default-jdk software package provides Standard Java or Java compatible Development Kit, you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install default-jdk
default-jdk is installed in your system.
Make ensure the default-jdk package were installed using the commands given below,
$ sudo dpkg-query -l | grep default-jdk *
You will get with default-jdk package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Development |
| Package | default-jdk |
| Version | 2:1.8-56ubuntu2 |
| Description | Standard Java or Java compatible Development Kit |
| Sub Section | Devel |