Class to test Time2 Class

Java_LTP_CH8_5_Time2

public class Time2 {
	private int hour; //0-23
	private int minute; //0-59
	private int second; //0-59
	
	//set a new time value using universal time; ensure that
	//the data remains consistent by setting invalid values to zero
	public Time2()
	{
		this(0, 0, 0);
	}
	
	public Time2(int h)
	{
		this(h, 0, 0);
	}
	
	public Time2(int h, int m)
	{
		this(h, m, 0);
	}
	
	public Time2(int h, int m, int s)
	{
		setTime(h, m, s);
	}
	
	public Time2(Time2 time)
	{
		this(time.getHour(), time.getMinute(), time.getSecond());
	}
	
	public void setTime(int h, int m, int s)
	{
		setHour(h);
		setMinute(m);
		setSecond(s);
	}
	/**
	 * @return the hour
	 */
	public int getHour() {
		return hour;
	}

	/**
	 * @param hour the hour to set
	 */
	public void setHour(int hour) {
		this.hour = ((hour >= 0 && hour < 24) ? hour : 0);
	}

	/**
	 * @return the minute
	 */
	public int getMinute() {
		return minute;
	}

	/**
	 * @param minute the minute to set
	 */
	public void setMinute(int minute) {
		this.minute = ((minute >= 0 && minute < 60) ? minute : 0);
	}

	/**
	 * @return the second
	 */
	public int getSecond() {
		return second;
	}

	/**
	 * @param second the second to set
	 */
	public void setSecond(int second) {
		this.second = ((second >= 0 && second < 60) ? second : 0);
	}

	//use explicit and implicit "this" to call toUniversalString
	public String buildString()
	{
		return String.format("%24s: %s\n%24s: %s", 
				"this.toUniversalString()", this.toUniversalString(),
				"toUniversalString()", toUniversalString());
	}
	
	//convert to string in universal-time format (HH:MM:SS)
	public String toUniversalString()
	{
		return String.format("%02d:%02d:%02d", this.hour, this.minute, this.second);
	}
	
	//convert to String in standard-time format (H:MM:SS AM or PM)
	public String toString()
	{
		return String.format("%d:%02d:%02d %s",
				((hour == 0 || hour == 12) ? 12: hour % 12),
				minute, second, (hour < 12 ? "AM" : "PM"));
	}

}

Java_LTP_CH8_5_Time2Test

public class Time2Test {

	public static void main(String[] args) {
		Time2 t1 = new Time2(); //00:00:00
		Time2 t2 = new Time2(2); //02:00:00
		Time2 t3 = new Time2(21,34); //21:34:00
		Time2 t4 = new Time2(12,25,42); //12:25:42
		Time2 t5 = new Time2(27, 74, 99); //00:00:00
		Time2 t6 = new Time2(t4); //12:25:42
		
		System.out.println("Constructed with:");
		System.out.println("t1: all arguments defaulted");
		System.out.printf("   %s\n", t1.toUniversalString());
		System.out.printf("   %s\n",  t1.toString());
		
		System.out.println("t2: hour specified; minute and second defaulted");
		System.out.printf("   %s\n", t2.toUniversalString());
		System.out.printf("   %s\n", t2.toString());
		
		System.out.println("t3: hour and minute specified; second defaulted");
		System.out.printf("   %s\n", t3.toUniversalString());
		System.out.printf("   %s\n", t3.toString());
		
		System.out.println("t4: hour, minute and second specified");
		System.out.printf("   %s\n", t4.toUniversalString());
		System.out.printf("   %s\n", t4.toString());
		
		System.out.println( "t5: all invalid values specified");
		System.out.printf("   %s\n", t5.toUniversalString());
		System.out.printf("   %s\n", t5.toString());
		
		System.out.println("t6: Time2 object t4 specified");
		System.out.printf("   %s\n", t6.toUniversalString());
		System.out.printf("   %s\n", t6.toString());
		

	}

}