Program to hollow diamond star pattern in C language

Program to hollow diamond star pattern in C language

In this article, we will discuss the Program to hollow diamond star pattern in C language- using loops

In this post, we will learn how to create a hollow diamond star pattern using for, while and do-wile loop in C language

Hollow diamond star pattern- using for loop

Program 1

This program allows the user to enter the number of rows and the symbol then the program displays the hollow  diamond star pattern with the given symbol using for loop in C language

#include <stdio.h>
#include <stdlib.h>

int main()
{
     int i,j,rows;
     char ch;
    printf("Enter the number of rows: \n");
    scanf("%d%c",&rows,&ch);
    printf("Enter symbol: \n");
    scanf("%c",&ch);


for(i=1; i<=rows; i++){
    for(j=rows; j>i; j--){
     printf(" ");
  }
  printf("%c",ch);
  for(j=1; j<(i-1)*2; j++){
     printf(" ");
  }
  if(i==1){
    printf("\n");
  }
  else{
    printf("%c",ch);
    printf("\n");
  }
}

for(i=rows-1; i>=1; i--){
    for(j=rows; j>i; j--){
     printf(" ");
  }
  printf("%c",ch);
  for(j=1; j<(i-1)*2; j++){
    printf(" ");
  }
  if(i==1){
    printf("\n");
  }
  else{
    printf("%c",ch);
    printf("\n");
  }
  }
getch();
    return 0;
}

When the above code is executed it produces the folowing result

Hollow diamond star pattern- using while loop

Program 1

This program allows the user to enter the number of rows and the symbol then the program displays the hollow  diamond star pattern with the given symbol using while loop in C language

#include <stdio.h>
#include <stdlib.h>

int main()
{
    int rows;
    char ch;
    printf("Enter the mnumber of rows\n");
    scanf("%d%c",&rows,&ch);
    printf("Enter the symbol\n");
    scanf("%c",&ch);
    int i=1;
    while(i<=rows){
  int j=rows;
    while( j>i){
     printf(" ");
      j--;
  }
  printf("%c",ch);
  j=1;
  while(j<(i-1)*2){
     printf(" ");
      j++;
  }
  if(i==1){
    printf("\n");
  }
  else{
            printf("%c",ch);
    printf("\n");
  }
   i++;
}

  i=rows-1;
while(i>=1){
  int j=rows;
    while(j>i){
     printf(" ");
      j--;
  }
  printf("%c",ch);
  j=1;
  while(j<(i-1)*2){
     printf(" ");
      j++;
  }
  if(i==1){
    printf("\n");
  }
  else{
    printf("%c",ch);
    printf("\n");
  }
   i--;
  }
getch();
    return 0;
}

 

When the above code is executed it produces the folowing result

Hollow diamond star pattern- using for loop

Program 1

This program allows the user to enter the number of rows and the symbol then the program displays the hollow  diamond star pattern with the given symbol using do.while loop in C language

#include <stdio.h>
#include <stdlib.h>

int main()
{
     int i,j,rows;
     char ch;
    printf("Enter the number of rows: \n");
    scanf("%d%c",&rows,&ch);
    printf("Enter symbol: \n");
    scanf("%c",&ch);

i=1;
do{
        j=rows;
    do{
     printf(" ");
 j--;
  }while(j>i);
  printf("%c",ch);
  j=1;
  do{
     printf(" ");
     j++;
  }while(j<(i-1)*2);
  if(i==1){
    printf("\n");
  }
  else{
    printf("%c",ch);
    printf("\n");
  }
   i++;
}while(i<rows);
i=rows-1;
do{
        j=rows;
  do{
     printf(" ");
j--;
  } while(j>i);
  printf("%c",ch);
  j=1;
  do{
    printf(" ");
     j++;
  }while(j<(i-1)*2);
  if(i==1){
    printf("\n");
  }
  else{
    printf("%c",ch);
    printf("\n");
  }
  i--;
  }while( i>=1);
getch();
    return 0;
}

 

When the above code is executed it produces the folowing result

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Nested do while loop in C language

 

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