Miscellany

package homework;public class TimeInterval {	private int firsttime;	private int secondtime; 		public TimeInterval(int a, int b)	{		a = firsttime;		b = secondtime;		}		public int getHours(int a)	{		String d = Integer.toString(a);		int b = Integer.parseInt(d.substring(0,2));		return b;	}		public int getMinutes(int a)	{		String d = Integer.toString(a);		int b = Integer.parseInt(d.substring(2,3));		return b;	}		public String TimeDiff(int a, int b)	{		int c = b - a;		return getHours(c) + " hours " + getMinutes(c) + " minutes."; 	}		public String Output()	{		return TimeDiff(firsttime, secondtime);	}	}