UW-Madison CS 200: Programming I
CS 200 (officially COMP SCI 200) is UW-Madison's first programming course, taught in Java. It covers variables, control flow, methods, arrays, and an introduction to objects, serving intended CS majors, data science students, and a large population just adding programming skills. It assumes no prior experience.
Fennie is independent and not affiliated with University of Wisconsin-Madison. This is an unofficial study guide.
What makes it hard
Java is a verbose first language: the boilerplate and type system frustrate beginners who expected to write two-line programs, and the zyBooks-style incremental work punishes anyone who falls behind the steady drip of deadlines. Exams require reading and writing code on paper, which trial-and-error completion of online exercises does not prepare you for.
What you'll cover
- • Java basics and program structure
- • Variables, types, and expressions
- • Conditionals and loops
- • Methods and parameter passing
- • Arrays
- • Intro to objects and classes
The CS 200 study guide
How to study for UW-Madison CS 200, step by step.
- 1
Code a little every day from week one
Programming is a practice skill and CS 200's concepts stack weekly. Twenty to forty minutes of daily writing, beyond the assigned exercises, keeps each unit load-bearing for the next.
- 2
Type out every example yourself
Reading correct Java builds recognition, not production. Retype examples, break them on purpose, and predict what changes. That's how the syntax stops fighting you.
- 3
Practice tracing code on paper weekly
Exams present code and ask what it prints, with no compiler to save you. Hand-tracing loops, method calls, and array operations is a trainable skill that most exam points reward.
- 4
Stay strictly current with the incremental deadlines
The steady stream of small assignments is designed to enforce pacing. Falling two weeks behind in a stacking-concepts course is the single most common way CS 200 goes wrong.
Today
Today's CS 200 plan
What a Fennie Daily Plan looks like for CS 200. Yours is built from your own syllabus and adapts every day to your deadlines and progress.
First plan free, no card required. Fennie is independent and unaffiliated with your school.
FAQ
Is CS 200 at UW-Madison hard?
It's a genuine but fair challenge for true beginners: Java is strict, the deadlines are constant, and exams require hand-written code. Students who practice daily and stay current with the assignment stream pass comfortably; cramming a practice skill doesn't work.
Do I need programming experience for CS 200?
No, it assumes none. Students with prior experience (or AP CS credit) often start at CS 300 instead; check the placement guidance before registering, because sitting through 200 with real Java experience wastes a semester.
What comes after CS 200?
CS 300 (Programming II), the object-oriented course that opens the CS major sequence. CS 300 assumes 200's material fluently, especially methods, arrays, and basic objects, so genuine comfort matters more than the grade.
More UW-Madison courses
CS 300: Programming II
CS 300 (officially COMP SCI 300) is UW-Madison's object-oriented programming course in Java, covering classes, inheritance, interfaces, exceptions, recursion, and intro data structures like array lists and linked lists. It's one of the largest courses on campus, since it gates the CS major and serves data science, engineering, and statistics students besides.
CS 400: Programming III
CS 400 (officially COMP SCI 400) completes UW-Madison's programming sequence: data structures and their implementations (balanced search trees, hash tables, graphs) plus software development practices like version control, testing, and team projects, all in Java.
CS 240: Introduction to Discrete Mathematics
CS 240 (officially COMP SCI 240) is UW-Madison's discrete math course for the CS major: logic, proofs, induction, sets, functions, counting, recurrences, and graphs. It's the mathematical foundation that CS 577 and the theory electives build on.
CS 252: Introduction to Computer Engineering
CS 252 (cross-listed COMP SCI/E C E 252) introduces how computers work from the bottom up: transistors and gates, combinational and sequential logic, basic computer organization, and machine and assembly programming on the LC-3. It's the first systems course in the CS and computer engineering tracks.