//******************************************************************
// Time.java               Author: Torben Hoffmann
//                         Modified by Anne Haxthausen 25/9-2001
//                         Modified by Morten Proschowsky 1/10-2001   
//                         Modified by Anders Keldsen 14/10-2002  
// Representation of the time.
//******************************************************************

public class Time
{
    // instance data
    private int min;        // since midnight
   
   // constructor
    public
	Time(int hours, int min)
    { 
	// using "this" to distinguish instance data from
	// the formal parameters
	this.min = (hours*60+min)%1440;
         
    }


    // returns hours since midnight
    public int gethours() { return min/60 ;}

    // returns minutes (over hours) since midnight
    public int getmin() { return min%60; }

    // aux method to aid pretty printing of the time, eg,
    // 09.03 instead of 9.3
    private static 
	String twodigits(int n)
    { 
	// first the tens and then the ones
	return Integer.toString(n/10) + Integer.toString(n%10); 
    }

    public 
	String toString()
    { 
	return twodigits(gethours()) + "." + twodigits(getmin()); 
    }

    // s.passtime(min) moves the current time min minutes forward
    void passtime(int min)
    { 
	this.min = (this.min+min)%1440;
    }

    // returns a new Time object, min minutes into the future
    public
	Time plus(int min)
    {
	int totalMin = (this.min+min)%1440;
	return new Time(totalMin/60, totalMin%60);
    }

    // s.to(t) returns the number of minutes from s to t
    public
	int to(Time t)
    {  return t.min - this.min; 
    }

    // s.before(t) returns true if s is earlier in the day than t
    public
	boolean before(Time t)
    { 
	return (this.min<t.min);  
    }
}