// Fig. 8.5: Time2.java
// Time2 class declaration with overloaded constructors

public class Time2
{
    private int jam;   //0-23
    private int menit; //0-59
    private int detik; //0-59
    
    //Time2 no-argument constructor
    //inisialisasi each instance variable to zero
    public Time2()
    {
        this(0, 0, 0);//memanggil TIme2 constructor dgn 3 argumen
    } //akhir Time2 no-argument constructor
    
    //Time2 constructor: jam disediakan, menit dan detik diatur ke 0
    public Time2(int j)
    {
        this(j, 0, 0); // memanggil Time2 constructor dengan 3 argumen
    } // akhir Time2 one-argument constructor

    //Time2 constructor: jam dan menit disediakan, detik diatur ke 0
    public Time2(int j, int m)
    {
        this(j, m, 0);//memanggil Time2 constructor dgn 3 argumen
    }//akhir Time2 two-arguments constructor

    //Time2 constructor: jam, menit, dan detik disediakan
    public Time2(int j, int m, int d)
    {
        setTime(j, m, d);//memanggil setTime untuk memvalidasi waktu
    } //akhir Time2 three-argument constructor
    
    //Time2 constructor: objek Time2 lain yang disediakan
    public Time2(Time2 time)
    {
        //memanggil Time2 three-argument constructor
        this(time.getJam(), time.getMenit(), time.getDetik());
    } // akhir Time2 dengan objek argumen Time2
    
   // Set Methods
   // set a new time value using universal time;
   // validate the data
   public void setTime(int j, int m, int d)
   {
       setJam(j);   // mengatur jam
       setMenit(m); // mengatur menit
       setDetik(d); // mengatur detik
   } //akhir method setTime
    
   // validate and set jam
   public void setJam(int j)
   {
       if (j >= 0 && j < 24)
          jam = j;
       else
          throw new IllegalArgumentException("hour must be 0-23");
   } //akhir method setHour
   
   // validate and set menit
   public void setMenit(int m)
   {
       if (m >= 0 && m < 60)
          menit = m;
       else
          throw new IllegalArgumentException( "minute must be 0-59" );
   } //akhir method setMinute
   
   // validate and set detik
   public void setDetik(int d)
   {
       if (d >= 0 && d < 60)
          detik = ((d >= 0 && d < 60)?d: 0);
       else
          throw new IllegalArgumentException( "second must be 0-59" );
   } //akhir method setDetik
   
   // Get Methods
   // mendapatkan nilai jam
   public int getJam()
   {
       return jam;
   }// akhir method getJam

   // mendapatkan nilai menit
   public int getMenit()
   {
       return menit;
   } // akhir method getMenit

   // mendapatkan nilai detik
   public int getDetik()
   {
       return detik;
   } // akhir method getDetik
   
   //mengubah ke string dalam format waktu universal (JJ:MM:DD)
   public String toUniversalString()
   {
       return String.format(
       "%02d:%02d:%02d", getJam(), getMenit(), getDetik());
   } //akhir method toUniversalString    
   
   //mengubah ke string dalam format waktu standar (J:MM:DD AM or PM)
   public String toString()
   {
       return String.format( "%d:%02d:%02d %s",
       ((getJam() == 0 || getJam() == 12) ? 12 : getJam() % 12 ),
       getMenit(), getDetik(), (getJam() < 12 ? "AM" : "PM" ) );
    } //akhir method toString
} //akhir program / class Time2