object-oriented programming
- .QL
- 1C:Enterprise programming language
- ABAP
- ActionScript
- ActiveVFP
- ACUCOBOL
- Ada
- AgentCubes
- AgentSheets
- Aldor
- Allegro Common Lisp
- AmbientTalk
- Amiga E
- Apache Groovy
- Apex
- Ateji PX
- AutoIt
- Axum
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- Blitz BASIC
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- D
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- E
- Easy Programming Language
- eC
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- F#
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- Falcon
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- Game Oriented Assembly Lisp
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- GNU E
- Go
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- ILNumerics.Net
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- MATLAB Q37805571
- Mercury
- MetaQuotes Language MQL4/MQL5
- Microsoft C
- MIMIC
- Mirah
- Modelica
- Modula-3
- Monkey X
- MShell
- Nemerle
- NetRexx
- newLISP
- Newspeak
- NewtonScript
- Nim
- Noop
- NS Basic
- Nu
- o:XML
- Oak
- Oaklisp
- Oberon
- Oberon-2
- Object Lisp
- Object Oberon
- Object Pascal
- Object REXX
- Objective-C
- Objective-J
- Obliq
- OCaml
- OpenCL
- OpenEdge Advanced Business Language
- OptimJ
- Oxygene
- Oz
- ParaSail
- Pascal Script
- PascalABC.NET
- PeopleCode
- Pharo
- Phoenix Object Basic
- PHP
- PicoLisp
- Pike
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- Pony
- Powerscript
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- Processing
- Profile Scripting Language
- Prograph
- ProvideX
- Python
- Qore
- R
- Racket
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- ROOP
- RPL
- Ruby
- RUR-PLE
- Rust
- S
- S2
- Sather
- Scala
- Seed7
- Self
- Sense
- SenseTalk
- SETL
- Simula
- SK8
- SMALL
- Smalltalk
- Snap!
- Speedcoding
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- Strongtalk
- SuperCollider
- Swift
- SystemVerilog
- T
- Tcl
- Tea
- TOM
- Turbo Pascal
- Turbo51
- Turing
- TypeScript
- Ubercode
- Umple
- Unicon
- UnrealScript
- urbiscript
- Vala
- Vimscript
- Visual Basic
- Visual Basic (.NET)
- Visual FoxPro
- Visual Objects
- Visual Prolog
- webMethods Flow
- Wiring
- Wolfram Language
- Wyvern
- X10
- XBase++
- Xojo
- XOTcl
- Xtend
- Yoix
- Z++