lesson14 - Generic Class

Overview

In this lab we are going to create a class that implements the comparable interface. The comparable interface allows us to order our objects when searching and sorting.

Important links

• Lab Overview
• Class Coding standards
• Cloning and Submitting

Task 1 - Complete the MyCourse class

Find the MyCourse.java class that implements the Course and Comparable interface and complete the class as defined.

The Course class will need to define a constructor and override the toString method as follows:

• Course(dept, num) - set department to parameter dept and number to parameter num
• toString() - return a string representation of a course (see the example below for the format)

The compareTo(otherCourse) method that enables sorting of Course objects need to return -1, 0, or 1 according to the comparisons of the private members between Course and otherCourse. Precedence of comparisons: department (lowest first), then number (lowest first). See below for an example.

Task 2 - Create unit tests

Create as many unit tests as necessary for your Course class in the file CourseTest.java to ensure your code is correct. You will need to define at least 3 tests.

Task 3 - Input output Testing

The file App.java is given to you to complete. You can now run input output testing with real data on your newly created classes. You will need to read in input from the terminal, create new MyCourse objects and then add them to an ArrayList. Once you have read in all the courses you will call Collections.sort on your list and then output them to the command line using the toString() method on your class (you will need to override toString in MyCourse).

Example run

Input:

c 1
c 2
a 5
a 2
b 0

Output:

MyCourse [department=a, number=2]
MyCourse [department=a, number=5]
MyCourse [department=b, number=0]
MyCourse [department=c, number=1]
MyCourse [department=c, number=2]

Task 4 - Complete the Retrospective

Once you have completed all the tasks open the file Retrospective.md and complete each section with a TODO comment.

Task 5 - Add, Commit, Push your code

Once you are finished you need to make sure that you have pushed all your code to GitHub for grading!