CODEWITHSUNDEEP
javacmdjava-8
wattbatt
wattbatt

Reputation: 477

Is java -version telling me about the JRE or the JDK?

I had only a JRE and now I also downloaded a JDK; they are listed in control panel as:

Java 8 update 121, Java SE Development Kit 8 Update 121 so I guess the JRE inside my JDK and the other JRE are the same version;

When I write in cmd java -version; is it the original jre or the jre inside the jdk's folder?

Also i was thinking, considering i have 2 identical JRE, can i delete the old one or is it bad practice?

Upvotes: 2

Views: 131

Answers (2)

Michael
Michael

Reputation: 44250

It relates to whatever's first on your path, simple as that. Every executable follows the same resolution rules.

On unix, you can use this to see where it's coming from

which java

On Windows it's

where java

Upvotes: 1

jsgrewal12
jsgrewal12

Reputation: 318

java -version tells the JDK version and yes, you should only keep the latest production version of JRE and JDK in the system. No need for having multiple libraries as any application can have only one JRE associated with it.

Upvotes: 0

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