What is the famous slogan associated with Java?

The famous slogan associated with Java is “Write once, run anywhere.” It expresses Java’s goal of letting developers compile a program once and run it on different operating systems through a compatible Java Virtual Machine (JVM).

Sun Microsystems promoted the phrase in the 1990s as Java moved from an internal project to a public platform. Java source code is compiled into platform-independent bytecode, while each operating system uses its own JVM implementation to execute that bytecode.

The slogan describes an important design goal, not an absolute guarantee. Differences in JVM implementations, operating systems, graphics systems, file paths, or native libraries can still require adjustments. This led to the joking variation “Write once, debug everywhere.”

“Write once, run everywhere” is also encountered as an alternate version, but “Write once, run anywhere” is the standard and most closely associated wording. Java’s portability also helped it become popular for server applications, enterprise software, and Android development.