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KwickClips Cyber Safety and Ethics · 41 sec · free

Why does obj.bal give a compile error?

Short answer. bal is private.

What should usually be public?

Member functions.

private vs public

LabelUsed by
privateclass only
publicanywhere
no labelprivate

Remember

Data: private
Functions: public
End class with };

Why can main not use a private member? Access labels decide who may use a member. Private works only in the class. Public works anywhere. No label means private. Keep data private. Make functions public. End with a semicolon.

This clip is from the full lesson: Classes and Objects with Constructors and Destructors — 7 minutes, with the tables, the quick answers and the whole lesson in text.

Useful for: NIOS Senior Secondary Computer Science (330), Programming All levels C++, Programming All levels C++, Programming All levels C++

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