Write once, run anywhere

Template:Short description Write once, run anywhere (WORA), or sometimes write once, run everywhere (WORE), is a 1995<ref>Template:Cite web</ref> slogan from Sun Microsystems to describe the cross-platform benefits of the Java programming language.<ref>Template:Cite web</ref><ref>Template:Cite web</ref> It refers to how compiled bytecode from Java source code can run on any system with a compatible Java virtual machine (JVM). In reality, there can be subtle differences in how a program executes due to variability in JVM implementation and host operating system which lead to the comical slogan: Write once, debug everywhere.<ref>Template:Cite web</ref>

As Java has achieved popularity, the installation of a JVM on chips, devices, and software packages became an industry standard practice.

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