(Intro to Java Help?)

Define a class named TimeSpan. A TimeSpan object stores a span of time in hours and minutes (for example, the time span between Monday 8AM and Wednesday 10:30AM is 50 hours, 30 minutes). Each TimeSpan object should have the following public methods:

TimeSpan(hours, minutes) Constructs a TimeSpan object storing the given time span of minutes and seconds.

add(hours, minutes) Adds the given amount of time to the current time span (e.g. 2 hours, 15 min + 1 hour, 45 min = 4 hours). Assume that the arguments are valid: the hours are non-negative, and the minutes are between 0 and 59.

add(timespan) Adds the given amount of time (stored as a time span) to the current time span.

getTotalHours() Returns the total time in this time span as the real number of hours (such as 9.75 for 9 hours, 45 min).

toString() Returns a string representation of the time span of hours and minutes, such as "28h46m".

The minutes should always be reported as being in the range of 0 to 59. That means that you may have to "carry" 60 minutes into a full hour. For example, consider the following code:

TimeSpan t1 = new TimeSpan(3, 45);

System.out.println(t1 + " is " + t1.getTotalHours() + " hours");

t1.add(2, 30);

System.out.println(t1 + " is " + t1.getTotalHours() + " hours");

TimeSpan t2 = new TimeSpan(0, 55);

t1.add(t2);

System.out.println(t1 + " is " + t1.getTotalHours() + " hours");

This code creates a TimeSpan object and adds three different times to it. The output should be:

3h45m is 3.75 hours

6h15m is 6.25 hours

7h10m is 7.166666666666667 hours

Notice that the second time is not 5 hours, 75 minutes, although that's what you'd get by just adding values.