Setting up your development environment is the first step to start working with Spring Boot. This module will guide you through the necessary tools and configurations to get your environment ready for developing Spring Boot applications.

Before you start, ensure you have the following installed on your system:

• Java Development Kit (JDK) 8 or higher: Spring Boot requires JDK 8 or later. You can download it from Oracle's official website or use an open-source alternative like AdoptOpenJDK.
• Integrated Development Environment (IDE): An IDE like IntelliJ IDEA, Eclipse, or Visual Studio Code is recommended for developing Spring Boot applications. IntelliJ IDEA is highly recommended due to its excellent support for Spring Boot.
• Maven or Gradle: These are build tools used to manage dependencies and build your project. Maven is more commonly used with Spring Boot, but Gradle is also supported.

1. Download JDK: Go to the Oracle JDK download page and download the installer for Windows.
2. Install JDK: Run the installer and follow the on-screen instructions.
3. Set Environment Variables:
   • Open the Start Menu and search for "Environment Variables".
   • Click on "Edit the system environment variables".
   • In the System Properties window, click on "Environment Variables".
   • Under System Variables, click "New" and add JAVA_HOME with the path to your JDK installation (e.g., C:\Program Files\Java\jdk-14).
   • Find the Path variable, click "Edit", and add %JAVA_HOME%\bin.

1. Download JDK: Go to the Oracle JDK download page and download the installer for macOS.
2. Install JDK: Open the downloaded .dmg file and follow the instructions to install JDK.
3. Set Environment Variables:
   • Open Terminal.
   • Edit your shell profile file (e.g., ~/.bash_profile or ~/.zshrc) and add the following lines:

     export JAVA_HOME=$(/usr/libexec/java_home)
     export PATH=$JAVA_HOME/bin:$PATH
     

   • Save the file and run source ~/.bash_profile or source ~/.zshrc to apply the changes.

1. Install JDK: Open Terminal and run the following commands:

   sudo apt update
   sudo apt install openjdk-11-jdk
   

2. Set Environment Variables:
   • Edit your shell profile file (e.g., ~/.bashrc) and add the following lines:

     export JAVA_HOME=/usr/lib/jvm/java-11-openjdk-amd64
     export PATH=$JAVA_HOME/bin:$PATH
     

   • Save the file and run source ~/.bashrc to apply the changes.

1. Download IntelliJ IDEA: Go to the IntelliJ IDEA download page and download the Community Edition (free) or Ultimate Edition (paid).
2. Install IntelliJ IDEA: Run the installer and follow the on-screen instructions.

1. Download Eclipse: Go to the Eclipse download page and download the installer.
2. Install Eclipse: Run the installer and follow the on-screen instructions.

1. Download Visual Studio Code: Go to the Visual Studio Code download page and download the installer.
2. Install Visual Studio Code: Run the installer and follow the on-screen instructions.
3. Install Extensions: Open Visual Studio Code and install the following extensions:
   • Java Extension Pack
   • Spring Boot Extension Pack

1. Download Maven: Go to the Maven download page and download the binary zip archive.
2. Install Maven:
   • Extract the downloaded archive to a directory (e.g., C:\Program Files\Apache\maven).
   • Set the M2_HOME environment variable to the Maven directory.
   • Add %M2_HOME%\bin to the Path environment variable.

1. Download Gradle: Go to the Gradle download page and download the binary zip archive.
2. Install Gradle:
   • Extract the downloaded archive to a directory (e.g., C:\Program Files\Gradle).
   • Set the GRADLE_HOME environment variable to the Gradle directory.
   • Add %GRADLE_HOME%\bin to the Path environment variable.

Open a terminal or command prompt and run:

You should see the installed Java version.

Open a terminal or command prompt and run:

You should see the installed Maven version.

Open a terminal or command prompt and run:

You should see the installed Gradle version.

By following these steps, you have successfully set up your development environment for Spring Boot. You have installed the necessary tools, configured environment variables, and verified the installations. In the next module, you will create your first Spring Boot application.