Step 1: Install Java Development Kit (JDK)

https://www.oracle.com/in/java/technologies/downloads/#java17

Step 2: Install IntelliJ IDEA

Download IntelliJ IDEA from https://www.jetbrains.com/idea/download/. Choose the Community edition (free version).

Once installed, open IntelliJ IDEA and configure it as follows:

Open Settings (or Preferences on macOS) and go to Plugins. Make sure you have the following plugins enabled:

• Maven
• Spring Boot
• Java

You may also need to configure the JDK:

Go to File > Project Structure. Under Project Settings > Project, set the Project SDK to JDK 17 (or the version you installed).