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KwickClips Java · 42 sec · free

How does OOP help with bugs?

Short answer. You fix one class, not the whole app.

How does OOP avoid copying code?

Inheritance reuses code from a parent class.

Why OOP scales

Each class does one job
Inheritance reuses code
Fix one class, not the app

Remember

Small classes, one job each
Reuse code, fix in one place

Big apps have lakhs of lines. How do teams cope? Here is why. Each class does one job. Inheritance reuses code. A bug means fixing one class, not the app. Two points. Keep classes small. Reuse code, and fix in one place.

This clip is from the full lesson: Principles of Object Oriented Programming — 7 minutes, with the tables, the quick answers and the whole lesson in text.

Useful for: CBSE Class 11 Information Technology (802), CBSE Class 12 Information Technology (802), ICSE Class 9 Computer Applications, ICSE Class 9 Computer Applications

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