c program to display alphabet pattern J with asterisk

 C program

C program to Print  Alphabet  J star pattern 

Example 

#include <stdio.h>

int main()

{

    int a, b;

    int n = 7;

// Height of the J pattern

    for (a = 0; a < n; a++)

{

        for (b = 0; b < n; b++)

{

            // Print the vertical part of J

           

if (b == n / 2 && a != 0 ||

                (a == n - 1 && b <= n / 2) ||

                (a == n - 2 && b == 0))

                printf("*");

            else

                printf(" ");

        }

        printf("\n");

    }

    return 0;

}

This C Program Print a pattern in the shape of the capital letter J using asterisks "*"

Explain Program

Step :1

Header File

#include <stdio.h>

•  Standard I/O library to use the printf function for output.

Step :2

.Main Function

int main()

entry point of any C program. Execution starts 

Step :3

Variable Declarations

int n = 7; // Height of the J pattern

• a and b: Loop counters.

• n = 7: The size of the square grid (7 rows × 7 columns). 

Step :4

Outer Loop – Row

for (a = 0; a < n; a++)

• Control the rows from a = 0 to a = 6 (7 rows in total).

Each loop iteration correspond to one line of output

Step :5

 Inner Loop – Columns

for (b = 0; b < n; b++)

• Control the columns from b = 0 to b = 6 

• Prints either a * or a space " " for each cell.

Step :6

Main Logic – if Condition

if (b == n / 2 && a != 0 ||

    (a == n - 1 && b <= n / 2) ||

    (a == n - 2 && b == 0))

    printf("*");

else

    printf(" ");

analyze each part of this condition

Step :7

 Condition 1:

b == n / 2 && a != 0

• n / 2 = 7 / 2 = 3 (integer division).

• This checks:

• Column 3 (b == 3)

• For all rows except the first (a != 0)

 Draws the vertical bar of ‘J’, starting from row 1 down to 6 at the center.

Step :8

Condition 2:

a == n - 1 && b <= n / 2

• a == 6 (bottom row)
• b <= 3 → columns 0, 1, 2, 3

 bottom horizontal line of 'J'.

Step :9

Condition 3:

a == n - 2 && b == 0

• a == 5 (second-last row)
• b == 0 → first column

Add a small hook at the bottom left (curve of ‘J’)

Step :10

7. Line Break

printf("\n");

• After finishing each row (b loop ends), moves to a new line for the next row 

. Return Statement

return 0;

C program to Print  Alphabet  J star pattern 
Output

Related Post :-

C program to print alphabet H star

C program to print alphabet G star