C++ Program to Print Hollow Rhombus Star Pattern

Write a C++ program to print the hollow rhombus star pattern using for loop. 

#include<iostream>
using namespace std;

int main()
{
	int i, j, k, rows;
     
    cout << "Enter Hollow Rhombus Star Pattern Row = ";
    cin >> rows;

    cout << "Hollow Rhombus Star Pattern\n"; 

    for(i = 1; i <= rows; i++)
    {
    	for(j = 1; j <= rows - i; j++)
		{
            cout << " ";
        }
        for(k = 1; k <= rows; k++)
        {
            if (i == 1 || i == rows || k == 1 || k == rows)
            {
                cout << "* ";
            }
            else
            {
                cout << "  ";
            }
        }
        cout << "\n";
    }		
 	return 0;
}
C++ Program to Print Hollow Rhombus Star Pattern

This C++ example prints the hollow rhombus pattern of a given character using a while loop.

#include<iostream>
using namespace std;

int main()
{
	int i = 1, j, k, rows;
    char ch;
     
    cout << "Enter Hollow Rhombus Star Pattern Row = ";
    cin >> rows;

    cout << "Enter Symbol for Hollow Rhombus Pattern = ";
    cin >> ch;

    cout << "Hollow Rhombus Star Pattern\n"; 

    while( i <= rows)
    {
        j = 1; 
    	while(j <= rows - i)
		{
            cout << " ";
            j++;
        }
        k = 1;
        while( k <= rows)
        {
            if (i == 1 || i == rows || k == 1 || k == rows)
            {
                cout << ch << " ";
            }
            else
            {
                cout << "  ";
            }
            k++;
        }
        cout << "\n";
        i++;
    }		
 	return 0;
}
Enter Hollow Rhombus Star Pattern Row = 16
Enter Symbol for Hollow Rhombus Pattern = @
Hollow Rhombus Star Pattern
               @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ 
              @                             @ 
             @                             @ 
            @                             @ 
           @                             @ 
          @                             @ 
         @                             @ 
        @                             @ 
       @                             @ 
      @                             @ 
     @                             @ 
    @                             @ 
   @                             @ 
  @                             @ 
 @                             @ 
@ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ 

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Suresh is the founder of TutorialGateway and a freelance software developer. He specialized in Designing and Developing Windows and Web applications. The experience he gained in Programming and BI integration, and reporting tools translates into this blog. You can find him on Facebook or Twitter.