class Oppgave implements Runnable{

  private int id;

  public Oppgave(int id){
    this.id = id;
  }

  @Override
  public void run(){

    for(int i = 0; i < 5; i++){

      try{
        Thread.sleep(1000);
      }
      catch(InterruptedException e){
        e.printStackTrace();
      }

      System.out.println("Id " + id + ": " + i);
    }

  }

}