2. Objects

• Feel free to use your laptop

• You are strongly encourage to work with others

  • When you get stuck, ask those sitting around you for help

  • Get used to working together in the labs

  • Peer teaching and peer learning has been empirically shown to be very effective

2.1. Creating Objects

The goal is to make a program that will keep track of a suite of courses. To do this, two classes will be written — one for keeping track of the information about a single course, and another for keeping track of multiple courses. In this lab, the Course class will be created.

2.1.1. Course Class

A Course is a simple object to keeps track of data. Refer to the objects review topic for guidance on creating this class.

1. Create a class called Course that has three private fields: programCode, courseCode, and courseTitle

   • For example, a data structures course could have the following values for the fields

     • programCode — "CS"

     • courseCode — "102"

     • courseTitle — "Programming and Data Structures"

2. Write a single constructor to take and assign values to the fields

3. Write accessor methods for the three fields

   • For example, getCourseCode

4. Write a toString method that returns a string representation of the object

   • The string should be of the form "Course(programCode, courseCode, courseTitle)"

5. Write an equals method that checks if two Course objects are equivalent

   • Two Course objects are considered equal if all their fields match

   • Remember, do not check string equality with ==

6. Write a hashCode method

7. Test the Course class by making instances of them and calling the methods to see if they work as expected

   • Create a few instances of the Course class in main

   • Call their methods and check if their behaviour is as expected

   • Be sure to check all methods

2.2. Kattis Problems

1. https://open.kattis.com/problems/quadrant

2. https://open.kattis.com/problems/judgingmoose

3. https://open.kattis.com/problems/timeloop

4. https://open.kattis.com/problems/oddities

5. https://open.kattis.com/problems/fizzbuzz

6. https://open.kattis.com/problems/twostones

7. https://open.kattis.com/problems/spavanac

8. https://open.kattis.com/problems/cetvrta

9. https://open.kattis.com/problems/bus

10. https://open.kattis.com/problems/timeloop

11. https://open.kattis.com/problems/oddities

12. https://open.kattis.com/problems/fizzbuzz

13. https://open.kattis.com/problems/sibice

14. https://open.kattis.com/problems/datum

15. https://open.kattis.com/problems/dicecup

16. https://open.kattis.com/problems/autori

17. https://open.kattis.com/problems/apaxiaaans

18. https://open.kattis.com/problems/hissingmicrophone

19. https://open.kattis.com/problems/trik

20. https://open.kattis.com/problems/pot

21. https://open.kattis.com/problems/filip

22. https://open.kattis.com/problems/reversebinary

23. https://open.kattis.com/problems/sevenwonders

24. https://open.kattis.com/problems/zamka

25. https://open.kattis.com/problems/bijele

26. https://open.kattis.com/problems/cold

27. https://open.kattis.com/problems/nastyhacks

28. https://open.kattis.com/problems/grassseed

29. https://open.kattis.com/problems/pet

30. https://open.kattis.com/problems/batterup

31. https://open.kattis.com/problems/aboveaverage

32. https://open.kattis.com/problems/icpcawards

33. https://open.kattis.com/problems/quickbrownfox

34. https://open.kattis.com/problems/nodup

35. https://open.kattis.com/problems/conundrum

36. https://open.kattis.com/problems/bela

37. https://open.kattis.com/problems/kornislav