juniorOOP
What is a constructor in OOP?
Updated May 17, 2026
Short answer
A constructor initializes an object when it is created.
Deep explanation
It sets initial values for object properties and runs automatically during instantiation.
Real-world example
Setting user profile data when signing up.
Common mistakes
- Forgetting default initialization logic.
Follow-up questions
- Can constructors be overloaded?
- Do constructors return values?