Child class reading parent class methods – Computer Sir Ki Class

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Code Learning #CPP#4676    siteicon   siteicon  

Child class reading parent class methods

Understanding how a child class object can read the parent class methods/functions easily.

Learning Objectives

  • Learning how child class can read parent class methods or functions once it is inherited with public accessibility.

Source Code

TC++ #4676

 

Source Code

Run Output

Some birds can fly up to 11300 meters.
Some birds can have max wing span of 4 meters.

Code Understanding

class FlyingThing { public: int max_height(){return 11300;}};
A class which is parent class of class Bird in this case. It has a method to return max_height a bird can fly.

class Bird:public FlyingThing { public: int max_wing_spread(){return 4;}};
A derived class which is derived from its parent class FlyingThing. It has a method which returns max-wing spread a bird can spread.

int main() {
Bird b;
Declaring of an object of child class only. Parent class object is not declared.

cout<<“Some birds can fly up to ” <<b.max_height()<<” meters.”<<endl;
Here we are using method max_height of parent class with object of child class. This is possible due to inheritance only.

cout<<“Some birds can have max wing span of “<<b.max_wing_spread()<<” meters.”<<endl;
Here we are using method max_wing_spread of child class only. This is possible to use here being it to be a public access.

return 0;
}

Notes

  • public accessibility is important while inheriting the child class in this type of code. Other accessibility may pose certain limits.


Suggested Filename(s): smpl-inh2.cpp,simple-inheritance2.cpp,child-reading-parent-methods.cpp



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sunmitra| Created: 15-Sep-2018 | Updated: 15-Sep-2018|






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