Keyphrases
- programming language
- object oriented
- general purpose
- high level
- programming environment
- strongly typed
- object oriented programming
- data abstraction
- logic programming
- user interface
- end users
- computer programs
- specification language
- software engineering
- object oriented concepts
- database languages
- functional language
- denotational semantics
- open source
- functional programming
- programming tool
- high level programming language