install JDK on Debian/Ubuntu

install JDK on Debian/Ubuntu

Step 1: Download http://www.oracle.com/technetwork/java/javase/downloads/index.html

Step 2: Unzip and install,Type commandline as below
tar zxvf jdk-7u67-linux-i586.gz -C /usr/lib/jvm

cd /usr/lib/jvm

mv jdk1.7.0_06/ jdk7

Step 3:Configure the environment variables
vim ~/.bashrc

add
export JAVA_HOME=/usr/lib/jvm/jdk7

export JRE_HOME=$JAVA_HOME/jre

export CLASSPATH=.:$JAVA_HOME/lib:$JRE_HOME/lib

export PATH=$JAVA_HOME/bin:$PATH

Step 4:Save
source ~/.bashrc

Step 5:Test
java -version

install JDK on Debian/Ubuntu