OOP - Object-Oriented Programming - Assignment 1 - Solved

Task  
Declare and implement a class ColoredBox which stores a box of characters (Dynamic 2D array).  

The class has private member variables that are attributes of the box like the box itself(which is a dynamic 2D array of characters), a character that forms the box, dimensions of the box (length and width) and color of the box (integer). The class also has a static member variable that stores the biggest area among the boxes objects of the class. 

This is an example of a box with the character ‘*’ as its building block, length =5, width = 7, color = 4 (equivalent to Red)

  

This is another box with the character ‘-‘ as its building block, length =6, width = 10, color = 1 (equivalent to Blue)

  

The member functions that needs to be implemented in your class are:

1- A constructor or constructors that takes length and width of the box (mandatory), the character that constructs the box (optional and if not provided the character is ‘#’), the color of the box (optional and if not provided the color is white).

2- Getters and setters for the building block character and color of the box.

3- A display function that prints the box

4- A function displayTransposed that displays the box transposed, where the box below will be displayed as follows:

              ➔     

5- A function displayWider that displays the box on a wider scale, where the box below will be displayed as follows:

                          

6- A function that takes a color as a parameter and displays the box as a chess board where a character is displayed with the original color of the object, and the next character is displayed with the parameter color. For example let’s say we have a box object (boxObj) with dimensions 4 and 7, the character ‘&’, and the color 14 (yellow). We call the member function: boxObj.displayChess(4). The displayed box will look like:

  

7- A function getArea that returns the calculated area of the box (if for ex. Length = 10 and width = 3, then area = 30)

8- A static member function getMaxArea that returns the value of the static member variable.

9- A destructor that frees dynamic memory

 

Note that all of the display functions do not change the original box. They only display the box as required. So, when the function displayOriginal is called after any of the other display functions, the box is normal again.

 

General Notes: 

1-  To change the text color in your console:

a.  Include the header file windows.h(#include<windows.h>)

b.  Copy the code in the provided header file

“setColorFun.h” into your code, and use the function setColor in that file. For example to call the function such that it sets the text color to blue write setColor(1);

c.  The header file setColorFun.h has a comment with the possible colors and their integer equivalents.

2-  Copy the following main function as your main and make sure it works and provides the output shown. It is also included as an attachment so that you can easily copy the code.

 

int main() 

{ 

    int len,wid,col,col2;     char boxChar; 

    cout<<"Enter length and width of the box separated by a space: ";     cin>>len>>wid;     ColoredBox* cb1; 

    cb1 = new ColoredBox(len,wid); 

    cb1->display(); 

    cout<<"Set the box to another color: ";     cin>>col;     cb1->setColor(col); 

    cout<<"Displaying Transposed: "<<endl;     cb1->displayTransposed();     cout<<"Displaying Wider: "<<endl;     cb1->displayWider(); 

    cout<<"Displaying Chess, enter the other color: "<<endl;     cin>>col2; 

    cb1->displayChess(col2); 

    cout<<endl<<"Area="<<cb1->getArea();     cout<<endl<<"Max Area="<<cb1->getMaxArea();     delete cb1; 

 

    cout<<"Enter length,width,color,character of the box separated by spaces: ";     cin>>len>>wid>>col>>boxChar;     ColoredBox* cb2; 

    cb2 = new ColoredBox(len,wid,col,boxChar);     cb2->display(); 

    cout<<"Displaying Transposed: "<<endl;     cb2->displayTransposed();     cout<<"Displaying Wider: "<<endl;     cb2->displayWider(); 

    cout<<"Displaying Chess, enter the other color: "<<endl;     cin>>col2; 

    cb2->displayChess(col2); 

    cout<<"Displaying original again:"<<endl;     cb2->display(); 

    cout<<endl<<"Area="<<cb1->getArea();     cout<<endl<<"Max Area="<<cb1->getMaxArea();     delete cb2;     return 0;