Below steps will show you how to install Oracle java jdk 7 in ubuntu 12.04( precise),and here we install oracle JDK 7u4 as an example
1.Download the latest 32bit or 64bit Oracle JDK .tar.gz file from Oracle JDK Download (*i586.tar.gz and *x64.tar.gz for 32bit and 64bit ubuntuaccordingly )
2.Extract the .tar.gz file to your /usr/lib/jvm directory
sudo mkdir -p /usr/lib/jvm
For 32bit:
sudo tar -xf jdk-7u4-linux-i586.tar.gz -C /usr/lib/jvm
For 64bit:
sudo tar -xf jdk-7u4-linux-x64.tar.gz -C /usr/lib/jvm
3.Use below commands to install oracle JDK 7 to your system
sudo update-alternatives --install "/usr/bin/java" "java" "/usr/lib/jvm/jdk1.7.04/bin/java" 1 sudo update-alternatives --install "/usr/bin/javac" "javac" "/usr/lib/jvm/jdk1.7.04/bin/javac" 1 sudo update-alternatives --install "/usr/bin/javaws" "javaws" "/usr/lib/jvm/jdk1.7.04/bin/javaws" 1
4.Use below command to check if you have other old java version installed
java -version- If it shows you the correct version which you just downloaded and installed,just go to step 6 to enable firefox plugin.
- If it shows you an old or another version of java which is not what you want ,go to step 5
5.Run below commands to active the JDK we just installed.
sudo update-alternatives --config java sudo update-alternatives --config javac sudo update-alternatives --config javaws
each of the above 3 commands will show you a list of all java versions been installed on your ubuntu system,please select the number which contains the path you just created in step 2
6.Enable firefox plugin
mkdir ~/.mozilla/plugins
For 32 Bit:
ln -sf /usr/lib/jvm/jdk1.7.04/jre/lib/i386/libnpjp2.so ~/.mozilla/plugins/For 64 Bit:
ln -sf /usr/lib/jvm/jdk1.7.04/jre/lib/amd64/libnpjp2.so ~/.mozilla/plugins/7.(Optional)You can verify you have installed oracle Java JDK 7 correctly on This Oracle Page
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mkdir ~/.mozzila/plugins
should be
mkdir ~/.mozilla/plugins
Robert,
Thanks for your reminder,updated.
thanx a lot
now if i run the “java -version” command it show the correct version of jdk
but the link you mentioned to check jdk from oracle site doesn’t work.
The browser(both mozilla and chromium) ask me to install some “open java plugins”
what should i do?
or i can simply use jdk 7 for eclipse or netbeans
sorry for my poor english
Hi,
Please make sure you ran step 6 correctly.
yes,problem was in step 6
i forgot to jdk1.7.04–>jdk1.7.0_05 (in my case)
ln -sf /usr/lib/jvm/jdk1.7.0_05/jre/lib/amd64/libnpjp2.so ~/.mozilla/plugins/
everywhere else i had changed the jdk version
Hi, i’m new in linux. where do i jave to create this directory mkdir ~/.mozilla/plugins ?
Charly,
Open a terminal by pressing Ctl+Alt+t ,then run command
mkdir ~/.mozilla/plugins
when carrying out the command
sudo update-alternatives –install “/usr/bin/java” “hava” “/usr/lib/jvm/jdk1.7.0_05/bin/java” 1
I mistyped the j and typed h instead making it “hava” as above. Any remedy? or should I (can I) just live with it. Went to the Oracle page and tested my installation. It came back with a congratulatory message saying JDK7 was properly installed.
Kevin,
It’s not a critical type error,you can just live with it.
also you can correct it use below commands:
sudo update-alternatives –remove hava “/usr/lib/jvm/jdk1.7.0_05/bin/java”
sudo update-alternatives –install “/usr/bin/java” “java” “/usr/lib/jvm/jdk1.7.0_05/bin/java” 1
Hey Admin thanks a lot for your help.
Well let me know is there any path setting in linux for java as we do in windows. i had installed java 5,6 & 7 together in windows, i do change their concerned path when i need.
Do you know is there any such stuff here in linux?
hello I have a problem with the command line: ln-sf / usr/lib/jvm/jdk1.7.04/jre/lib/amd64/libnpjp2.so ~ /. mozilla / plugins /
when I go into the terminal it gives me: command not found
The tutorial’s just flawless and awesome.
Thank you.
Can you help me getting it configured for chromium browser as you did for firefox.
Tanks a lot!!!