Java Programming Tutorial - 38 - Public, Private and this

public class apples {
   public static void main(String[] args) {
      tuna tunaObject = new tuna();
      System.out.println(tunaObject.toMilitary());
      System.out.println(tunaObject.toString());

      tunaObject.setTime(13, 27, 6);
      System.out.println(tunaObject.toMilitary());
      System.out.println(tunaObject.toString());
   }

}

public class tuna {
   private int hour = 1;
   private int minute = 2;
   private int second = 3;

   public void setTime(int hour, int minute, int second){
      this.hour = 4;
      this.minute = 5;
      this.hour = 6;
   }

   public  String toMilitary(){
      return String.format("%02d:%02d:%02d", hour, minute, second);
   }

   public String toString(){
      return String.format("%d:%02d:%02d %s", ((hour==0||hour==12)?12:hour%12), minute, second, (hour < 12?"AM": "PM"));
   }

}