How to install the JDK on Ubuntu Linux

To install the JDK (Java Development Kit) on Ubuntu Linux, follow these steps:

1. First, update the package index:

sudo apt-get update

2. Next, install the default JDK:

sudo apt-get install default-jdk

3. Alternatively, you can install a specific version of the JDK by using the following command, replacing <version> with the desired version:

sudo apt-get install openjdk-<version>-jdk

Once the installation is complete, you can check that the JDK was properly installed by running the following command:

java -version

This will print the version of the JDK that is currently installed on your system.