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KwickClips Cyber Safety and Ethics · 41 sec · free

What mode does a class use if none is written?

Short answer. private.

Can a derived class use base private members?

No.

Base public member

ModeBecomes
publicpublic
protectedprotected
privateprivate

Remember

Base private: never accessible
No mode in a class: private

A public base member became private. How? The mode decides. Public mode keeps it public. Protected mode makes it protected. Private mode makes it private. Base private members are never accessible. A class with no mode uses private.

This clip is from the full lesson: Inheritance: Extending Classes — 8 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++

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