1. Open up the Terminal (Alt + F2 > Terminal).
2. Remove OpenJDK installation.
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sudo apt-get update && apt-get remove openjdk* |
3. Download Oracle JDK from here. You are looking for a linux version with tar.gz extension. Also choose the right version from 32-bit (x86) and 64bit (x64) one.
4. Change directory into one with downloaded tarball. In my case $HOME/Downloads.
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cd ~/Downloads |
5. Extract tarball. Replace with a name of dowloaded file. (just press Tab and it will be autocompleted.)
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tar -zxvf jdk- |
6. As a root create a folder in /opt where jdk will be stored.
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sudo mkdir -p /opt/java |
7. Move extracted folder to /opt/java. In my case, version number was 1.7.0_25.
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sudo mv jdk1.7.0_25 /opt/java |
8. Make JDK system default.
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sudo update-alternatives --install "/usr/bin/java" "java" "/opt/java/jdk1.7.0_25/bin/java" 1 sudo update-alternatives --set java /opt/java/jdk1.7.0_25/bin/java |
9. Test installed java version.
java version “1.7.0_25” Java(TM) SE Runtime Environment (build 1.7.0_25-b15) Java HotSpot(TM) 64-Bit Server VM (build 23.25-b01, mixed mode)
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$ java -version |
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