Install JDK on Ubuntu

1. Install OpenJdk $ sudo apt-get install openjdk-7-jdk 2.

Install Oracle java7 jdk $ sudo add-apt-repository ppa:webupd8team/java $ sudo apt-get update $ sudo apt-get install oracle-jdk7-installer 2-1. Install Oracle java7 jdk Manually $ cd ~ $ cd 다운로드/ $ Unzip Download JDK File $ tar zxvf jdk-7u7-linux-i586.tar.gz Normally locate java PATH is /use/lib $ sudo mkdir -p /usr/lib/jvm/jdk1.7.0 move.....