Gain insights into dynamic memory allocation, creating classes, and functions. Delve into inheritance, I/O, exception handling. Explore 90+ examples to master advanced C++ functionalities.

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If you’re looking to sharpen up your C++ programming skills, then you’re in the right place. You will start with learning about dynamic memory allocation, how to create classes, and constructors. 

In the latter half of the course, inheritance, functions, I/O, exception handling, and more. Throughout the course, you will study over 90 carefully designed examples aimed to enhance your understanding of the C++ language.  

By the time you finish this course, you will be able to use more advanced functionality in your C++ programs.

C++ Programming for Experienced Engineers

# Challenge

Write a program to create a `Shape` class containing a _pure virtual `draw( )` function_. Inherit from these two classes `Rectangle` and `Circle`. Create an array of **upcasted pointers** in `main( )` and call the `draw( )` function using its elements. Each call should take control of the appropriate class’ `draw( )` function.

# Sample run	 	                        
Here’s what you should see when you run the program. 
```txt
In Rectangle class's draw
In Circle class's draw
In Rectangle class's draw
In Circle class's draw
In Rectangle class's draw
In Circle class's draw
In Rectangle class's draw
In Circle class's draw
In Rectangle class's draw
In Circle class's draw
```

# Coding exercise

Your job is to define a pure virtual `draw ( )` method in the base class, `Shape`. Also, define `draw ( )` methods in the derived classes `Circle` and `Rectangle`.


Learn to create a pure virtual Draw ( ) function in a Shape Class.

Getting Off the Ground

Starters

Basic C++ Examples

Class Organization Examples

Class Constructor Examples

Classes and Objects Examples

More Classes and Objects Examples

Function Examples

Function Overloading Examples

Operator Overloading Examples

Free Store Examples

Inheritance Examples

Virtual Function Examples

Input Output Examples

Template Examples

Exception Handling Examples

STL Examples

Miscellaneous Examples

Conclusion

Pure virtual Draw( ) Function

Challenge