CPSC 421-020 Object-Oriented Programming (OOP) Spring 2026

Week 3 Class 4 Tue Jan 27 Posted: Jan 27

Announcements

• GitHub Classroom Error

  If you get the following:

  

  Go to your GitHub account. From the icon on the far right top corner, select "Organizations". There you will see an invitation to accept the project.

• Exercise 8: For Statement Quiz and Exercise 9: Rainfall II Feedback and grades are not ready yet.

• make run

  • The users of a program will not have make so they cannot use make run.
  • The users of a program will want to run the program with their own data, not the demo data of a project.
  • Knowing how to run the program directly on the command line is required of every developer of a project, because that is how a user would run it.
  • The Rainfall project has a target run for the Makefile, i.e., make run. This was provided because the main program, rainfall, required an input file (the rain data) sent via standard input.
  • When programs have required input files or required options, a make run is often given as an example, along with demo data. It is not expected that make run is the only way to run the program.
  • So, when there is no provided make run, do not add one to the CMake files (this is not DevOps). Run the program directly.
  • In class, showed running IOBuffering directly from the command line.

Agenda

• Exercise 10: Software Design Characteristics Quiz

  Link to form provided in Brightspace during the quiz time.

• Project 1: srcFacts

  All project due dates are 11:59:59 pm.

• Exercise 11: Build srcFacts

  Build and run the Project 1 srcfacts program performing the following:

  • Clone the repository and move to the repo directory (Not required if you are using GitHub Codespaces or have already cloned the repository)
  • Create the build directory - If you already have a build directory, delete it first
  • Move to the build directory
  • Create the build using cmake
  • Build the project using make
  • Run the program with the demo make run
  • Run the program with the demo directly, not using make

  • Enter the following command:

  To demonstrate this, you will record a terminal session using asciinema, as we did in Exercise 10: IOBuffering.

  IMPORTANT The URL should not contain "connect" or be a local file. Test your URL in a browser verifying that it shows the session you recorded. An incorrect URL will receive a 0.

• Notes: Algorithmic Decomposition
• Exercise 12: Algorithmic Decomposition Crossword
• Notes: Rainfall Coding Practices

• Exercise 13: Rainfall III

  Continuing on using the workflow from Rainfall I

  As before, you can follow along and see the commits that I make in class:

  OOPS26-Rainfall-020

  If you have any questions or issues, make sure to contact me.

Unless otherwise noted, exercises are due by 4 pm on Wed Jan 28