How to install Java 7 on Debian

Here is a tutorial on how to install the latest Java 7 JDK and JRE on a Debian Linux system:

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apt-get update && apt-get upgrade -y
sudo apt-get install sun-java6-jdk -y
mkdir /tmp/downloads && cd /tmp/downloads 
wget http://download.oracle.com/otn-pub/java/jdk/7u2-b13/jdk-7u2-linux-i586.tar.gz
tar -xvf jdk-7u2-linux-i586.tar.gz
mv /tmp/downloads/jdk1.7.0_02 /usr/lib/jvm
mv /usr/lib/jvm/jdk1.7.0_02 /usr/lib/jvm/java-7-oracle
sudo update-alternatives --install "/usr/bin/java" "java" "/usr/lib/jvm/java-7-oracle/bin/java" 1
sudo update-alternatives --install "/usr/bin/javac" "javac" "/usr/lib/jvm/java-7-oracle/bin/javac" 1
sudo update-alternatives --install "/usr/bin/javaws" "javaws" "/usr/lib/jvm/java-7-oracle/bin/javaws" 1
sudo update-alternatives --config java
java -version
rm -r /tmp/downloads