2. extract it and move " /usr/lib/jvm"
3. then do
sudo update-alternatives --config java
if they is one alternative , do this :
sudo update-alternatives --install "/usr/bin/java" "java" "/usr/lib/jvm/java-5-oracle/bin/java" 2
sudo update-alternatives --install "/usr/bin/javac" "javac" "/usr/lib/jvm/java-5-oracle/bin/javac" 2
sudo update-alternatives --install "/usr/bin/javaws" "javaws" "/usr/lib/jvm/ava-5-oracle/bin/javaws" 2
