Making program smaller

Question

sorry for making another post, but no one was responding to my last one, i think because my question was answered, and then later i added to it.
but yeah this is my code
public class Time4 {
     private int hour = 9;
     private int minute = 59;
     private int second = 55;
     private String twoDigits;
     private String twoDigits1;
     private String twoDigits2;
     private String am_pm = "AM";
     public int getHour() {
          return hour;
     public int getMinuite() {
          return minute;
     public int getSecond() {
          return second;
     public String getAM_PM() {
          return am_pm;
     public String getTwoDigits() {
               return twoDigits;
     public String getTwoDigits1() {
                    return twoDigits1;
     public String getTwoDigits2() {
                    return twoDigits2;
     public void setHour(int hour) {
          this.hour = hour;
     public void setMinute(int minute) {
          this.minute = minute;
     public void setSecond(int second) {
          this.second = second;
     public void setAM_PM(int am_pm) {
          this.am_pm = String.valueOf(am_pm); //the first problem was here
     }               //your need parse to String
     public void setTwoDigits(int twoDigits) {
               this.twoDigits = String.valueOf(twoDigits); //the first problem was here
          }               //your need parse to String
          public void setTwoDigits1(int twoDigits1) {
                         this.twoDigits1 = String.valueOf(twoDigits1); //the first problem was here
          public void setTwoDigits2(int twoDigits2) {
                         this.twoDigits2 = String.valueOf(twoDigits2); //the first problem was here
     public void tick() //the second problem was here
          this.second++;
          if (this.second == 60) {
               this.second = 0;
               this.minute++;
          if (this.minute == 60) {
               this.minute = 0;
               this.hour++;
          if (this.hour > 12) {
               this.hour = 1;
               this.minute = 0;
               this.second = 0;
               if (this.am_pm == "AM") {
                    this.am_pm = "PM";
               } else if (this.am_pm == "PM") {
                    this.am_pm = "AM";
     public void displayTime() // *********************************
     // public void showTime() // Accessor
          do {
               try {
                    Thread.sleep(1000);
               } catch (InterruptedException e) {
                    System.out.println("Sleep Interruption:" + e);
               for (int i = 0; i < 80; i++) {
                    System.out.println();
               tick();
               if (this.hour <10)
                    twoDigits = "0" + this.hour;
               else
                    twoDigits = "" + this.hour;
               if (this.minute <10)
                    twoDigits1 = "0" + this.minute;
               else
                    twoDigits1 = "" + this.minute;
               if (this.second <10)
                    twoDigits2 = "0" + this.second;
               else
                    twoDigits2 = "" + this.second;
               // string to display the time
               System.out.printf( "                                "
                         + twoDigits + ": " + twoDigits1 + ": "
                         + twoDigits2 + " " + this.am_pm );
               // System.out.println(Hour + ":" + Minute + ":" + Second);
          } while (this.second > -100);
}what i want to do is make the twodigit part to be a general if statement that will do the same to hour, minute and second.
i know that i would have to create another method, but i do not know what to put in it.
if anyone has any ideas on how i could do this it would be great
thanks,
stoneman

Answer 1

You create a DecimalFormat object, and then you use it to format a number into a String. I think the method name is "format", if you can believe that! If you read the API it should all become clear.
But then again, a SimpleDateFormat can format the whole damn date for you.