This will ensure either Java Runtime Environment is already installed on your system or not.

The next thing is to run the following command: $ java -version Since we will be installing Java through the apt utility, first let us update our apt repositories through the following command: $ sudo apt update

You can open the Terminal either through the system Dash or the Ctrl+alt+T shortcut. Let us first open the Ubuntu command line, the Terminal, in order to install these two. In order to compile and run a basic Java program, you need to have the following two software installed on your Ubuntu system: We have run the commands and procedures mentioned in this article on an Ubuntu 18.04 LTS system. You will then compile your program in order to create a class that you can then execute in order to run your Java program. You can then write your first program in a text editor such as gedit, nano or even some graphical text writing tool. This article covers the installation of these two through the Ubuntu command line. The applications that you need for this purpose include the Java Runtime Environment and the Java Development Kit. If you are new to Java Programming in the Ubuntu operating system, this simple tutorial will guide you along in writing and compiling your first Java Hello World program.

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