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A computer science undergraduate at University of Colombo. Pavithra is a DZone MVB and is not an employee of DZone and has posted 16 posts at DZone. You can read more from them at their website. View Full User Profile

Installing Oracle Java 6 on Ubuntu

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If you have already installed Ubuntu 12.04 you probably have realized that Sun java(oracle java) does not come prepacked with Ubuntu like it used to be , instead OpenJDK comes with it. Here is how you can install Oracle java on Ubuntu 12.04 manually.
  1. Download jdk-6u32-linux-x64.bin from this link. If you have used 32-bit Ubuntu installation, download jdk-6u32-linux-x32.bin instead.
  2. To make the downloaded bin file executable use the following command
    1.     chmod +x jdk-6u32-linux-x64.bin  
  3. To extract the bin file use the following command
    1.     ./jdk-6u32-linux-x64.bin  
  4. Using the following command create a folder called "jvm" inside /usr/lib if it is not already existing
    1.     sudo mkdir /usr/lib/jvm  
  5. Move the extracted folder into the newly created jvm folder
    1.     sudo mv jdk1.6.0_32 /usr/lib/jvm/  
  6. To install the Java source use following commands
        sudo update-alternatives --install /usr/bin/javac javac /usr/lib/jvm/jdk1.6.0_32/bin/javac 1  
        sudo update-alternatives --install /usr/bin/java java /usr/lib/jvm/jdk1.6.0_32/bin/java 1  
        sudo update-alternatives --install /usr/bin/javaws javaws /usr/lib/jvm/jdk1.6.0_32/bin/javaws 1  
  7. To make this default java
        sudo update-alternatives --config javac  
        sudo update-alternatives --config java  
        sudo update-alternatives --config javaws  
  8. To make symlinks point to the new Java location use the following command
    1.     ls -la /etc/alternatives/java*  
  9. To verify Java has installed correctly use this command
    1. java -version  
Published at DZone with permission of Pavithra Gunasekara, author and DZone MVB. (source)

(Note: Opinions expressed in this article and its replies are the opinions of their respective authors and not those of DZone, Inc.)


Kris Hofmans replied on Tue, 2012/08/14 - 4:27am

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