private int hour;

private int minute;

private int second;

// Time2 no argument constructor:

// Initialises each instance variable to zero

public Time2(){

this(0, 0, 0); // invoke Time2 constructor with three arguments

}

// Time2 constructor: hour supplied, minute and second defaulted to 0

public Time2(int h){

this(h, 0, 0);

}

// Time2 constructor: hour and minute supplied, second defaulted to 0

public Time2(int h, int m){

this(h, m, 0);

}

// Time2 constructor: hour, minute and second supplied

public Time2(int h, int m, int s){

setTime(h, m, s);

}

// Time2 constructor: another Time2 object supplied

public Time2(Time2 time){

// invoke Time2 three-argument constructor

this(time.getHour(), time.getMinute(), time.getSecond());

}

// SETTERS

// set a new time value using universal time

// validate the data

public void setTime(int h, int m, int s){

setHour(h);

setMinute(m);

setSecond(s);

}

// validate and set the hour

public void setHour(int h){

if(h >= 0 && h < 24)

hour = h;

else

throw new IllegalArgumentException("hour must be 0-23");

}

// validate and set minute

public void setMinute(int m){

if(m >= 0 && m < 60)

minute = m;

else

throw new IllegalArgumentException("minute must be 0-59");

}

// validate and set second

public void setSecond(int s){

if(s >= 0 && s < 60)

second = ((s >= 0 && s < 60) ? s : 0);

else

throw new IllegalArgumentException("second must be 0-59");

}

// GETTERS

// get hour

public int getHour(){

return hour;

}

// get minute

public int getMinute(){

return minute;

}

// get second

public int getSecond(){

return second;

}

// convert to String in universal time format (HH:MM:SS)

public String toUniversalString(){

return String.format(

"%02d:%02d:%02d", getHour(), getMinute(), getSecond());

}

// convert to String in standard time format (H:MM:MM AM/PM)

public String toString(){

return String.format("%d:%02d:%02d %s",

((getHour() == 0 || getHour() == 12) ? 12 : getHour() % 12),

getMinute(), getSecond(), (getHour() < 12 ? "AM" : "PM"));

}