Instalar java no ubuntu

  1. Download Java SE 7 JDK for Linux x86 archive. At the time of writing, the file I’m using is jdk-7u21-linux-i586.tar.gz, but the filename will change as updates are released.
  2. Apparently there is no longer a jvm folder, so create one.
    sudo mkdir /usr/lib/jvm
  3. Move the archive to the jvm folder
    sudo mv jdk-7u21-linux-i586.tar.gz /usr/lib/jvm/
  4. Change to the jvm folder and extract the JDK from the archive
    cd /usr/lib/jvm
    sudo tar zxvf jdk-7u21-linux-i586.tar.gz
    Everything will be extracted to a new jdk1.7.0_21 folder and you can delete the archive file now.
  5. Make symbolic links to the new java binary.
    sudo ln -s -b /usr/lib/jvm/jdk1.7.0_21/jre/bin/java /etc/alternatives/java
    sudo ln -s -b /usr/lib/jvm/jdk1.7.0_21/jre/bin/java /usr/bin/java
  6. Double-check the version
    java -version

 

 

Para rodar jnlp

sudo apt-get install icedtea-netx

Depois recriar os links

Make symbolic links to the new java binary.
sudo ln -s -b /usr/lib/jvm/jdk1.7.0_21/jre/bin/java /etc/alternatives/java
sudo ln -s -b /usr/lib/jvm/jdk1.7.0_21/jre/bin/java /usr/bin/java

 

Referência:

http://www.printandweb.ca/2013/04/manually-install-oracle-jdk-7-for.html

http://www.upubuntu.com/2012/12/how-to-run-jnlp-files-under-ubuntulinux.html