"Write once, run anywhere" (WORA), or sometimes write once, run everywhere (WORE), is a slogan created by Sun Microsystems to illustrate the cross-platform benefits of the Java language. Ideally, this means Java can be developed on any device, compiled into a standard bytecode and be expected to run on any device equipped with a Java virtual machine (JVM). The installation of a JVM or Java interpreter on chips, devices or software packages has become an industry standard practice.

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  • "Write once, run anywhere" (WORA), or sometimes write once, run everywhere (WORE), is a slogan created by Sun Microsystems to illustrate the cross-platform benefits of the Java language. Ideally, this means Java can be developed on any device, compiled into a standard bytecode and be expected to run on any device equipped with a Java virtual machine (JVM). The installation of a JVM or Java interpreter on chips, devices or software packages has become an industry standard practice. This means a programmer can develop code on a PC and can expect it to run on Java enabled cell phones, as well as on routers and mainframes equipped with Java, without any adjustments. This is intended to save software developers the effort of writing a different version of their software for each platform or operating system they intend to deploy on. This idea originated as early as in the late 1970s when the UCSD Pascal were developed to produce and interpret p-code, which greatly popularized the system. UCSD Pascal is a key influence (along with the Smalltalk virtual machine) on the design of the Java virtual machine, as is cited by James Gosling. The catch is that since there are multiple JVM implementations, on top of a wide variety of different operating systems such as Windows, Linux, Solaris, NetWare, HP-UX, and Mac OS, there can be subtle differences in how a program may execute, which may require an application to be tested on various target platforms. This has given rise to the joke among Java developers, "Write Once, Debug Everywhere". However, for a developer, the abstraction layer that Java provides is usually more convenient than recompiling software for each combination of operating system and architecture that it should run on and still represents a significant reduction in work when developing and supporting an application on multiple platforms.
  • "Escriu un cop, executa arreu" o Write once, run anywhere (WORA), és un eslògan creat per Sun Microsystems per il·lustrar els beneficis de la multiplataforma del llenguatge Java . Idealment, això vol dir que Java pot ser desenvolupat sobre qualsevol dispositiu, compilat a bytecode estàndard i hom pot esperar executar-lo sobre qualsevol dispositiu equipat amb una Màquina Virtual de Java . La instal·lació d'una JVM o intèrpret de Java en xips, dispositius o paquets de software ha esdevingut una pràctica estàndard de la indústria. Per exemple, això vol dir que un programador pot desenvolupar codi en un PC i pot esperar que s'executi en telèfons mòbils, routers o mainframes equipats amb Java, sense cap ajustament addicional. D'aquí ve l'expressió Escriu un cop, executa arreu. La intenció d'aquesta filosofia consisteix en estalviar als programadors l'esforç d'escriure una versió diferent dels seus aplicatius per cada plataforma o sistema operatiu sobre els que el pensen posar en funcionament. La gràcia és el fet que les JVM estan escrites per una àmplia varietat de sistemes operatius, com ara Windows, Linux, Solaris, Netware, HP-UX i Mac OS. Per un desenvolupador, la capa del nivell d'abstracció que Java ofereix és sovint més profitosa que recompilar el software per cada combinació de sistema operatiu i arquitectura sobre les que hauria de córrer.
  • "Write once, run anywhere" (WORA、「一度（プログラムを）書けば、どこでも実行できる」)とは、Javaのプログラムがオペレーティングシステム (OS) などのプラットフォームに依存しないという意味の、サン・マイクロシステムズのJavaのスローガンである。Write once, run everywhere (WORE) ともいう。
  • WORA, "Write once, run anywhere" ou "Escreva uma vez, execute em qualquer lugar", é o slogan da Sun MicroSystems para exemplificar os benefícios multi-plataforma da Linguagem Java.
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  • "Write once, run anywhere" (WORA), or sometimes write once, run everywhere (WORE), is a slogan created by Sun Microsystems to illustrate the cross-platform benefits of the Java language. Ideally, this means Java can be developed on any device, compiled into a standard bytecode and be expected to run on any device equipped with a Java virtual machine (JVM). The installation of a JVM or Java interpreter on chips, devices or software packages has become an industry standard practice.
  • "Escriu un cop, executa arreu" o Write once, run anywhere (WORA), és un eslògan creat per Sun Microsystems per il·lustrar els beneficis de la multiplataforma del llenguatge Java . Idealment, això vol dir que Java pot ser desenvolupat sobre qualsevol dispositiu, compilat a bytecode estàndard i hom pot esperar executar-lo sobre qualsevol dispositiu equipat amb una Màquina Virtual de Java .
  • "Write once, run anywhere" (WORA、「一度（プログラムを）書けば、どこでも実行できる」)とは、Javaのプログラムがオペレーティングシステム (OS) などのプラットフォームに依存しないという意味の、サン・マイクロシステムズのJavaのスローガンである。Write once, run everywhere (WORE) ともいう。
  • WORA, "Write once, run anywhere" ou "Escreva uma vez, execute em qualquer lugar", é o slogan da Sun MicroSystems para exemplificar os benefícios multi-plataforma da Linguagem Java.
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  • Write once, run anywhere
  • Escriu un cop, executa arreu
  • Write once, run anywhere
  • WORA
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