Program to Print the Hollow Diamond Star Pattern

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Problem statement:- Program to Print the Hollow Diamond Star Pattern.

 Data requirement:-

   Input Data:- row_size

  Output Data:- *

  Additional Data:-out, in or inn(for python), print_control_x

Program in C

Here is the source code of the C Program to Print the Hollow Diamond Star Pattern.

Code:

#include<stdio.h>
int main()
{
    printf("Enter the row size:");
    int row_size;
    scanf("%d",&row_size);
    int in,out,p;
    int print_control_x=row_size/2+1;

     for(out=1;out<=row_size;out++)
       {
           for(in=1;in<=row_size;in++)
           {
               if(in==print_control_x || in==row_size-print_control_x+1)
               {
                printf("*");
                 }
               else
               {
                 printf(" ");
               }
             }
           if(out<=row_size/2)
           print_control_x--;
           else
              print_control_x++;
            printf("\n");
    }

}

Input/Output:

Enter the row size:5
  *
 * *
*   *
 * *
  *

Program in C++

Here is the source code of the C++ Program to Print the Hollow Diamond Star Pattern.

Code:

#include<iostream>
using namespace std;
int main()
{
    cout<<"Enter the row size:";
    int row_size;
    cin>>row_size;
    int in,out,p;
   int print_control_x=row_size/2+1;

     for(out=1;out<=row_size;out++)
       {
           for(in=1;in<=row_size;in++)
           {
               if(in==print_control_x || in==row_size-print_control_x+1)
               {
               cout<<"*";
                 }
               else
               {
                 cout<<" ";
               }
             }
           if(out<=row_size/2)
           print_control_x--;
           else
              print_control_x++;
            cout<<"\n";
    }
}

Input/Output:

Enter the row size:7
   *
  * *
 *   *
*     *
 *   *
  * *
   *

Program in Java

  

Here is the source code of the Java Program to Print the Hollow Diamond Star Pattern.

Code:

import java.util.Scanner;
public class StarPattern13 {

public static void main(String[] args) {
Scanner cs=new Scanner(System.in);
        System.out.println("Enter the row size:");
       int out,in;
       int row_size=cs.nextInt();
       int print_control_x=row_size/2+1;
       for(out=1;out<=row_size;out++)
       {
           for(in=1;in<=row_size;in++)
           {
               if(in==print_control_x || in==row_size-print_control_x+1)
               {
                  System.out.printf("*");
               }
               else
               {
                System.out.printf(" ");    
               }
           }
           if(out<=row_size/2)
           print_control_x--;
           else
              print_control_x++;
           System.out.println(); 
       }
       cs.close();
 }
}

Input/Output:

Enter the row size:
9
    *    
   * *   
  *   *  
 *     * 
*       *
 *     * 
  *   *  
   * *   
    *    

Program in Python
  

Here is the source code of the Program to Print the Hollow Diamond Star Pattern.

Code:

row_size=int(input("Enter the row size:"))
print_control_x=row_size//2+1
for out in range(1,row_size+1):
    for inn in range(1,row_size+1):
        if inn==print_control_x or inn==row_size-print_control_x+1:
            print("*",end="")
        else:
            print(" ", end="")
    if out <= row_size // 2:
        print_control_x-=1
    else:
        print_control_x+=1
    print("\r")

Input/Output:

Enter the row size:3
 * 
* *
 * 
More:-

C/C++/Java/Python Practice Question