J'ai installé java
[email protected]:~$ whereis java
java: /usr/bin/java /usr/bin/X11/java /usr/local/java /usr/share/java
[email protected]:~$ whereis javac
javac: /usr/bin/javac /usr/bin/X11/javac
et etc / profile
JAVA_HOME=/usr/local/java/jdk1.7.0...