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1. CSC 3100 Software Engineering Lecture. Midterm Review Dr. Javier Gonzalez-Sanchez javiergs@calpoly.edu www.javiergs.info ffi o ce: 14 -227
2. Grading 20% Ex ms 15 + 15 % 3 a 10%
3. Grading 4 >= 98.5 A+ >= 77.5 C+ >= 95 A >= 74 C >= 91.5 A- >= 70.5 C- >= 88 B+ >= 67 D+ >= 84.5 B >= 63.5 D >= 81 B- >= 60 D- < 60 F
4. Disclaimer for Final Exam Review The in l ex m is comprehensive, encomp ssing ll course m teri ls. This review covers only subset of topics. Import nt: • Ensure you review ll lecture slides nd course m teri ls. • The following slides include ex mples rel ted to selected topics. • This is NOT n exh ustive list of ex m topics. a a a a a a a a a a a a a a a a a f 5
5. Key Topics • Softw re Engineering is not Progr mming. • Process Models nd Agile Methods • Requirements nd Storybo rding, T sks nd T ig • Softw re Design (UML, i.e., softw re blueprints). • Design Principles nd GoF • Libr ries, Dependencies, M ven • Project, Assignments, Coding a a a a a a a a a a a a a a 6
6. Questions
7. 5 pts · Git workflow What is the purpose of a Git branch? A. Store compiled Java files B. Develop changes independently before merging C. Replace the repository D. Automatically grade code E. Delete previous commits 2
8. 5 pts · Git workflow Which statement best distinguishes a commit from a pull request (PR)? A. Both merge code automatically B. A PR saves a local snapshot; a commit requests review C. A commit records changes; a PR proposes merging changes for review D. A commit is an issue; a PR is a task E. A PR cannot contain commits 3
9. 5 pts · Stories and tasks A story says: “As an operator, I can see LiDAR points.” Which is a suitable implementation task? A. Improve the app B. Complete the sprint C. Implement a LiDAR chart using Jzy3D and a runnable test class D. Make software good E. Learn Java 5
10. 5 pts · Maven Where should Java production classes normally go in a Maven project? A. src/test/java B. docs/uml.png C. target/classes D. src/main/java E. .github/workflows 6
11. 5 pts · Documentation What belongs in class-level JavaDoc for our labs? A. Only the filename B. Class purpose, @author, and @version C. Only an @return tag D. A screenshot of output E. Only the package name 7
12. 5 pts · UML In a UML class diagram, a solid line with a hollow triangle pointing to Vehicle usually means: A. Dependency B. Composition C. Inheritance/generalization D. Association only E. An event notification 8
13. 5 pts · UML A dashed arrow from Report to JsonParser commonly indicates: A. Report depends on/uses JsonParser B. Report inherits JsonParser C. JsonParser is nested inside Report D. Both classes are identical E. Report owns JsonParser for its entire lifetime 9
14. 5 pts · Patterns Which pattern allows changing a battle algorithm without changing the Hero class? A. Strategy B. Singleton C. Observer D. Builder E. Composite 11
15. 5 pts · Patterns A WeatherSystem notifies registered Hero objects whenever conditions change. Which pattern? A. Factory B. Observer C. Decorator D. Builder E. Strategy 12
16. 5 pts · Patterns A BufferedInputStream wraps an InputStream and adds buffering. Which pattern does this illustrate? A. Composite B. Observer C. Decorator D. Factory E. Singleton 13
17. 10 pts · Code reading Hero h = new HeroBuilder().name("Ari").level(4).role("Mage").build(); Identify the pattern. Explain what build() should return and why fluent methods typically return the builder. 15
18. 10 pts · Coding Write Java code for a BattleStrategy interface with int damage(int power), plus a HeavyAttack implementation returning power * 2. No nested classes. 16
19. 10 pts · Coding Write a WeaponFactory.create(String type) method returning a Sword for "sword" and a Staff for "staff". Assume Weapon, Sword, and Staff exist. Specify behavior for unknown types. 17
20. 10 pts · Story design Story: “As an operator, I can view a time-series temperature chart.” Write TWO actionable tasks, each with a verifiable acceptance criterion. Include a charting library used in class. 18
21. 15 pts · Coding Implement a simple Observer design: WeatherListener with update(String condition); WeatherSystem with addListener(...) and setCondition(...) that notifies listeners. Put every class in its own .java file. 20
22. 15 pts · Coding + UML Design a Hero that can switch between FastAttack and HeavyAttack at runtime. Provide Java class/interface skeletons and a UML diagram with correct relationships. No nested classes. 21
23. 15 pts · Coding + UML Create a fluent HeroBuilder supporting name, role, and level, then build(). Draw UML showing Hero and HeroBuilder. Each class must have its own file and class-level JavaDoc. 22
24. Test Yourselves Process Models
25. Strategies 26
26. Activities 27
27. We are here Burndown Chart 28
28. Sample 29
29. Sample 30
30. Test Yourselves Requirements and Stories
31. INVEST in good requirements • Independent – loosely coupled with one another • Negotiable – Stories are what and why , not how ( 99% ). • Valuable – for the customer! • Estimatable – E ort/Cost of design, build, and test. • Small (sized appropriately) • Testable – pass or fail ff 32
32. Is it a story, and is it INVEST? 33
33. Is it a story, and is it INVEST? 34
34. Is it a story, and is it INVEST? 35
35. Question 36
36. Question 37
37. Question 38
38. Case 1 39
39. Case 2 40
40. Case 3 41
41. Test Yourselves Design and Coding
42. Relationships 43
43. GoF Patterns 44
44. • Students nd St members c n request the Libr ry to notify him/her when Book becomes v il ble. • Also, they c n reserve the book. Before reserving Book for someone the Libr ry check, for students, with the Registr r, if the Student is currently enrolled, nd for employees, with Hum n Resources if the employee h s n ctive contr ct. a a a a a a a a a a a ff a a a a a 45 a a Problem
45. • Students nd St members c n request the Libr ry to notify him/her when Book becomes v il ble. • Also, they c n reserve the book. Before reserving Book for someone the Libr ry check, for students, with the Registr r, if the Student is currently enrolled, nd for employees, with Hum n Resources if the employee h s n ctive contr ct. a a a a a a a a a a a ff a a a a a 46 a a Solution
46. Problem 47
47. Problem 48
48. Problem 49
49. Application 50
50. Shape Decorator 0 51 1 2 3 0
51. Shape Decorator 0 52 1 2 3 0
52. Test Yourselves Utilities
53. pom.xml … 54
54. Questions 55
55. CSC 307 Introduction to Software Engineering Javier Gonzalez-Sanchez, Ph.D. javiergs@calpoly.edu Winter 2026 Copyright. These slides can only be used as study material for the class CSC307 at Cal Poly. They cannot be distributed or used for another purpose.