copy jre-6u45-linux-x64.bin
chmod +x jre-6u45-linux-x64.bin
./jre-6u45-linux-x64.bin
mv jre1.6.0_45/ java-6-oracle/
mv java-6-oracle/ /usr/lib/jvm/
cd /usr/lib/jvm/
sudo update-alternatives --install "/usr/bin/java" "java" "/usr/lib/jvm/java-6-oracle/bin/java" 1
sudo update-alternatives --install "/usr/bin/javac" "javac" "/usr/lib/jvm/java-6-oracle/bin/javac" 1
sudo update-alternatives --install "/usr/bin/javaws" "javaws" "/usr/lib/jvm/java-6-oracle/bin/javaws" 1
sudo update-alternatives --config java
java -version