ubuntu on the part of the kit like java or flash installation，Often encounter some problems，In particular the use of 64-bit systems environment，The situation more。
JAVA 裝 safety requirements when Tsuyoshi Tsuyoshi，Open JDK is only found in the repository，Previous experience installing this package will be a little problem，Internet search install Oracle JAVA，Another unexpected now organized (webupd8team) repository sources，只要透過webupd8team去下載安裝JAVA，Told to install other applications as simple as，Special statement webupd8team，In fact their PPA does not there is any JAVA file，They just do guide action，The actual download is downloaded from the Oracle，So users do not have to worry about the source of the problem file。
Before installation，To join the software source，Then can be installed through the apt-get：
sudo add-apt-repository ppa:webupd8team/java sudo apt-get update sudo apt-get install oracle-java7-installer
[Links]
- Howto : Install Oracle Java 7 (JDK & JRE) in Ubuntu 12.10 Quantal Quetzal | PPA | Unixmen
- Install Oracle Java 7 in Ubuntu via PPA Repository ~ Web Upd8: Ubuntu / Linux blog
