J

J is a high-level, general-purpose programming language that is dialect of APL. It was created in the early 1990s by Kenneth E. Iverson and Roger Hui. J is known for its concise and powerful syntax. J programs are typically much shorter than programs written in other languages. This is because J's syntax is designed to be as concise as possible. For example, the traditional Hello, World! program can be written in just two lines of J code: Hello, World! NB. Prints "Hello, World!" J also has a very powerful set of built-in operators and functions. This means that J programs can be very expressive. J's operators are often inspired by mathematical notation. For example, the operator +/ (plus slash) is the J equivalent of the sum function in other languages. J is a very efficient language. J programs often run much faster than programs written in other languages. This is because J is designed to be executed by a computer's processor, rather than by a human interpreter. J is a portable language. This means that J programs can be run on any platform that has a J interpreter. J programs can also be compiled into other languages, such as C. J is a free and open-source language. The J interpreter is available for all major operating systems.