Welcome to CSE 121: Introduction to Computer Programming I 🎉
What is this class? What will I learn?
Computing continues to play an ever-increasing role in today’s society. Having an understanding of computing is an essential skill for those in the 21st century; from working in industries more reliant on technology, using computational methods to further scientific understanding, or being an informed citizen in a world with technology all around us.
This course is a first course in computer programming focused on the basics of procedural programming in Java. It assumes students have not taken a previous programming course and do not have substantial other programming experience. (Students with previous experience are encouraged to consider CSE 122.)
Prior Experience and Expectations
This course is intended for students who have no or very little previous programming experience. CSE 121 will teach the fundamentals of programming in Java from the very beginning. If you have previous programming experience in any text-based programming language (Java, Python, Javascript, etc.), you may find that CSE 122 or another course is a better fit for you.
To help assess if CSE 121 is the right class for you, the Allen School has developed a Self-Guided Placement to help students assess which intro course is the right one for them to enroll in. Please see this website for more information on who to contact if you have questions about which introductory CSE course is the right course for you.
Feedback
Feedback is always welcome! You can contact the the course staff or submit anonymous feedback.
If you want to learn more about the course and its policies, please check out our course syllabus.
Registration
Do not email the course staff or instructors requesting an add code for this course– the course staff do not have add codes. Please contact the CSE advising team at ugrad-adviser@cs.washington.edu for registration assistance.
Announcements¶
This Week (at a glance)¶
Tuesday (03/07)
- 🧑🏫 Quiz Section 17: Reference semantics
- 🔁 Weekly resubmission period closes @ 11:59 pm
Wednesday (03/08)
- 📚 Pre-Class Material 18: Array patterns. Do PCM before class.
- 👥 Class Session @ 11:30 in KNE 210 and 2:30 in GUG 220.
- 🔁 Resubmission (due following Tuesday) form for next week released.
Thursday (03/09)
- 🧑🏫 Quiz Section 18: Final exam review; Wrap-up
Friday (03/10)
- No PCM for class today!
- 👥 Class Session @ 11:30 in KNE 210 and 2:30 in GUG 220.
- 💻 P3 It's Data Time! due @ 11:59 pm.
Calendar¶
Info
This is a rough sketch of the quarter and things are subject to change. We can accurately predict the past, but predicting the future is hard!
Lessons
Anything listed in the “Lesson” materials for a day should be read before attending class that day. The Lessons are a first introduction to the most important terms and concepts for that day of class. It is okay if the Lesson doesn’t make complete sense as we have the rest of the class day to clarify the concepts, but if you don’t do the Lesson the class session won’t make any sense.
| Topic | Programming / Creative Projects | Resubmissions | ||
|---|---|---|---|---|
| Module 0 - Welcome; Hello, World | ||||
| Tue 01/03 | No section today! | |||
| Wed 01/04 | LES 00 Welcome; Course Policies Note: Normally you would complete the Pre-class Work before class. There is nothing you need to complete before class today! | |||
| Thu 01/05 | SEC 00 Introductions resources: materials | |||
| Fri 01/06 | LES 01 Printing; Turtle basics | |||
| Released C0 I.S. by 11:59 pm Hello World/Turtle Drawing | ||||
| Module 1 - Types, Expressions, Variables | ||||
| Tue 01/10 | SEC 01 Printing; Turtles resources: materials | |||
| Wed 01/11 | LES 02 Datatypes; Expressions | |||
| Thu 01/12 | SEC 02 Types; Expressions resources: materials | |||
| Released P0 I.S. by 11:59 pm Code Reviews | ||||
| Fri 01/13 | LES 03 Variables; Strings; Debugging | |||
Module 2 - for loops | ||||
| Tue 01/17 | SEC 03 Variables; Strings resources: materials | |||
| Wed 01/18 | LES 04 for loops | |||
| Released C1 I.S. by 11:59 pm Drawing Shapes | ||||
| Thu 01/19 | SEC 04 for loops resources: materials | |||
| Released R0 Due 11:59 pm Resub 0 | ||||
| Fri 01/20 | LES 05 Nested for loops; Random | |||
| Module 3 - Methods | ||||
| Tue 01/24 | QUIZ 00 Quiz 0 - Printing, Expressions, for loops, Random | |||
| Wed 01/25 | LES 06 Methods | |||
| Released P1 I.S. by 11:59 pm Election Simulator | ||||
| Thu 01/26 | SEC 06 Nested for loops and Random resources: materials | |||
| Released R1 Due 11:59 pm Resub 1 | ||||
| Fri 01/27 | LES 07 Parameters | |||
| Module 4 - Conditionals | ||||
| Tue 01/31 | SEC 07 Methods; Parameters resources: materials | |||
| Wed 02/01 | LES 08 Return values | |||
| Released C2 I.S. by 11:59 pm Parameterized Shapes | ||||
| Thu 02/02 | SEC 08 Return values resources: materials | |||
| Released R2 Due 11:59 pm Resub 2 | ||||
| Fri 02/03 | LES 09 Conditionals | |||
| Module 5 - Interaction | ||||
| Tue 02/07 | QUIZ 01 Quiz 1 - Methods, conditionals | |||
| Wed 02/08 | LES 10 while loops | |||
| Thu 02/09 | SEC 10 Conditionals resources: materials | |||
| Released R3 Due 11:59 pm Resub 3 | ||||
| Fri 02/10 | LES 11 User input ( Scanner) | |||
| Released P2 I.S. by 11:59 pm Prioritizing Patients | ||||
| Module 6 - Mid-quarter reflection | ||||
| Tue 02/14 | SEC 11 while loops; User input (Scanner) resources: materials | |||
| Wed 02/15 | LES 12 Putting it all together Note: No Pre-class Material for today! | |||
| Thu 02/16 | SEC 12 While Loops/User Input Review resources: materials | |||
| Released R4 Due 11:59 pm Resub 4 | ||||
| Fri 02/17 | LES 13 Mid-term Feedback Note: No Pre-class Material for today! | |||
| Module 7 - File input/output | ||||
| Tue 02/21 | SEC 13 Quiz Review/Prep | |||
| Wed 02/22 | LES 14 File input/output | |||
| Released C3 I.S. by 11:59 pm Drawing from Files | ||||
| Thu 02/23 | SEC 14 File input/output Note: Quiz 2's 48-hour window opens up on Ed at 12:01 AM resources: materials | |||
| Released R5 Due 11:59 pm Resub 5 | ||||
| Fri 02/24 | LES 15 File input/output (cont.) Note: Quiz 2's 48-hour window closes on Ed at 11:59 PM | |||
| Module 8 - Arrays | ||||
| Tue 02/28 | SEC 15 File input/output pt. 2 | |||
| Wed 03/01 | LES 16 Arrays | |||
| Released P3 I.S. by 11:59 pm It's Data Time! | ||||
| Thu 03/02 | SEC 16 Arrays resources: materials | |||
| Released R6 Due 11:59 pm Resub 6 | ||||
| Fri 03/03 | LES 17 Reference semantics | |||
| Module 9 - Review and Next Steps | ||||
| Tue 03/07 | SEC 17 Reference semantics resources: materials | |||
| Wed 03/08 | LES 18 Array patterns | |||
| Released R7 Due 11:59 pm Resub 7 | ||||
| Thu 03/09 | SEC 18 Final exam review; Wrap-up | |||
| Fri 03/10 | LES 19 Wrap-up; Victory lap Note: No Pre-class Material for today! | |||
| Module 10 - Finals Week | ||||
| Tue 03/14 | EXAM Final Exam (12:30-2:20pm) | |||
| Wed 03/15 | ||||
| Thu 03/16 | ||||
| Fri 03/17 | ||||