Developing Applications with IntelliJ IDEA (The Course)
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Course Info

This course includes 3 attempts.

This is a hands-on course based on Part III of the book Getting to Know IntelliJ IDEA. This course will take you through tutorials to show you exactly where your fingers need to be in order to get the most out of using IntelliJ IDEA to build real-world applications. We assume you already have a good handle on the basics of writing code. If you need to build these skills or want a refresher, look at our Working With Code in IntelliJ IDEA course.

This course is a great way to learn how best to use the New UI in IntelliJ IDEA.

In Developing Applications with IntelliJ IDEA you'll learn:

  • The options for opening different types of projects, including getting them from a version control server.
  • Different ways to run an application inside IntelliJ IDEA, so you can pick an approach that works for your workflow.
  • How IntelliJ IDEA's debugger can help you see an application's state - and how it changes - while it's running.
  • How to use tests to drive the design and implementation of a small application, and see how IntelliJ IDEA helps you to write correct code.
  • The best way to combine automated tests with debugging to troubleshoot problems without having to debug the whole application.
  • How to add a new dependency to your project, so you can use external libraries.
  • Using build tools such as Maven or Gradle with your project.
  • The easiest way to use a version control system like Git with IntelliJ IDEA to track versions of your project code.



  • Computers and Programming
  • Java
  • Software
  • Git
  • Automated Software Testing
  • IDEs

Course Material

  • Introduction
  • Signposts to look out for
  • A note about versions
  • A note about shortcuts
  • Opening a project
  • IntelliJ IDEA’s view of your project
  • Finding your code
  • How IntelliJ IDEA uses your project’s build tool
  • Cloning a project from GitHub
  • Take the quiz
  • icon/quiz Created with Sketch.
    Quiz: Opening a project3 attempts allowed
  • Running your code
  • Running an application
  • Re-running an application
  • Terminating a process
  • Take the quiz
  • icon/quiz Created with Sketch.
    Quiz: Running your code3 attempts allowed
  • Debugging your code
  • Identifying the problem
  • Setting breakpoints
  • Understanding what the debugger is telling you
  • Step into, step over and resume debugging
  • Running the updated code
  • Take the quiz
  • icon/quiz Created with Sketch.
    Quiz: Debugging your code3 attempts allowed
  • Testing your code
  • Creating a new test class
  • Checking the dependency on the testing framework
  • Creating a new test method
  • Running your test
  • A quick discussion of automated testing
  • Take the quiz
  • icon/quiz Created with Sketch.
    Quiz: Testing your code3 attempts allowed
  • Combining testing and debugging
  • Create a failing test that demonstrates the problem
  • Identifying the cause
  • Fixing the problem
  • Take the quiz
  • icon/quiz Created with Sketch.
    Quiz: Combining testing and debugging3 attempts allowed
  • Managing dependencies
  • Why do you need dependency management?
  • Seeing your project’s dependencies
  • Adding dependencies
  • Take the quiz
  • icon/quiz Created with Sketch.
    Quiz: Managing Dependencies3 attempts allowed
  • Working with a build tool
  • The tool window for your build tool
  • A view of your project’s build tool
  • Running the build
  • Finding your build configuration
  • Take the quiz
  • icon/quiz Created with Sketch.
    Quiz: Working with a build tool3 attempts allowed
  • Keeping track of code changes
  • Enabling Version Control (Git)
  • Committing changes
  • The Git tool window
  • Seeing code changes
  • What to look for when you’re ready to commit your code
  • Working with remote version control
  • Your last line of defence
  • Take the quiz
  • icon/quiz Created with Sketch.
    Quiz: Keeping track of code changes3 attempts allowed
  • Summary of keyboard shortcuts
  • Full List of Keyboard Shortcuts
  • Wrap Up


    • Trisha is a software engineer, Java Champion and author. Trisha has developed Java applications for a range of industries of all sizes, including finance, manufacturing and non-profit, and she lead the Java Advocacy Team at JetBrains. She has expertise in Java high-performance systems and dabbles with Open Source development.

      Trisha’s exceptionally passionate about sharing things that help real developers. That might be: getting them up to speed on the latest version of Java; teaching them tips and tricks to save time with IntelliJ IDEA; or promoting healthy technical communities across the globe. Trisha values helping all developers level up their career and skills at every step of their journey.

      Read more from Trisha in the books “Head First Java”, “97 Things Every Java Developer Should Know” and “What to Look for in a Code Review”.

    • Helen is passionate about all things technology and loves working with the development community to help them be awesome. Helen believes that content creation and communication are the best ways to engage with the community and help everyone learn together.

      Helen has worked at numerous software companies and has experienced the highs and lows of the software development cycle at all stages. Helen loves to learn new tools and technologies and share that journey of exploration.

      Helen has a Computer Science degree from The University of Sussex and a Diploma in Technical Communications from Sheffield Hallam University.

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