object-oriented

idaholab/moose

+5

Multiphysics Object Oriented Simulation Environment: A robust, modern, extendable, finite element/finite volume framework that excels at creating complex multiphysics simulations.

gravity

+6

Gravity Programming Language

eclipse-collections

+4

Eclipse Collections is a collections framework for Java with optimized data structures and a rich, functional and fluent API.

eo

+3

EOLANG, an Experimental Pure Object-Oriented Programming Language Based on 𝜑-Calculus

ruby/ruby

+3

The Ruby Programming Language

apple/pkl

+2

A configuration as code language with rich validation and tooling.

django-polymorphic

+2

Improved Django model inheritance with automatic downcasting

gansm/finalcut

+1

A Modern C++ Text-Based Widget Toolkit (TUI)