How to install Oracle Java (JRE and JDK) On Ubuntu Linux

Its very easy just follow the steps: 1::Download the Oracle Java JDK for Linux. Make sure you select the correct compressed binaries for your system architecture 32-bit or 64-bit (which end in tar.gz). For example, if you are on Ubuntu Linux 32-bit operating system download 32-bit Oracle Java binaries. For example, if you are on Ubuntu Linux 64-bit operating system download 64-bit Oracle Java binaries. Optional, Download the Oracle Java JDK Documentation Select jdk-8u20-apidocs.zip Important Information: 64-bit Oracle Java binaries do not work on 32-bit Ubuntu Linux operating systems, you will receive multiple system error messages, if you attempt to install 64-bit Oracle Java on 32-bit Ubuntu Linux. 2::Copy the Oracle Java binaries into the /usr/local/java directory. In most cases, the Oracle Java binaries are downloaded to: /home/"your_user_name"/Downloads. 32-bit Oracle Java on 32-bit Ubuntu Linux installation instructions: Type/Copy/Paste: cd /home/"your_user_name"/Downloads Type/Copy/Paste: sudo cp -r jdk-8u20-linux-i586.tar.gz /usr/local/java/ Type/Copy/Paste: cd /usr/local/java 64-bit Oracle Java on 64-bit Ubuntu Linux installation instructions: Type/Copy/Paste: cd /home/"your_user_name"/Downloads Type/Copy/Paste: sudo cp -r jdk-8u20-linux-x64.tar.gz /usr/local/java/ Type/Copy/Paste: cd /usr/local/java 3::Unpack the compressed Java binaries, in the directory /usr/local/java 32-bit Oracle Java on 32-bit Ubuntu Linux installation instructions: Type/Copy/Paste: sudo tar xvzf jdk-8u20-linux-i586.tar.gz 64-bit Oracle Java on 64-bit Ubuntu Linux installation instructions: Type/Copy/Paste: sudo tar xvzf jdk-8u20-linux-x64.tar.gz 4::Double-check your directories. At this point, you should have two uncompressed binary directories in /usr/local/java for the Java JDK/JRE listed as: How do I install Java on Ubuntu? Still have a question? Ask your own! What is your question? Ad by DigitalOcean DigitalOcean® Linux hosting - free $100/60-day credit. Sign up now for $100 free credit. Deploy a Linux cloud server with 1vCPU, 1GB RAM and 25GB SSD. Learn More 9 ANSWERS  Gaurav Jadwani, engineering student,INDIA Answered Mar 1, 2016 Its very easy just follow the steps: 1::Download the Oracle Java JDK for Linux. Make sure you select the correct compressed binaries for your system architecture 32-bit or 64-bit (which end in tar.gz). For example, if you are on Ubuntu Linux 32-bit operating system download 32-bit Oracle Java binaries. For example, if you are on Ubuntu Linux 64-bit operating system download 64-bit Oracle Java binaries. Optional, Download the Oracle Java JDK Documentation Select jdk-8u20-apidocs.zip Important Information: 64-bit Oracle Java binaries do not work on 32-bit Ubuntu Linux operating systems, you will receive multiple system error messages, if you attempt to install 64-bit Oracle Java on 32-bit Ubuntu Linux. 2::Copy the Oracle Java binaries into the /usr/local/java directory. In most cases, the Oracle Java binaries are downloaded to: /home/"your_user_name"/Downloads. 32-bit Oracle Java on 32-bit Ubuntu Linux installation instructions: Type/Copy/Paste: cd /home/"your_user_name"/Downloads Type/Copy/Paste: sudo cp -r jdk-8u20-linux-i586.tar.gz /usr/local/java/ Type/Copy/Paste: cd /usr/local/java 64-bit Oracle Java on 64-bit Ubuntu Linux installation instructions: Type/Copy/Paste: cd /home/"your_user_name"/Downloads Type/Copy/Paste: sudo cp -r jdk-8u20-linux-x64.tar.gz /usr/local/java/ Type/Copy/Paste: cd /usr/local/java 3::Unpack the compressed Java binaries, in the directory /usr/local/java 32-bit Oracle Java on 32-bit Ubuntu Linux installation instructions: Type/Copy/Paste: sudo tar xvzf jdk-8u20-linux-i586.tar.gz 64-bit Oracle Java on 64-bit Ubuntu Linux installation instructions: Type/Copy/Paste: sudo tar xvzf jdk-8u20-linux-x64.tar.gz 4::Double-check your directories. At this point, you should have two uncompressed binary directories in /usr/local/java for the Java JDK/JRE listed as: Type/Copy/Paste: ls -a jdk1.8.0_20 jre1.8.0_20 5::Edit the system PATH file /etc/profile and add the following system variables to your system path. Use nano, gedit or any other text editor, as root, open up /etc/profile. Type/Copy/Paste: sudo gedit /etc/profile or Type/Copy/Paste: sudo nano /etc/profile 6::Scroll down to the end of the file using your arrow keys and add the following lines below to the end of your /etc/profile file: Type/Copy/Paste: JAVA_HOME=/usr/local/java/jdk1.8.0_20 PATH=$PATH:$HOME/bin:$JAVA_HOME/bin export JAVA_HOME export PATH 7::Save the /etc/profile file and exit. 8::Inform your Ubuntu Linux system where your Oracle Java JDK/JRE is located. This will tell the system that the new Oracle Java version is available for use. Type/Copy/Paste: sudo update-alternatives --install "/usr/bin/java" "java" "/usr/local/java/jdk1.8.0_20/bin/java" 1 this command notifies the system that Oracle Java JRE is available for use Type/Copy/Pa