This document provides summaries of several programming languages:
- Python is an interpreted, object-oriented programming language that is widely used due to its high-level built-in data structures and dynamic typing.
- Java is a general purpose, robust, object-oriented and secure programming language developed by Sun Microsystems in 1995. It is both a programming language and a platform.
- Ruby is an interpreted, high-level, general-purpose programming language designed in the mid-1990s that is dynamically typed and uses garbage collection. It supports procedural, object-oriented, and functional programming.