HomeTechnologyLinux

How to Install Oracle Java on Ubuntu Linux

Optional: How to Enable Oracle Java on Web Browser

How to Install Oracle Java on Ubuntu Linux Picture 1

To enable the Java plug-in on a web browser, you must create a symbolic link from the browser's plug-in directory to the location of the Java plug-in in the Oracle Java partition.

Important Note: You should be careful when activating Oracle Java 7 in your web browser because of the fact that Java has a multitude of security holes and exploits. More importantly, when activating Oracle Java 7 on a web browser, if there is a security hole or exploit, this is a weak point for bad guys to infiltrate and harm your system. For more information about Java vulnerabilities and exploits, visit the website: Java Tester

Google Chrome

Oracle Java 32-bit Tutorial:

How to Install Oracle Java on Ubuntu Linux Picture 2

Execute the following command.

Type/Copy/Paste: sudo mkdir -p /opt/google/chrome/plugins

Here is the command to create the directory /opt/google/chrome/plugins

Type/Copy/Paste: cd /opt/google/chrome/plugins

This is the command that takes you to the google chrome plugin folder, remember to go to this folder before creating the icon link

Type/Copy/Paste: sudo ln -s /usr/local/java/jre1.7.0_45/lib/i386/libnpjp2.so

This is the command to create a symbolic link from the Java JRE( Java Runtime Environment ) plugin libnpjp2.so to the Google Chrome browser.

Oracle Java 64-bit Tutorial:

How to Install Oracle Java on Ubuntu Linux Picture 3

Execute the following command.

Type/Copy/Paste: sudo mkdir -p /opt/google/chrome/plugins

Here is the command to create the directory /opt/google/chrome/plugins

Type/Copy/Paste: cd /opt/google/chrome/plugins

This is the command that takes you into the google chrome plugin directory, make sure you go into the directory before creating the icon link.

Type/Copy/Paste: sudo ln -s /usr/local/java/jre1.7.0_45/lib/amd64/libnpjp2.so

This is the command to create a symbolic link from the Java JRE (Java Runtime Environment) plugin libnpjp2.so to the Google Chrome browser.

Remind:

How to Install Oracle Java on Ubuntu Linux Picture 4

Note: When executing the above commands, sometimes you get the following message:

ln: creating symbolic link `./libnpjp2.so': File exists

To fix this problem, simply remove the previous link with the following command:

Type/Copy/Paste:cd /opt/google/chrome/plugins

Type/Copy/Paste:sudo rm -rf libnpjp2.so

Make sure you are in the /opt/google/chrome/plugins directory before executing the command.

How to Install Oracle Java on Ubuntu Linux Picture 5

Restart the web browser and go to Java Tester to check if Java is working or not.

Mozilla Firefox

Oracle Java 32-bit Tutorial:

How to Install Oracle Java on Ubuntu Linux Picture 6

Execute the following command.

Type/Copy/Paste: cd /usr/lib/mozilla/plugins

This is the command that takes you to the plugin directory /usr/lib/mozilla/plugins, create this directory if not already there.

Type/Copy/Paste: sudo mkdir -p /usr/lib/mozilla/plugins

Here is the command to create the /usr/lib/mozilla/plugins directory, make sure you are in the directory before creating the symbolic link.

Type/Copy/Paste: sudo ln -s /usr/local/java/jre1.7.0_45/lib/i386/libnpjp2.so

This is the command to create a symbolic link from the Java JRE(Java Runtime Environment) plugin libnpjp2.so to the Mozilla Firefox web browser.

Oracle Java 64-bit Tutorial:

How to Install Oracle Java on Ubuntu Linux Picture 7

Execute the following command:

Type/Copy/Paste: cd /usr/lib/mozilla/plugins

This is the command that takes you to the /usr/lib/mozilla/plugins directory, create this directory if not already there.

Type/Copy/Paste: sudo mkdir -p /usr/lib/mozilla/plugins

Here is the command to create the /usr/lib/mozilla/plugins directory, make sure you are in the directory before creating the symbolic link.

Type/Copy/Paste: sudo ln -s /usr/local/java/jre1.7.0_45/lib/amd64/libnpjp2.so

This is the command to create a symbolic link from the Java JRE(Java Runtime Environment) plugin libnpjp2.so to the Mozilla Firefox web browser.

Remind:

How to Install Oracle Java on Ubuntu Linux Picture 8

Note: Sometimes you execute the above commands and get the message:

ln: creating symbolic link `./libnpjp2.so': File exists

To fix this problem, simply remove the previous link with the following command:

Type/Copy/Paste: cd /usr/lib/mozilla/plugins

Type/Copy/Paste: sudo rm -rf libnpjp2.so

Make sure you are in the /usr/lib/mozilla/plugins directory before executing the command.

Restart the web browser and visit the Java Tester page to check if Java is already working in the browser.

4.5 ★ | 2 Vote
Ubuntu Linux

You should read it

May be interested

  • Install and use 7 ZIP on Ubuntu LinuxInstall and use 7 ZIP on Ubuntu Linux
    if you are a windows user and you have ever sent/received large files online, you probably have not heard of the 7 zip file compression tool. installing 7 zip on windows is quite simple, so what about on ubuntu linux. the article below tipsmake will guide you how to install and use 7 zip on ubuntu linux.
  • How to Use R Language to Connect with an ORACLE DatabaseHow to Use R Language to Connect with an ORACLE Database
    the language r can be used to connect with an oracle database and perform several actions. for use on linux ubuntu and oracle xe, learning to connect in this way makes the task much more manageable. choose your os (linux 32) here:...
  • How to install Steam in UbuntuHow to install Steam in Ubuntu
    steam is the most popular online gaming platform for pc and linux. there are over 2000 steam games available for linux. although steam is available through the official ubuntu repositories, many new linux users still have trouble installing.
  • How to Install Ubuntu LinuxHow to Install Ubuntu Linux
    this is an article showing how to install ubuntu linux on a windows or mac computer without removing the current operating system.
  • 5 things to do when installing Ubuntu on PC5 things to do when installing Ubuntu on PC
    ubuntu is a powerful linux distribution suitable for a wide variety of use cases, ideal for both beginners and seasoned linux users.
  • Instructions to install Ubuntu directly from the hard driveInstructions to install Ubuntu directly from the hard drive
    ubuntu is one of the most popular linux distributions. if you want to install ubuntu, the simplest way is to use the hard drive. follow the article below to see how to do it.
  • How to Install the Java Software Development KitHow to Install the Java Software Development Kit
    before you can create and modify java programs, you'll need the java software development kit. you can download the kit (also known as java sdk or jdk) for free from oracle as a single installer file, which makes installation quick and...
  • How to install Pip in UbuntuHow to install Pip in Ubuntu
    linux has a lot of package managers. ubuntu not only has apt but also many programming languages ​​that come with its own package manager. pip stands for python packages packages and allows you to easily install packages from python package index (pypi).
  • Download and install Java on the computerDownload and install Java on the computer
    to program java on your computer, you need to install the java environment, this tutorial will show you how to download and install java on your computer.
  • How to fix the error does not install JavaHow to fix the error does not install Java
    more and more applications and websites require java installation before use. unfortunately, sometimes you can't install java or install it, but it doesn't work. the article will provide ways to fix errors that do not install java on your computer.

Linux