Putting the AI in JetBrAIns

Over the past year, JetBrains has been working actively in bringing AI support to the many products and services it offers. In this talk we’re going to take a look at what IntelliJ IDEA offers in terms of AI support, and how it works under the cover. Your favourite IDE just got a whole lot smarter, which means you can become much more productive!

Transcript

1. Putting the AI in JetBrAIns Marit van Dijk Developer Advocate
2. https://blog.jetbrains.com/blog/2023/12/06/introducing-jetbrains-ai-and-the-in-ide-ai-assistant/
3. https://www.youtube.com/watch?v=SN51H_q9wBg
4. AI has always been a part of JetBrAIns
 — https://www.youtube.com/watch?v=-NnYtfzO7qU
5. Our approach to building AI Assistant into our products has been focused on two main aspects: 1. Weaving the AI assistance into the core IDE user workflows. 2. Building AI features that are deeply infused with an understanding of your code and its context, which has always been a strong suit of JetBrains IDEs. Introducing JetBrains AI
7. With AI Assistant, you can: • Chat, ask questions, and refine solutions. • Generate code, tests, commit messages, documentation, and code translations. • Explain code, commits, runtime errors, SQL queries, regexes and cron fragments. • Suggest names, refactor, and find issues. • Resolve merge conflicts, write SQL queries for your database, generate commands in the New Terminal Features
8. Generate and improve commit messages, explain commit(s), resolve merge conflicts Continue prompting, add context & commands Generate, explain, refactor code, write tests & documentation Ask questions, edit & save prompts, see context, use code Explain runtime errors, write commands in new terminal, get help with SQL queries in console
9. JetBrains AI Assistant
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10. Plugin
11. Chat
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12. Chat • LLMs are good at chat 😁 • We can • Ask how to do things • Ask follow up questions
13. Chat • Integrated into the IDE • Context aware • Can call back to the IDE
14. Chat • Ask about your project • Ask VCS related questions
15. Chat • Dump chat - see the context
16. Chat • Can add additional context
17. Chat • Can add additional context • Tag files, symbols & more
18. Code from chat • Use code from chat: • Copy to Clipboard • Insert Snippet at Caret • Create File from Snippet
19. Chat • Edit original prompt
20. Chat • Edit original prompt
21. Prompts
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22. AI Actions • Predefined prompts • Available where you code • Can add your own!
23. Explain Code
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24. Explain code Selected code added to prompt
25. Explain code Files added to prompt x
26. Explain RegExp fragment
27. Explain cron fragment
28. Explain Spring Data QL fragment
29. Chat about code
30. Find and fix problems
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31. Find problems
32. Find problems In commit
33. Refactoring
34. Refactor | Rename • Now with AI generated suggestions!
35. Explain Runtime Error
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36. Main point
37. Custom prompts
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38. AI Actions Add Your Prompts...
39. AI Actions Add Your Prompts...
40. AI Actions Add Your Prompts...
41. Custom prompts • Save Current Prompt from chat
42. Custom prompts • Show in AI Actions • Use from chat
43. Code generation is important
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44. Code completion • Auto completion while typing • with syntax highlighting
45. Code completion Cloud completion Local completion
46. Code completion • Shortcut for auto completion
47. Code completion • Shortcut to generate code • According to your prompt
48. Code completion • Generate code in editor • Can add a follow-up message
49. Code completion • Note: Might need small fixes • (Alt+Enter is your friend)
50. AI Actions Generate Code...
51. AI Actions Generate Code...
52. AI Actions Generate
53. Documentation Write Documentation
54. Tests Generate Unit Tests
55. Tests Generate Unit Tests
56. Work with VCS
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57. Generate commit message • In the commit tool window • According to default prompt
58. Customize commit message generation
59. Customize commit message generation
60. Improve commit message • Only for commits you haven't pushed!
61. Explain commit • Summarize changes in commit(s)
62. Resolve merge conflicts
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63. Resolve merge conflicts
64. Resolve merge conflicts
65. Resolve merge conflicts
66. New Terminal
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67. New Terminal • Currently in beta • Enable in Settings > Tools > Terminal
68. Use AI Assistant in the New Terminal • Ask AI Assistant to generate command
69. Use AI Assistant in the New Terminal • Ask AI Assistant to generate command
70. Use AI Assistant in the New Terminal • Ask AI Assistant to generate command • And run the command
71. Help with queries —
72. Use AI Assistant to generate queries
73. Use AI Assistant to generate queries
74. Use AI Assistant to generate queries
75. Use AI Assistant to generate queries
76. Use AI Assistant to generate queries • Attach database schema • Might still need small fixes • IntelliJ IDEA has DB support
77. Use AI Assistant to generate queries
78. Convert language —
79. Convert File to Another Language
80. Let's look at an example —
81. Photography EV = Exposure value t = Exposure time N = Focal number = focal lenght / diameter of aperture EV = log2 N2 t
82. Photography • Let's assume we have some code • The code is not perfect
83. Photography • Explain code
84. Photography • Integrated into the IDE • Can use it from the editor; no tool-switching • But doesn't always get the context • Let's give it a hint
85. Photography • Rename method ev to exposure
86. Photography • Let's ask again • We can use specific instructions...
87. Photography • Side note: options to use the code
88. Photography ... or use predefined prompt: • Suggest Refactoring
89. Photography Side note: options to use the code, includes Show Diff
90. Photography
91. Photography • Note this refactor includes renaming • Can also use Refactor > Rename • (especially if variables are used outside this file)
92. Photography • Ask for real world scenarios • (Prompt engineering is a thing)
93. Photography • Convert to JUnit 5 tests • with expressive names
94. Photography • including exceptions and edge cases • (Unlike some developers...)
95. Photography • Might need some small fixes • Add JUnit 5
96. Photography • Might need some small fixes • Add JUnit 5 • Import statements
97. Photography • The numbers don't add up
98. Photography Large Language Models ... are not good at math https://www.youtube.com/watch?v=0xENpeGTEZ0
99. Photography • Get real world data • Talk to some users
100. Photography • AI Actions > Generate unit tests
101. Photography • Tests generated in existing test file or new file
102. Photography • Add additional specifications...
103. Photography ... for better results
104. Photography These tests also fail.. (Remember: LLMs are not good at math)
105. Photography But are generated in the right place
106. Photography • You can specify how to generate unit tests • Customize prompt in Settings: • Tools > AI Assistant > Prompt Library
107. Photography • Generate commit message
108. Productivity —
109. AI Assistant • Can save time • Boilerplate code / typing • Tasks we don't like to do • Understanding existing code!
110. Productivity boost https://blog.jetbrains.com/ai/2024/04/developers-save-up-to-8-hours-per-week-with-jetbrains-ai-assistant/
111. Time saved https://blog.jetbrains.com/ai/2024/04/developers-save-up-to-8-hours-per-week-with-jetbrains-ai-assistant/
112. Productivity boost https://blog.jetbrains.com/ai/2024/04/developers-save-up-to-8-hours-per-week-with-jetbrains-ai-assistant/
113. Top 5 Features https://blog.jetbrains.com/ai/2024/04/developers-save-up-to-8-hours-per-week-with-jetbrains-ai-assistant/
114. Top 5 Features Personal observation: This does not include generating code! https://blog.jetbrains.com/ai/2024/04/developers-save-up-to-8-hours-per-week-with-jetbrains-ai-assistant/
115. The journey —
116. JetBrains AI Service API API Security & Anti-Fraud 3rd Party LLM API Plugin Project Context
117. https://blog.jetbrains.com/blog/2024/04/04/full-line-code-completion-in-jetbrains-ides-all-you-need-to-know/
118. https://www.youtube.com/watch?v=DLBiJ5kYUFg Full line code completion
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119. JetBrains AI Service API API Security & Anti-Fraud 3rd Party LLM API Plugin Project Context FLCC Context
120. JetBrains AI Service Kotlin LM API API Security & Anti-Fraud 3rd Party LLM API Plugin Project Context FLCC Context
121. https://www.youtube.com/watch?v=1ipJ-tdcmwE
122. https://www.jetbrains.com/ai/enterprise/ JetBrains AI Enterprise
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123. https://www.jetbrains.com/ai/enterprise/ JetBrains AI Enterprise
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124. JetBrains AI Service Kotlin LM API API Security & Anti-Fraud API Plugin Project Context FLCC Context Alibaba (China) API API
125. https://blog.jetbrains.com/idea/2024/09/intellij-idea-2024-3-eap-3/ New features
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126. More information —
127. https://www.jetbrains.com/ai/
128. https://www.jetbrains.com/ai/
129. https://www.jetbrains.com/ai/enterprise/
130. https://www.jetbrains.com/guide/ai/
131. Slides & more — https://maritvandijk.com/presentations/putting-the-ai-in-jetbrains/
132. Thank you! Marit van Dijk Developer Advocate