C Program to Print Hollow Rhombus Star Pattern

In this tutorial, i am going to show you how to print hollow rhombus star pattern with the help of for loop and while loop in c programs.

All C Programs to Print Hollow Rhombus Star Pattern

• C Program to Print Hollow Rhombus Star Pattern using For Loop
• C Program to Print Hollow Rhombus Star Pattern using While Loop

C Program to Print Hollow Rhombus Star Pattern using For Loop

#include<stdio.h>
int main()
{
    int i, j, k, rows;
    printf("Enter Hollow Rhombus Star Pattern Rows =  ");
    scanf("%d", &rows);
    printf("Hollow Rhombus Star Pattern\n");
    for(i = rows; i >= 1; i--)
    {
        for(j = 1; j <= i - 1; j++)
        {
            printf(" ");
        }
        for(k = 1; k <= rows; k++)
        {
            if(i == 1 || i == rows || k == 1 || k == rows)
            {
                printf("*");
            }
            else
            {
                printf(" ");
            }       
        }         
        printf("\n");   
    }
    return 0;
}

The result of the above c program; is as follows:

Enter Hollow Rhombus Star Pattern Rows =  8
Hollow Rhombus Star Pattern
       ********
      *      *
     *      *
    *      *
   *      *
  *      *
 *      *
********

C Program to Print Hollow Rhombus Star Pattern using While Loop

#include<stdio.h>
int main()
{
    int i, j, k, rows;
    printf("Enter Hollow Rhombus Star Pattern Rows =  ");
    scanf("%d", &rows);
    printf("Hollow Rhombus Star Pattern\n");
    i = rows;
    while(i >= 1)
    {
        j = 1;
        while( j <= i - 1)
        {
            printf(" ");
            j++;
        }
        k = 1;
        while( k <= rows)
        {
            if(i == 1 || i == rows || k == 1 || k == rows)
            {
                printf("*");
            }
            else
            {
                printf(" ");
            }  
            k++;     
        }         
        printf("\n"); 
        i--;  
    }
    return 0;
}

The result of the above c program; is as follows:

Enter Hollow Rhombus Star Pattern Rows =  8
Hollow Rhombus Star Pattern
       ********
      *      *
     *      *
    *      *
   *      *
  *      *
 *      *
********

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