// Fig. 26.2: Time1.java
// Time1 class definition
package com.deitel.chtp4.ch26;
import java.text.DecimalFormat; // used for number formatting
// This class maintains the time in 24-hour format
public class Time1 extends Object {
private int hour; // 0 - 23
private int minute; // 0 - 59
private int second; // 0 - 59
// Time1 constructor initializes each instance variable
// to zero. Ensures that each Time1 object starts in a
// consistent state.
public Time1()
{
setTime( 0, 0, 0 );
} // end Time1 constructor
// Set a new time value using military time. Perform
// validity checks on the data. Set invalid values
// to zero.
public void setTime( int h, int m, int s )
{
hour = ( ( h >= 0 && h < 24 ) ? h : 0 );
minute = ( ( m >= 0 && m < 60 ) ? m : 0 );
second = ( ( s >= 0 && s < 60 ) ? s : 0 );
} // end method setTime
// Convert to String in universal-time format
public String toUniversalString()
{
DecimalFormat twoDigits = new DecimalFormat( "00" );
return twoDigits.format( hour ) + ":" +
twoDigits.format( minute ) + ":" +
twoDigits.format( second );
} // end method toUniversalString
// Convert to String in standard-time format
public String toString()
{
DecimalFormat twoDigits = new DecimalFormat( "00" );
return ( (hour == 12 || hour == 0) ? 12 : hour % 12 ) +
":" + twoDigits.format( minute ) +
":" + twoDigits.format( second ) +
( hour < 12 ? " AM" : " PM" );
} // end method toString
} // end class Time1
/**************************************************************************
* (C) Copyright 1992-2004 by Deitel & Associates, Inc. and *
* Pearson Education, Inc. All Rights Reserved. *
* *
* DISCLAIMER: The authors and publisher of this book have used their *
* best efforts in preparing the book. These efforts include the *
* development, research, and testing of the theories and programs *
* to determine their effectiveness. The authors and publisher make *
* no warranty of any kind, expressed or implied, with regard to these *
* programs or to the documentation contained in these books. The authors *
* and publisher shall not be liable in any event for incidental or *
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