How to Install Java JDK in Linux

This is a small guide with instructions that users can copy paste and make Java work in their Kali Linux. Thanks topurehate for providing original instructions. I’ve modified his instruction to suit my needs and I hope this will benefit users as well.

So lets get on with this guide…

Contents [hide]

How to Install Java JDK in Kali LinuxInstructions on How to Install Java JDK in Kali Linux:Download the latest Java SE SDK versionUnTar the Archive and move to /optInstall and register binariesTestGoogle+Related

Instructions on How to Install Java JDK in Kali Linux:

Download the latest Java SE SDK version

Go to the following link and download jdk7. At the time of writing this guide the jdk version wasjdk-7u45-linux-x64. Note that I’m using x64 which is 64-bit. 32-bit users should choose their versions accordingly. Not that tough really!

Following is what I’ve used.

JDK-7u45-Linux-x64

Again, at the time of writing this guide the available version was jdk-7u45-linux-x64.tar.gz

Download and save the file in /root directory.

UnTar the Archive and move to /opt

tar -xzvf /root/jdk-7u45-linux-x64.tar.gzmv jdk1.7.0_45 /optcd /opt/jdk1.7.0_45

Install and register binaries

This step registers the downloaded version of Java as an alternative, and switches it to be used as the default:

update-alternatives --install /usr/bin/java java /opt/jdk1.7.0_45/bin/java 1update-alternatives --install /usr/bin/javac javac /opt/jdk1.7.0_45/bin/javac 1update-alternatives --install /usr/lib/mozilla/plugins/libjavaplugin.so mozilla-javaplugin.so /opt/jdk1.7.0_45/jre/lib/amd64/libnpjp2.so 1update-alternatives --set java /opt/jdk1.7.0_45/bin/javaupdate-alternatives --set javac /opt/jdk1.7.0_45/bin/javacupdate-alternatives --set mozilla-javaplugin.so /opt/jdk1.7.0_45/jre/lib/amd64/libnpjp2.so

Test

First of all, close your browser and re-open. You won’t believe how many users actually forgets to do this step and later complains Java ain’t working. I’d advise to bookmark this site to be able to reopen these instructions quickly, or simply copy these into a leafpad/vi/text file.

To check the version of Java you are now running

java -version

To check the browser plugin just click Do I have Java?

This should take you to Oracles Java website and you will see a confirmation message.

After Java the next step is obviously installing Flash. No one want’s to miss Youtube cat videos! Well, maybe not everyone. Here’s the guide to enable Flash in Kali LinuxHow to Install Flash in Kali Linux.

Come from : http://www.blackmoreops.com/2013/10/26/how-to-install-java-jdk-in-kali-linux/

可你仍然感谢天地和人世所带来的这些变化和发生。

How to Install Java JDK in  Linux

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