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Installing IntelliJ IDEA CE 2017.2
Download the right version for your operating system of the IntelliJ IDEA Community Edition. We are going to use 2017.2.2 available at https://www.jetbrains.com/idea/download/.
IntelliJ IDEA is developed by JetBrains which is the company behind the creation of Kotlin. It will work very effectively with our microservices, however other IDEs such as Eclipse, could work as well. The Community Edition is under Apache 2.0 license and could be used to create any kind of application, including commercial and corporate software, more details are in http://www.jetbrains.org/display/IJOS/FAQ#FAQ-CommunityEdition.
Follow the default installation steps, and when you're finished, open IntelliJ IDEA CE then from the Welcome window, click on the Configure button at the bottom right of the screen and then Project Defaults | Project Structure.
IntelliJ IDEA Welcome Window
In the new window, click on the left-hand side Project and in the Project SDK option on the right-hand side, click on new, then choose JDK and browse on your jdk-install-dir.
With this final step, everything should be set up to start creating microservices; for this, we will use Spring Initializr.