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I am trying out kali Linux on my raspberry pi for the first time, and I am trying to install java, as I use it a lot on my pi. I didn’t want to give this up because of my new os. However, when I try to install java using “apt-get install oracle-java7-jdk”, I get the error:

Package openjdk-7-jdk is not available but is referred to by another package.This may mean that the package is missing, has been obsoleted, or is only available from another source E: Unable to locate package openjdk-7-jdk

I can’t find a solution anywhere, so help would be appreciated.

  • 2
    Have you Googled "install java on kali Linux"? I did and it gave some helpful looking results. I haven't tried any, but you should before you ask here, and tell us how they fail if they don't work. – Mark Smith Apr 13 at 8:23
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First point is Kali Linux comes preloaded with all languages like C, C++, and Java.

To check, try the following command in terminal:

java -version

If it shows the Java information then Java is already installed on your system. If it is not, then simply use this command:

sudo apt-get install openjdk-8-jdk

It will install Java on your system.

  • The OP wants to use something that needs oracle-java7-jdk. – RalfFriedl Jun 28 at 5:20
  • Judging from the title, I think more likely the OP just didn't realize he could install Java 8+ instead. – jdonald Jul 29 at 0:11

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