Getting to Know IntelliJ IDEA
Getting to Know IntelliJ IDEA
Level up your IntelliJ IDEA knowledge so that you can focus on doing what you do best.
About the Book
Tips and tricks designed to help you level up, whether you're just starting with IntelliJ IDEA or you've been a user for a while. Written with junior and senior developers in mind.
About the Authors
Table of Contents
- Dedication
- About the Authors
- Helen Scott
- Trisha Gee
- Why We Wrote This Book
- Getting the most from this book
- Who should read this book
- Signposts to Look Out For
- A Note About Shortcuts
- Feedback
- Acknowledgements
- Technical Reviewers
- Cover Design
- Part I: Getting to Know IntelliJ IDEA
- Chapter 1. How Can IntelliJ IDEA Help You?
- Chapter 2. The IntelliJ IDEA Mindset
- 2.1. Always Green
- 2.2. Keyboard First
- 2.3. In the Flow
- Chapter 3. Installing IntelliJ IDEA
- Chapter 4. IntelliJ IDEA Out of the Box
- 4.1. Welcome Screen
- 4.2. Tip of the Day
- 4.3. New Feature Notifications
- 4.4. Balloon Notifications
- 4.5. Toolbar Buttons
- 4.6. Tool Windows
- 4.7. Navigation Bar
- 4.8. Editor Tabs
- 4.9. Breadcrumbs
- 4.10. Status Bar
- 4.11. Dialogs
- 4.12. After Upgrading
- Chapter 5. Where to Look
- 5.1. In The Editor
- 5.2. In Your Wider Project
- Chapter 6. How IntelliJ IDEA Sees Your Project
- 6.1. IntelliJ IDEA’s Internal Map
- 6.2. What is an IntelliJ IDEA Project?
- 6.3. Finding Your Code
- 6.4. Projects and Workspaces
- 6.5. Establishing Version Control Status
- 6.6. IntelliJ IDEA Ultimate Framework support
- 6.7. Plugins and What They Give You
- Part II: Working with Code
- Chapter 7. Writing Code in IntelliJ IDEA
- Chapter 8. Staying in the flow with code completion & generation
- 8.1. Basic completion
- 8.2. Smart completion
- 8.3. Postfix completion
- 8.4. Complete statement
- 8.5. Live templates
- 8.6. Generate new (file templates)
- 8.7. Generate from error or warning
- Chapter 9. Always Green with Intelligent Suggestions
- 9.1. How can I tell if IntelliJ IDEA has a suggestion?
- 9.2. Fix Errors
- 9.3. Improve Code
- 9.4. Change Code
- 9.5. Spelling
- Chapter 10. Think "Keyboard First" with Editor tips
- 10.1. Must Have Shortcuts
- 10.2. Selecting Code
- 10.3. Convenience Shortcuts
- 10.4. Formatting
- 10.5. Arranging Your Code
- Chapter 11. How to Move Through Your Code
- 11.1. Finding Anything
- 11.2. Viewing and Opening Recent Files
- 11.3. Viewing and Moving to Recent Locations
- 11.4. Moving Forward and Backward through code
- 11.5. Moving between your Class and its Test
- 11.6. Finding Where This Code is Used
- Chapter 12. Working with Dependencies
- 12.1. Understanding the terminology
- 12.2. Seeing your Project’s Dependencies
- 12.3. Adding dependencies with Maven or Gradle
- 12.4. Updating Dependencies with Maven or Gradle
- 12.5. Adding Dependencies Without a dependency management tool
- Chapter 13. Keeping Track of Code Changes
- Chapter 14. Enable Version Control (Git)
- 14.1. Git Log Window
- 14.2. What happens when you change code under version control
- 14.3. What to look for when you’re ready to commit code
- 14.4. Experimenting in a safe place (branching)
- 14.5. Merging your successful experiment back into the main branch
- 14.6. Deleting an unsuccessful experiment, or unused branch
- 14.7. Going back to an older version of your file
- 14.8. Your last line of defence
- 14.9. Getting code from version control (GitHub)
- Chapter 15. Reading Code
- 15.1. Inlay Hints
- 15.2. Quick Definition and Documentation
- 15.3. Javadocs
- 15.4. Code Folding
- 15.5. Code Analysis
- 15.6. Language Injection
- 15.7. Navigation
- 15.8. Version Control
- 15.9. Automated tests
- Part III: Running, Debugging and Testing
- Chapter 16. Running Your Code
- Chapter 17. Getting Started with Debugging
- 17.1. In Summary
- Chapter 18. Getting Started with Testing
- 18.1. A Quick Discussion of Types of Testing
- Chapter 19. Combining Testing and Debugging
- Chapter 20. Running with Build Tools
- Chapter 21. Understanding what you’re running
- 21.1. What is a Run Configuration?
- 21.2. How do I… pass arguments into my application?
- 21.3. How do I… set environment variables?
- 21.4. How do I… set JVM arguments?
- 21.5. How do I… share my settings with my team?
- 21.6. Run Anything
- Part IV: IntelliJ IDEA Essentials
- Chapter 22. What an IDE gives you
- Chapter 23. Refactoring your code
- 23.1. Renaming
- 23.2. Extracting and Inlining
- 23.3. Change a method’s signature
- 23.4. Move statement
- 23.5. Data flow analysis
- 23.6. Safe delete
- 23.7. Language level migration
- 23.8. Using Inspections and intentions
- 23.9. Intentions
- Chapter 24. Formatting your code
- 24.1. Formatting whole or part of a file
- 24.2. Code Format Settings
- 24.3. Using Alt+Enter to see and change relevant code style settings
- 24.4. Using EditorConfig files
- 24.5. Reformat on commit
- 24.6. Rearranging code in your classes
- Chapter 25. Using Multiple Clipboards
- Chapter 26. Diving into debugging
- 26.1. Viewing specific variable interaction by setting breakpoints
- 26.2. Tailoring the debugger for my use case
- 26.3. Viewing data from different parts of the application
- 26.4. Running "What if?" scenarios in my debugger
- Chapter 27. Expanding on Testing
- Chapter 28. How much of my code is being tested?
- 28.1. What are you really running?
- 28.2. Navigating between my code and test code
- 28.3. Testing with continuous integration
- 28.4. Testing callouts for Maven and Gradle
- 28.5. When is testing code 'unused'?
- Chapter 29. Why do you need dependency management?
- 29.1. Accessing your build tool
- 29.2. Importing a project that uses a build tool
- 29.3. Building a project that uses a build tool
- 29.4. Compiling and running a project that uses a build tool
- 29.5. Looking at your build output
- 29.6. Where to see your dependencies
- 29.7. Using the build tool window
- 29.8. Making Changes to your Build Configuration
- Chapter 30. Version Control Matters
- 30.1. Why Work with a Version Control System
- 30.2. The Git Tool Window
- 30.3. Merge or Rebase
- Chapter 31. Your .gitignore file
- 31.1. Files to exclude based on your build tool
- 31.2. Additional IntelliJ IDEA setting files to add to your .gitignore file
- Chapter 32. Local history
- Chapter 33. TODOs
- Chapter 34. Code With Me
- 34.1. Why Code With Me?
- 34.2. Using Code With Me
- Chapter 35. Installing Plugins
- Chapter 36. IntelliJ IDEA and Java
- Chapter 37. The Structure of Your Project
- 37.1. The Language Level in your Project
- 37.2. Modules in your Project
- Chapter 38. Looking in your .idea folder
- 38.1.
.ideafolder contents
- 38.1.
- Chapter 39. Changing IntelliJ IDEA Settings
- 39.1. Preferences/Settings dialog
- 39.2. Preferences/Settings in the Search Everywhere dialog
- Chapter 40. Getting Help
- 40.1. Online Help
- 40.2. IntelliJ IDEA YouTube
- 40.3. IntelliJ IDEA Blog
- 40.4. IntelliJ IDEA Community Forums
- 40.5. StackOverflow
- 40.6. YouTrack
- Chapter 41. Getting to Know IntelliJ IDEA Summary
- Appendix A: Background & History
- A.1. What are the differences between the Community and Ultimate versions?
- A.2. Who makes IntelliJ IDEA?
- Appendix B: Top keyboard shortcuts
- Chapter 42. "Must Know" Shortcuts
- 42.1. Context Actions
- 42.2. Search Everywhere
- 42.3. Reset
- Chapter 43. Coding
- 43.1. Smart Completion
- 43.2. Complete Current Statement
- 43.3. Navigate to Errors and Warnings
- 43.4. Format File
- Chapter 44. Navigation
- 44.1. Recent Files
- 44.2. Recent Locations
- Chapter 45. Running and Debugging
- 45.1. Run Anything
- 45.2. Terminate Process
- Chapter 46. How do I configure my own shortcuts and abbreviations?
- Chapter 47. Summary
The Leanpub 60-day 100% Happiness Guarantee
Within 60 days of purchase you can get a 100% refund on any Leanpub purchase, in two clicks.
See full terms
Do Well. Do Good.
Authors have earned$11,710,555writing, publishing and selling on Leanpub, earning 80% royalties while saving up to 25 million pounds of CO2 and up to 46,000 trees.
Learn more about writing on Leanpub
Free Updates. DRM Free.
If you buy a Leanpub book, you get free updates for as long as the author updates the book! Many authors use Leanpub to publish their books in-progress, while they are writing them. All readers get free updates, regardless of when they bought the book or how much they paid (including free).
Most Leanpub books are available in PDF (for computers), EPUB (for phones and tablets) and MOBI (for Kindle). The formats that a book includes are shown at the top right corner of this page.
Finally, Leanpub books don't have any DRM copy-protection nonsense, so you can easily read them on any supported device.
Learn more about Leanpub's ebook formats and where to read them
Top Books
- #1
Recipes for Decoupling
Matthias NobackWrite software that survives
- #2
CQRS by Example
Carlos Buenosvinos, Christian Soronellas, and Keyvan Akbary- Leverage your Software Architecture skills by learning everything about CQRS in detail with lots of examples
- Develop faster applications by applying CQRS and fostering Read Models and Projections
- Learn how to apply CQRS into a brownfield project from a pragmatic approach
- #3
OpenIntro Statistics
David Diez, Christopher Barr, Mine Cetinkaya-Rundel, and OpenIntroA complete foundation for Statistics, also serving as a foundation for Data Science.
Leanpub revenue supports OpenIntro (US-based nonprofit) so we can provide free desk copies to teachers interested in using OpenIntro Statistics in the classroom and expand the project to support free textbooks in other subjects.
More resources: openintro.org.
- #4
Ansible for DevOps
Jeff GeerlingAnsible is a simple, but powerful, server and configuration management tool. Learn to use Ansible effectively, whether you manage one server—or thousands.
- #5
Maîtriser Apache JMeter
Philippe Mouawad, Bruno Demion (Milamber), and Antonio Gomes RodriguesToute la puissance d'Apache JMeter expliquée par ses commiteurs et utilisateurs experts. De l'intégration continue en passant par le Cloud, vous découvrirez comment intégrer JMeter à vos processus "Agile" et Devops.
If you're looking for the newer english version of this book, go to Master JMeter : From load testing to DevOps
- #6
Functional Event-Driven Architecture
Gabriel VolpeExplore the event-driven architecture (EDA) in a purely functional way. Learn to design and develop distributed systems that scale. Identify common design patterns in such systems.
Take your functional programming skills to the next level by joining me in developing a distributed system powered by Apache Pulsar and Fs2 streams, all in Scala 3!
- #7
C++20 - The Complete Guide
Nicolai M. JosuttisAll new language and library features of C++20 (for those who know previous C++ versions).
The book presents all new language and library features of C++20. Learn how this impacts day-to-day programming, to benefit in practice, to combine new features, and to avoid all new traps.
Buy early, pay less, free updates.
Other books:
- #8
On Java 8
Bruce EckelBy the author of "Thinking in Java," covering version 8 of the Java programming language (with updates to Java 17). Intended for “dedicated beginners,” it doesn’t assume you know anything about programming and takes you through the material step-by-step. However, I assume you are able to figure things out. It’s not a “dummies” or “idiot’s” guide.
- #9
Jetpack Compose internals
Jorge CastilloJetpack Compose is the future of Android UI. Master how it works internally and become a more efficient developer with it. You'll also find it valuable if you are not an Android dev. This book provides all the details to understand how the Compose compiler & runtime work, and how to create a client library using them.
- #10
The C4 model for visualising software architecture
Simon BrownA guide to visualising your software architecture with the C4 model.
Top Bundles
- #1
Software Architecture
2 Books
"Software Architecture for Developers" is a practical and pragmatic guide to modern, lightweight software architecture, specifically aimed at developers. You'll learn:The essence of software architecture.Why the software architecture role should include coding, coaching and collaboration.The things that you really need to think about before... - #2
CCIE Service Provider Ultimate Study Bundle
2 Books
Piotr Jablonski, Lukasz Bromirski, and Nick Russo have joined forces to deliver the only CCIE Service Provider training resource you'll ever need. This bundle contains a detailed and challenging collection of workbook labs, plus an extensively detailed technical reference guide. All of us have earned the CCIE Service Provider certification... - #4
Pattern-Oriented Memory Forensics and Malware Detection
2 Books
This training bundle for security engineers and researchers, malware and memory forensics analysts includes two accelerated training courses for Windows memory dump analysis using WinDbg. It is also useful for technical support and escalation engineers who analyze memory dumps from complex software environments and need to check for possible... - #7
All the Books of The Medical Futurist
6 Books
We put together the most popular books from The Medical Futurist to provide a clear picture about the major trends shaping the future of medicine and healthcare. Digital health technologies, artificial intelligence, the future of 20 medical specialties, big pharma, data privacy, digital health investments and how technology giants such as Amazon... - #8
Practical FP in Scala + Functional event-driven architecture
2 Books
Practical FP in Scala (A hands-on approach) & Functional event-driven architecture, aka FEDA, (Powered by Scala 3), together as a bundle! The content of PFP in Scala is a requirement to understand FEDA so why not take advantage of this bundle!? - #9
The Python Craftsman
3 Books
The Python Craftsman series comprises The Python Apprentice, The Python Journeyman, and The Python Master. The first book is primarily suitable for programmers with some experience of programming in another language. If you don't have any experience with programming this book may be a bit daunting. You'll be learning not just a programming...
