Modify class Time2 of Fig. 8.5 to include a tick method that increments the time stored in a Time2 object by one second. Provide method incrementMinute to increment the minute by one and method incrementHour to increment the hour by one. Write a program that tests the tick method, the incrementMinute method and the incrementHour method to ensure that they work correctly. Be sure to test the following cases:

a) Incrementing into the next minute,

b) Incrementing into the next hour and

c) Incrementing into the next day (i.e., 11:59:59 PM to 12:00:00 AM).

Fig. 8.5

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I 2 3 5 6 7 8 9 10 II 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 // Fig. 8.5: Time2.java // Time2 class declaration with overloaded constructors. public class Time2 { private int hour; // 0 - 23 private int minute; // 0 - 59 private int second; // 0 - 59 // Time2 no-argument constructor: // initializes each instance variable to zero public Time2() { this (0, 0, 0); // invoke constructor with three arguments } // Time2 constructor: hour supplied, minute and second defaulted to 0. public Time2(int hour) { this (hour, 0, 0); // invoke constructor with three arguments } // Time2 constructor: hour and minute supplied, second defaulted to 0 public Time2 (int hour, int minute) { this (hour, minute, 0); // invoke constructor with three arguments } // Time2 constructor: hour, minute and second supplied public Time2(int hour, int minute, int second) { if (hour < 0 11 hour >= 24) { throw new } IllegalArgumentException("hour must be 0-23"); if (minute < 0 || minute >=60) { throw new Illegal ArgumentException ("minute must be 0-59"); } if (second0 | second >=60) { throw new Illegal ArgumentException ("second must be 0-59"); } this.hour hour; this.minute = minute; this.second = second; } // Time2 constructor: another Time2 object supplied public Time2 (Time2 time) { // invoke constructor with three arguments this (time.hour, time.minute, time.second); } // Set Methods // set a new time value using universal time; // validate the data public void setTime(int hour, int minute, int second) { if (hour < 0 11 hour >= 24) { throw new IllegalArgumentException ("hour must be 0-23"); } if (minute < 0 || minute >=60) { throw new IllegalArgumentException ("minute must be 0-59"); } if (second < 0 || second >= 60) throw new IllegalArgumentException ("second must be 0-59"); } this.hour hour; this.minute = minute; this.second = second; } // validate and set hour public void setHour(int hour) { if (hour 0 11 hour >= 24) { throw new Illegal ArgumentException ("hour must be 0-23"); } 112 113 114 115 116 117 118 119 } 120 } this.hour hour; } // validate and set minute public void setMinute(int minute) { if (minute <0 || minute >=60) { throw new Illegal ArgumentException ("minute must be 0-59"); } this.minute = minute; } // validate and set second public void set Second(int second) { if (second < 0 || second >=60) { throw new Illegal ArgumentException ("second must be 0-59"); } this.second second; } // Get Methods // get hour value public int getHour() {return hour;} // get minute value public int getMinute() {return minute;} //get second value: public int getSecond() {return second;} // convert to String in universal-time format (HH:MM:SS) public String toUniversal String() { return String.format( "%02d:%02d:%02d", getHour(), getMinute(), getSecond()); } // convert to String in standard-time format (H:MM:SS AM or PM) public String toString () { return String.format("%d:%02d:%02d %s", ((getHour() == 0 11 getHour() == 12) ? 12: getHour () % 12), getMinute(), getSecond(), (getHour() < 12 ? "AM" : "PM"));