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Compare procedural and object oriented programming

Short answer

Procedural programming focuses on functions and steps, uses global data, and follows top-down design. Object-oriented programming centers on objects, encapsulates data for security, uses bottom-up design, and provides inheritance and polymorphism.

Compare procedural and object oriented programming.

PointProcedural programmingObject oriented programming
Basic unitFunction (procedure)Object / class
EmphasisOn steps (algorithm)On data
ApproachTop-downBottom-up
DataShared globally, not secureHidden inside objects, secure
ReuseOnly by functionsInheritance and polymorphism
Real-world modellingDifficultEasy
ExamplesC, Pascal, FORTRANC++, Java, C#

✓ Answer checked by Claude Opus 5.5 (high effort)

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