Create a new class called Diamond that will print diamond shapes on the screen b

Question

Create a new class called Diamond that will print diamond shapes on the screen based on its "size", which is the number of "stars" along a side. i. e. If the diamond size is 2. it should appear like: Your new Diamond class should have a private member variable that stores the integer size of the diamond. Create two constructors in the Diamond class: One constructor should have no parameters, but should be able to be used to create a diamond object of size 1. Another constructor should have a single integer parameter which should be used to set the appropriate member variable. NOTE: Neither constructor should use cin or cout because constructors should be used to simply create a new Diamond object, not to print it or do I/O. Prompt the user to input a positive integer that refers to the size of a diamond your program will draw on the screen. If this number is not positive or zero, thank the user and end the program. Otherwise, your program should declare a variable of type Diamond thereby calling a constructor to create this object of this size. Use your public member function to print the hollow diamond of that size.

Explanation / Answer

#include <iostream>

using namespace std;

class Diamond

{

public:

Diamond()

{

size=1;

}

Diamond(int f):size(f)

{

}

~Diamond()

{

}

void display()

{

int k=2*size-1;

int b=0;

for (int i = 0; i < k; i++)

{

if(i==size){b=b-2;}

for (int j = 0; j < k; j++)

{

if((j==(size+b-1))||(j==(size-b-1)))

cout<<"*";

else

{

cout<<" ";

}

}

cout<<endl;

if(i<size)b++;

else b--;

}

}

private:

int size;

};

int main(){

int n;

cin>>n;

if((n>0))

cout<<"thanks"<<endl;

Diamond k(n);

k.display();

return 0;

}

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