Introduction

Clojure runs on the Java Virtual Machine (JVM), and the Clojure language provides full access to Java. Java has huge assets and we can use all of them from Clojure. This is one of the great advantages of Clojure, which is also callable from Java.

In this chapter, you will see how to instantiate objects from classes and how to access Java objects, including methods and fields, and also learn ways to inherit superclasses and ways to implement interfaces.

You will also learn how to use Clojure on Microsoft's .Net and JavaScript, using ClojureCLR and ClojureScript. This chapter will introduce to you how to set up ClojureCLR and ClojureScript environments and how to smoothly write code on them.