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Thread: Detect if JDK is installed?

  1. #1
    Join Date
    Feb 2013
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    Default Detect if JDK is installed?

    Hi guys. So, I know that you can use System.getProperty for java.home, but there doesnt seem to be one of those for the JDK and I am currently working on a program that requires JDK. OR at least a part of it does... thats why I want to detect and dynamically change my program based on if JDK is installed or not. Can anyone tell me the best way to detect JDK? A quick google search doesnt really help tooo much.

  2. #2
    Administrator copeg's Avatar
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    Oct 2009
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    Default Re: Detect if JDK is installed?

    Assuming you wish the JDK to be on the PATH, use Runtime.exec to execute 'javac -version'. Get the returned value and check if it spits out the expected response (note, check the InputStream and ErrorStream)

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