As you can see this was a solution to a problem if someone could go through line by line and explain to me especially the timeof day file that would help me alot.I am having trouble understanding the logic used with the first class of code time of day.

A mutable encapsulation of the time during a day. public class TimeofDay private static final int SECONDS PER MINUTE = 60 private static final int MINUTES PER HOUR = 60 private static final int HOURS_PER_DAY private static final int SECONDS PER HOUR SECONDS PER MINUTE * MINUTES PER HOUR; private static final int SECONDS_PER_DAYSECONDS_PER_HOUR HOURS PER_DAY; = 24 = 12; private static final int NOON private static final int MIDNIGHT private static final String AM private static final String PM private static final String DELIM 12; = "AM"; "PM" private int elapsed; // Number of seconds since midnight param hoursHours since/before (if positiveegative) midnight param minutes Minutes since/before (if positiveegative) midnight param seconds Seconds since/before (if positiveegative) midnight public TimeofDay(int hours, int minutes, int seconds) elapsed = 0; changeBy(hours, minutes, seconds)