How to Determine the JDK Version Used by Eclipse

How can I find out which version of the JDK Eclipse is utilizing?

// Open Eclipse and navigate to Help > About Eclipse IDE
// Click on "Installation Details"
// Go to the "Configuration" tab to find the JRE version.

Identifying the JDK version that your Eclipse IDE is using is crucial for ensuring compatibility with your Java projects. This process is straightforward and can be done directly from the Eclipse interface in a few simple steps.

// To programmatically check JDK version in Java
public class CheckJDKVersion {
    public static void main(String[] args) {
        System.out.println("Current JDK Version: " + System.getProperty("java.version"));
    }
}

Causes

• The JDK version impacts the features available in Eclipse.
• Java 8, 11, 17, and above have varying support levels in different Eclipse versions.

Solutions

• Open Eclipse IDE.
• Navigate to the top menu and click on 'Help'.
• Select 'About Eclipse IDE'.
• Click on 'Installation Details'.
• Switch to the 'Configuration' tab where you can see the JRE version in use.

Mistake: Not checking the 'Configuration' tab in Installation Details.

Solution: Ensure to navigate to 'Installation Details' and then to 'Configuration' for accurate JDK version.

Mistake: Using a different version of Java for running Eclipse.

Solution: Make sure the Eclipse IDE is pointed to the correct JDK in the Eclipse settings.