## Inheritance

here is the link for the zoom interactive lab it will be available at 5:30 to 7:00
on monday and wednesday
https://csub.zoom.us/j/92095637957?pwd=ZER6WU9qakJLS0Naek5aSlpMUlBiZz09
Video

You will create a Square and a Triangle Class,
Triangle is a child class of Square
there is a main , Makefile and class files provided for you
put your class defenitions in the .h files and your function bodies in the .cpp files
your classes will be as follows
File: Square.h

```
#pragma once
#include "cmpslib19.h"
#include "easylogging++.h"
// start your square class
// put the bodies of the functions in the Square.cpp file
// the Square class will contain
// data members
protected:
double length;
// functions
public:
Square();
/* set length to 0 */
Square(double);
/* set length to parameter, use your function to SetLength so it has the logic to ensure it is
a legitimate value ( you dont want the same logic in more than one place) */
~Square();
/* just log start & end */
void SetLength(double);
/* set length to value passed in , if value is less than zero set length to 0 */
double Area();
/* return the area, (length * length) */
string ToString();
/* return a formatted string like the example */
// end your square class, dont forget the trailing ;
```

File: Triangle.h

```
#pragma once
#include "cmpslib19.h"
#include "easylogging++.h"
#include "Square.h"
// start your Triangle class
// put your function bodies in the Triangle.cpp file
// the Triangle class will contain
//data members
protected:
double height;
//functions
public:/**/
Triangle();
/* set height to 0 ( use SetHeight ), length should be set in Square constructor */
Triangle(double, double);
/*
set length to value one passed in
set height to value two passed in
use SetLength (inherited from Square) and SetHeight
*/
~Triangle();
/* just log start & end */
void SetHeight(double );
/*
this is a an additional function that the square class did not have
set height to value passed in , if value is less than zero set height to 0 */
double Area();
/* return the area, ( 5. (length * height))
we are overriding the Area function of the Square class as we need it to be different as
the formula to calculate the area of a Triangle is different from that of a Square
*/
string ToString();
/* return a formatted string like the example */
// end of Triangle class , dont for get trailing ;
```

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