AP Computer Science Homework Set 4 Arrays and ArrayLists of ...

P4B. Write a program that creates a “ClockStore” class that is able to hold
“Clock” objects. You should reuse the Clock class from the previous chapter.
The class should meet the following requirements:
1. Write a class “ClockStore” that consists of a private array called
“clocksInStock” that can hold 3 Clock objects.
2. Create an instance of class “ClockStore” and populate it with three Clock
objects using the Clock’s constructor. You set the time for each Clock.
Here’s a sample demonstrating how to place a Clock in the array at position
“0”:
clocksInStock[0] = new Clock( 12, 30, 45 );
4. Write a processor method mostSeconds() that returns index of the Clock
that has the highest total seconds as calculated by the Clock method
totalSeconds(). The ClockStore method mostSeconds() should
have the following header:
int mostSeconds()
5. Write a toString() method that traverses the array of Clocks using a foreach
loop. This should print the time of each clock using each Clock’s
toString() method.
6. Write a driver class “ClockDriver” that tests the above methods.
P4C. Write a program that creates a “Roster” class that is able to hold
“Student” objects. You should reuse the Student class from the previous
chapter.
The class should meet the following requirements:
1. Write a class “Roster” that consists of a private array of Students.
2. Create an instance of class “Roster” and populate it with three Student
objects.
3. Write a Roster findStudentWithMaxGPA() method that traverses the
array with a for loop and returns out the name of the student with the max
GPA.
4. Write a Roster toString() method prints the name of the student with the
maximum GPA (via calling the method findStudentWithMaxGPA().
5. Write a driver class “RosterDriver” that tests the above methods.
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AP Computer Science – HW Set 4 Programs
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