Java is a popular programming language that every programmer should learn. ... The idea behind the language is WORA, which stands for Write Once, Run Anywhere.

To what does Java owe its longevity? We posed that question to Barry Burd, author of the best-selling book Android Application Development All-in-One for Dummies. Burd cited the backwards ...

Java almost immediately became popular for mainstream programming due to its portability and large set of built-in libraries. The then-mantra for Java was “write once, run anywhere.” ...