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On Windows, you can download either an installer (EXE) or a Zip package.I recommend you to try the Ultimate edition to experience the full features of IntelliJ IDEA in 30 days.
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will see the following screen: Here, you can download the Ultimate edition or Community edition for Windows, Mac or Linux. That means the IDE is running on its own JRE and requires a separate JDK for Java development.Click this URL to open the download page: In this lesson, I will guide you how to download and install IntelliJ IDEA on Windows operating system.Although IntelliJ IDEA is bundled with JRE 8, you still need to have JDK 8 or higher installed on your computer first. Note that your computer should have at least 4GB of RAM to run the IDE smoothly.
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Like Eclipse and NetBeans, it’s pretty easy to download, install, and get IntelliJ IDEA up and running to start coding.
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