How to Install JDK 8 on Ubuntu

Installing JDK (Java Development Kit) 8 on Ubuntu can be a bit tricky, but don't worry, we've got you covered. In this article, we'll show you two methods to install JDK 8 on Ubuntu.

The first method involves using the official PPA repository provided by the webupd8team. To do this, open a terminal and execute the following command:

`sudo add-apt-repository ppa:webupd8team/java`

Once the repository is added, you can proceed with installing Open JDK 8. Run the following command to install it:

`sudo apt install openjdk-8-jdk`

Alternatively, if you want to install a newer version of Java, such as Open JDK 9 or 11, you can use the following commands:

* For Open JDK 9: `sudo apt install openjdk-9-jdk`

* For Open JDK 11: `sudo apt install openjdk-11-jdk`

It's worth noting that Ubuntu comes with an open-source version of Java binaries at runtime called Open JDK. If you're looking for a free alternative to Java, you can install it directly from the official Ubuntu repositories.

To check if you have Java installed on your system, simply run:

`java -version`

This will return a response with your installed Java version. To install the execution environment, execute:

`sudo apt-get install default-jre`

Finally, to install Java using this method, follow these steps:

1. Update your system with: `sudo apt-get update`

2. Install Open JDK 8: `sudo apt install openjdk-8-jdk`

With these simple steps, you should be able to install JDK 8 on Ubuntu. Happy coding!

Ubuntu install jdk 8