Friday, May 27, 2016

How to Install Java JDK in Kali Linux



1. Download the latest Java SE SDK version.

Download Java SDK

At the time of writing the filename and version was jdk-7u45-linux-x64.tar.gz

2. Untar the Archive
jdk-7u45-linux-x64.tar.gz
mv jdk1.7.0_45 /opt
/opt/jdk1.7.0_45

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

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

4. TestTo check the version of Java you are now running

java -version

To check the browser plugin browse to site and click “Do I have Java?”

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