        sleep(aWhile);                                                 // Wait aWhile msec.
        System.out.print(secondName + "\n");                           // Output second name
      }
    } catch(InterruptedException e) {                                  // Handle thread interruption
      System.out.println(firstName + secondName + e);                  // Output the exception
    }
  }

  private String firstName;                                            // Store for first name
  private String secondName;                                           // Store for second name
  private long aWhile;                                                 // Delay in milliseconds
}