Does Clojure run on JVM?

Does Clojure run on JVM?

Clojure is the result of all this. It’s a LISP functional programming language running on the JVM designed for concurrent programs.

Does Clojure run on Java?

Clojure requires Java. Clojure officially supports Java LTS releases (currently Java 8 and Java 11), but also tries to ensure interim versions work as well. You can use any Java installation, whether it’s a commercial release from Oracle or an open source version based on OpenJDK (like adoptopenjdk).

Is Clojure as fast as Java?

This is done by first comparing the steady-state runtime of Clojure with that of Java in several small example programs, and then com- paring the startup time of Clojure with that of Java using the same example programs. It was found that Clojure ran several times slower than Java in all conducted experiments.

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Is Clojure interpreted or compiled?

Clojure is a compiled language, so one might wonder when you have to run the compiler. Anything you enter into the REPL or load using load-file is automatically compiled to JVM bytecode on the fly.

Is Clojure compiled or interpreted?

How do I run a Clojure program?

Create a new Clojure project with Leiningen. Build the project to create an executable JAR file. Execute the JAR file. Execute code in a Clojure REPL.

How is Clojure compiled?

Clojure is always compiled. The Clojure compiler produces Java byte code, which is typically then JIT-compiled to native code by the JVM. The thing that can be confusing is the dynamic and interactive nature of Clojure that means you can invoke the compiler at run-time if you want to.

What do we need to understand to get the most from Clojure?

All of that boils down to us needing to understand the Java ecosystem in order to get the most out of Clojure. The Java ecosystem is big and it can be daunting.

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How does the JVM search for classes?

There are two parts to the JVM, which correspond to two main functions. The classloader is what searches for class files. There is no actual spec for how those class files will be searched for, but each JVM is allowed to do it however it feels like it.

What is the JVM bytecode?

The JVM bytecode is a standard that works across many different CPU architectures. This is how the JVM achieves the write-once-run-anywhere feature. The bytecode abstracts away differences in platform, and the bytecode interpreter is what makes it run on your platform.