public class Time2
1: // Fig. 8.5: Time2.java
2: // Time2 class declaration with overloaded constructors.
3:
4: public class Time2
5: {
6: private int hour; // 0 - 23
7: private int minute; // 0 - 59
8: private int second; // 0 - 59
9:
10: // Time2 no-argument constructor: initializes each instance variable
11: // to zero; ensures that Time2 objects start in a consistent state
12: public Time2()
13: {
14: this( 0, 0, 0 ); // invoke Time2 constructor with three arguments
15: } // end Time2 no-argument constructor
16:
17: // Time2 constructor: hour supplied, minute and second defaulted to 0
18: public Time2( int h )
19: {
20: this( h, 0, 0 ); // invoke Time2 constructor with three arguments
21: } // end Time2 one-argument constructor
22:
23: // Time2 constructor: hour and minute supplied, second defaulted to 0
24: public Time2( int h, int m )
25: {
26: this( h, m, 0 ); // invoke Time2 constructor with three arguments
27: } // end Time2 two-argument constructor
28:
29: // Time2 constructor: hour, minute and second supplied
30: public Time2( int h, int m, int s )
31: {
32: setTime( h, m, s ); // invoke setTime to validate time
33: } // end Time2 three-argument constructor
34:
35: // Time2 constructor: another Time2 object supplied
36: public Time2( Time2 time )
37: {
38: // invoke Time2 three-argument constructor
39: this( time.getHour(), time.getMinute(), time.getSecond() );
40: } // end Time2 constructor with a Time2 object argument
41:
42: // Set Methods
43: // set a new time value using universal time; ensure that
44: // the data remains consistent by setting invalid values to zero
45: public void setTime( int h, int m, int s )
46: {
47: setHour( h ); // set the hour
48: setMinute( m ); // set the minute
49: setSecond( s ); // set the second
50: } // end method setTime
51:
52: // validate and set hour
53: public void setHour( int h )
54: {
55: hour = ( ( h >= 0 && h < 24 ) ? h : 0 );
56: } // end method setHour
57:
58: // validate and set minute
59: public void setMinute( int m )
60: {
61: minute = ( ( m >= 0 && m < 60 ) ? m : 0 );
62: } // end method setMinute
63:
64: // validate and set second
65: public void setSecond( int s )
66: {
67: second = ( ( s >= 0 && s < 60 ) ? s : 0 );
68: } // end method setSecond
69:
70: // Get Methods
71: // get hour value
72: public int getHour()
73: {
74: return hour;
75: } // end method getHour
76:
77: // get minute value
78: public int getMinute()
79: {
80: return minute;
81: } // end method getMinute
82:
83: // get second value
84: public int getSecond()
85: {
86: return second;
87: } // end method getSecond
88:
89: // convert to String in universal-time format (HH:MM:SS)
90: public String toUniversalString()
91: {
92: return String.format(
93: "%02d:%02d:%02d", getHour(), getMinute(), getSecond() );
94: } // end method toUniversalString
95:
96: // convert to String in standard-time format (H:MM:SS AM or PM)
97: public String toString()
98: {
99: return String.format( "%d:%02d:%02d %s",
100: ( (getHour() == 0 || getHour() == 12) ? 12 : getHour() % 12 ),
101: getMinute(), getSecond(), ( getHour() < 12 ? "AM" : "PM" ) );
102: } // end method toString
103: } // end class Time2
104:
105: /**************************************************************************
106: * (C) Copyright 1992-2005 by Deitel & Associates, Inc. and *
107: * Pearson Education, Inc. All Rights Reserved. *
108: * *
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111: * development, research, and testing of the theories and programs *
112: * to determine their effectiveness. The authors and publisher make *
113: * no warranty of any kind, expressed or implied, with regard to these *
114: * programs or to the documentation contained in these books. The authors *
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