Gentoo provides numerous Java Runtime Environments (JREs) and Java Development Kits (JDKs). Examples of such include: Clojure, Apache Groovy, Kotlin or Scala. Multiple programming languages use the Java platform and run on the JVM. The Java virtual machine is not used exclusively by Java programming language. A JDK (Java Development Kit) adds programming tools, such as a bytecode compiler and a debugger. A JRE provides core libraries, a platform dependent JVM, plugins for browsers, among other things. ![]() In order to run Java bytecode, one needs to have a JRE (Java Runtime Environment) installed. To make platform independence possible the Java compiler compiles the Java code to an intermediate representation called Java bytecode that runs on a JVM ( Java Virtual Machine) and not directly on the operating system. Although Java can be compiled as a native program, much of Java's popularity can be attributed to its portability, along with other features such as automatic memory management. ![]() The language is object-oriented and designed to run on multiple platforms without the need of recompiling code for each platform. Java is a programming language developed by Sun Microsystems.
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