Getting started with Kotlin

Before installing Kotlin, we need to have JDK installed, as Kotlin relies on JDK.

In this course, we will be using OpenJDK. OpenJDK can be downloaded from http://jdk.java.net/. Alternatively, we can use Oracle JDK, which can be downloaded from http://www.oracle.com/technetwork/java/javase/downloads/index.html.

After installing the JDK, set the PATH variable to include the JDK installed and we can check its version using the java --version command.

Once we have JDK installed, we need to set up Kotlin. We will look at how to install it in the following section.