How do I check what version of Java I have installed?

I want to check what version of Java is installed on my PC before installing the latest Java update. How can I do this?

4 Answers

You can check your version of Java with any of the following methods.

Java Control Panel (Windows)

1. Open the Start Menu and select Control Panel.
2. From the Control Panel, select Programs -> Java to open the Java Control Panel.

3. Select About to view your current version of Java.

Command Line (Windows)

1. Press ⊞ Win+R and type cmd to open the Command Prompt.

2. Type java -version and press Enter

Control Panel (Windows)

Note: This method may give inaccurate results if Java's PATH has not been updated.

1. Open the Start Menu and select Control Panel.
2. From the Control Panel, select Programs -> Programs and Features.
3. Scroll down the list of programs until you find the most recently installed version of Java

Terminal (MacOS)

1. In the Finder, search for Terminal and launch Terminal.app

2. Type java -version and press Enter

Sources

• Tech FAQ - How to Check the Java Version
• Columbia - How to check what Java version you have

The methods below will help you to check the Java version in Linux:

• ps -ef|grep -i JAVA
• java -version
• which java

In windows open command prompt using cmd

Then, type the command java -version

Then, click enter. You will see your java version

Checking Java version on Windows PowerShell, simply use the command:

java -version

Be careful there is only one dash in the command to be run.