"Java language" redirects here. For the natural language from the Indonesian island of Java, see Javanese language.
Not to be confused with JavaScript.
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Java
Java logo and wordmark.svg
Paradigm(s) multi-paradigm: object-oriented, structured, imperative, functional, generic, reflective, concurrent
Designed by James Gosling and
Sun Microsystems
Developer Oracle Corporation
Appeared in 1995[1]
Stable release Java Standard Edition 8 Update 25 (1.8.0_25) / October 14, 2014; 50 days ago
Typing discipline Static, strong, safe, nominative, manifest
Major implementations OpenJDK, GNU Compiler for Java(gcj), many others
Dialects Generic Java, Pizza
Influenced by Ada 83, C++, C#,[2] Eiffel,[3] Generic Java, Mesa,[4] Modula-3,[5] Oberon,[6] Objective-C,[7] UCSD Pascal,[8][9] Smalltalk
Influenced Ada 2005, BeanShell, C#, Clojure, D, ECMAScript, Groovy, J#, JavaScript, Kotlin, PHP, Python, Scala, Seed7, Vala
Implementation language C and C++
OS Cross-platform (multi-platform)
License GNU General Public License, Java Community Process
Filename extension(s) .java , .class, .jar
Website For Java Developers
Java Programming at Wikibooks
Java is a general-purpose computer programming language that is concurrent, class-based, object-oriented,[10] and specifically designed to have as few implementation dependencies as possible. It is intended to let application developers "write once, run anywhere" (WORA),[11] meaning that code that runs on one platform does not need to be recompiled to run on another.[12] Java applications are typically compiled to bytecode that can run on any Java virtual machine (JVM) regardless of computer architecture. Java is, as of 2014, one of the most popular programming languages in use, particularly for client-server web applications, with a reported 9 million developers.[13][14] Java was originally developed by James Gosling at Sun Microsystems (which has since merged into Oracle Corporation) and released in 1995 as a core component of Sun Microsystems' Java platform. The language derives much of its syntax from C and C++, but it has fewer low-level facilities than either of them.
The original and reference implementation Java compilers, virtual machines, and class libraries were originally released by Sun under proprietary licences. As of May 2007, in compliance with the specifications of the Java Community Process, Sun relicensed most of its Java technologies under the GNU General Public License. Others have also developed alternative implementations of these Sun technologies, such as the GNU Compiler for Java (bytecode compiler), GNU Classpath (standard libraries), and IcedTea-Web (browser plugin for applets).