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KwickClips Cyber Safety and Ethics · 42 sec · free

Which is the parent?

Short answer. The base class.

How do you derive a class?

With a colon: class D : public B.

Remember

Base: the parent class
Derived: the child class
class D : public B

Student and Teacher both need age. Write it twice? No. Person is the base class. Kid is derived from it. Kid gets age for free, so it prints sixteen. Base is the parent. Derived is the child. Use a colon to derive.

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++

More KwickClips from this lesson

Table: base public member under public, protected and private modes.What mode does a class use if none is written?41 secTable: single A to B, multiple A and B to C, multilevel A to B to C.What does multiple mean?40 secNumbered list: A() base, B() derived, ~B() derived, ~A() base.Which constructor runs first?43 sec
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