I want to check what version of Java is installed on my PC before installing the latest Java update. How can I do this?
5 Answers
You can check your version of Java with any of the following methods.
Java Control Panel (Windows)
- Open the Start Menu and select Control Panel.
- From the Control Panel, select Programs -> Java to open the Java Control Panel.
- Select About to view your current version of Java.
Command Line (Windows)
- Press ⊞ Win+R and type cmd to open the Command Prompt.
- Type
java -version
and press Enter
Control Panel (Windows)
Note: This method may give inaccurate results if Java's PATH has not been updated.
- Open the Start Menu and select Control Panel.
- From the Control Panel, select Programs -> Programs and Features.
- Scroll down the list of programs until you find the most recently installed version of Java
Terminal (MacOS)
- In the Finder, search for Terminal and launch Terminal.app
- Type
java -version
and press Enter
Sources
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These methods show different versions even on the same machine. Some say v7.0, some say v1.7...– Mike BFeb 19, 2020 at 2:26
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1@mblakesley: that's not a difference; see stackoverflow.com/questions/2411288/… especially the second-high-voted answer stackoverflow.com/a/2411663/2868801 . For the 'modular' versions j9 up, starting in 2017, they finally dropped the '1.' prefix. Aug 27, 2021 at 2:23
- Open CMD (In Windows click Start then type cmd, Command Prompt or PowerShell) and execute the following commands.
- For multiple java installations:
wmic product where "name like 'Java%'" get name, version
- For default java installation:
java -version
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
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You're correct. However, this answer has been posted already by another user. Nov 3, 2020 at 15:30
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.