97 Things Every Java Programmer Should Know - Collective wisdom from the experts.

420 Pages·2020·25.585 MB·English

by  Trisha Gee, Kevlin Henney.

1. Preface
a. Permissions
b. O’Reilly Online Learning
c. How to Contact Us
d. Acknowledgments
2. 1. All You Need Is Java
a. Anders Norås
3. 2. Approval Testing
a. Emily Bache
4. 3. Augment Javadoc with AsciiDoc
a. James Elliott
5. 4. Be Aware of Your Container Surroundings
a. David Delabassee
6. 5. Behavior Is “Easy”; State Is Hard
a. Edson Yanaga
7. 6. Benchmarking Is Hard—JMH Helps
a. Michael Hunger
8. 7. The Benefits of Codifying and Asserting Architectural
Quality
a. Daniel Bryant
9. 8. Break Problems and Tasks into Small Chunks
a. Jeanne Boyarsky
10. 9. Build Diverse Teams
a. Ixchel Ruiz
11. 10. Builds Don’t Have To Be Slow and Unreliable
a. Jenn Strater
12. 11. “But It Works on My Machine!”
a. Benjamin Muschko
13. 12. The Case Against Fat JARs
a. Daniel Bryant
14. 13. The Code Restorer
a. Abraham Marin-Perez
15. 14. Concurrency on the JVM
a. Mario Fusco
16. 15. CountDownLatch—Friend or Foe?
a. Alexey Soshin
17. 16. Declarative Expression Is the Path to Parallelism
a. Russel Winder
18. 17. Deliver Better Software, Faster
a. Burk Hufnagel
19. 18. Do You Know What Time It Is?
a. Christin Gorman
20. 19. Don’t hIDE Your Tools
a. Gail Ollis
21. 20. Don’t Vary Your Variables
a. Steve Freeman
i. Assign Once
ii. Localize Scope
22. 21. Embrace SQL Thinking
a. Dean Wampler
23. 22. Events Between Java Components
a. A.Mahdy AbdelAziz
24. 23. Feedback Loops
a. Liz Keogh
25. 24. Firing on All Engines
a. Michael Hunger
26. 25. Follow the Boring Standards
a. Adam Bien
27. 26. Frequent Releases Reduce Risk
a. Chris O’Dell
i. What Is Risk?
ii. Large, Infrequent Releases Are Riskier
28. 27. From Puzzles to Products
a. Jessica Kerr
29. 28. “Full-Stack Developer” Is a Mindset
a. Maciej Walkowiak
30. 29. Garbage Collection Is Your Friend
a. Holly Cummins
31. 30. Get Better at Naming Things
a. Peter Hilton
32. 31. Hey Fred, Can You Pass Me the HashMap?
a. Kirk Pepperdine
33. 32. How to Avoid Null
a. Carlos Obregón
i. Avoid Initializing Variables to Null
ii. Avoid Returning Null
iii. Avoid Passing and Receiving Null
Parameters
iv. Acceptable Nulls
34. 33. How to Crash Your JVM
a. Thomas Ronzon
35. 34. Improving Repeatability and Auditability with
Continuous Delivery
a. Billy Korando
i. Repeatable
ii. Auditable
36. 35. In the Language Wars, Java Holds Its Own
a. Jennifer Reif
i. My History with Java
ii. Java’s Design and Background
iii. Java’s Downsides
iv. Why I Like Java
v. What Does It Mean for Developers?
37. 36. Inline Thinking
a. Patricia Aas
38. 37. Interop with Kotlin
a. Sebastiano Poggi
39. 38. It’s Done, But…
a. Jeanne Boyarsky
i. 1. Communication and Clarity
ii. 2. Perception
iii. 3. There’s No Partial Credit for Done
40. 39. Java Certifications: Touchstone in Technology
a. Mala Gupta
41. 40. Java Is a ’90s Kid
a. Ben Evans
42. 41. Java Programming from a JVM Performance
Perspective
a. Monica Beckwith
i. Tip #1: Don’t Obsess Over Garbage
ii. Tip #2: Characterize and Validate Your
Benchmarks
iii. Tip #3: Allocation Size and Rate Still
Matter
iv. Tip #4: An Adaptive JVM Is Your Right
and You Should Demand It
43. 42. Java Should Feel Fun
a. Holly Cummins
44. 43. Java’s Unspeakable Types
a. Ben Evans
45. 44. The JVM Is a Multiparadigm Platform: Use This to
Improve Your Programming
a. Russel Winder
46. 45. Keep Your Finger on the Pulse
a. Trisha Gee
47. 46. Kinds of Comments
a. Nicolai Parlog
i. Javadoc Comments for Contracts
ii. Block Comments for Context
iii. Line Comments for Weird Things
iv. Last Words
48. 47. Know Thy flatMap
a. Daniel Hinojosa
49. 48. Know Your Collections
a. Nikhil Nanivadekar
50. 49. Kotlin Is a Thing
a. Mike Dunn
51. 50. Learn Java Idioms and Cache in Your Brain
a. Jeanne Boyarsky
52. 51. Learn to Kata and Kata to Learn
a. Donald Raab
53. 52. Learn to Love Your Legacy Code
a. Uberto Barbini
54. 53. Learn to Use New Java Features
a. Gail C. Anderson
55. 54. Learn Your IDE to Reduce Cognitive Load
a. Trisha Gee
56. 55. Let’s Make a Contract: The Art of Designing a Java
API
a. Mario Fusco
57. 56. Make Code Simple and Readable
a. Emily Jiang
58. 57. Make Your Java Groovier
a. Ken Kousen
59. 58. Minimal Constructors
a. Steve Freeman
60. 59. Name the Date
a. Kevlin Henney
61. 60. The Necessity of Industrial-Strength Technologies
a. Paul W. Homer
62. 61. Only Build the Parts That Change and Reuse the Rest
a. Jenn Strater
63. 62. Open Source Projects Aren’t Magic
a. Jenn Strater
64. 63. Optional Is a Lawbreaking Monad but a Good Type
a. Nicolai Parlog
i. Monad Definition
ii. Monad Laws
iii. So What?
65. 64. Package-by-Feature with the Default Access Modifier
a. Marco Beelen
66. 65. Production Is the Happiest Place on Earth
a. Josh Long
67. 66. Program with GUTs
a. Kevlin Henney
68. 67. Read OpenJDK Daily
a. Heinz M. Kabutz
69. 68. Really Looking Under the Hood
a. Rafael Benevides
70. 69. The Rebirth of Java
a. Sander Mak
71. 70. Rediscover the JVM Through Clojure
a. James Elliott
72. 71. Refactor Boolean Values to Enumerations
a. Peter Hilton
73. 72. Refactoring Toward Speed-Reading
a. Benjamin Muskalla
74. 73. Simple Value Objects
a. Steve Freeman
75. 74. Take Care of Your Module Declarations
a. Nicolai Parlog
i. Keep Module Declarations Clean
ii. Comment Module Declarations
iii. Review Module Declarations
76. 75. Take Good Care of Your Dependencies
a. Brian Vermeer
i. Vulnerable Dependencies