In this article, we will show how to write a C program to print the Alphabet U pattern or shape of stars using for loop, while loop, and functions.
#include <stdio.h>
int main()
{
int rows;
printf("Enter Rows = ");
scanf("%d", &rows);
for (int i = 0; i < rows; i++)
{
for (int j = 0; j < rows; j++)
{
if ((j == 0 || j == rows - 1) && (i != rows - 1))
{
printf("* ");
}
else if( i == rows - 1 && j != 0 && j != rows - 1)
{
printf("* ");
}
else
{
printf(" ");
}
}
printf("\n");
}
return 0;
}
Enter Rows = 17
* *
* *
* *
* *
* *
* *
* *
* *
* *
* *
* *
* *
* *
* *
* *
* *
* * * * * * * * * * * Instead of a for loop, this Alphabet U Pattern of stars program uses a while loop to iterate the rows and columns. For more star programs, click here.
#include <stdio.h>
int main()
{
int i, j, rows;
printf("Enter Rows = ");
scanf("%d", &rows);
i = 0;
while ( i < rows)
{
j = 0;
while ( j < rows)
{
if ((j == 0 || j == rows - 1) && (i != rows - 1))
{
printf("*");
}
else if( i == rows - 1 && j != 0 && j != rows - 1)
{
printf("*");
}
else
{
printf(" ");
}
j++;
}
printf("\n");
i++;
}
return 0;
}
Enter Rows = 15
* *
* *
* *
* *
* *
* *
* *
* *
* *
* *
* *
* *
* *
* *
********In this C program, we create an alphabetUPat function that accepts those values and prints the Alphabet U Pattern of the given char.
#include <stdio.h>
void alphabetUPat(int rows, char a)
{
for (int i = 0; i < rows; i++)
{
for (int j = 0; j < rows; j++)
{
if ((j == 0 || j == rows - 1) && (i != rows - 1))
{
printf("%c ", a);
}
else if( i == rows - 1 && j != 0 && j != rows - 1)
{
printf("%c ", a);
}
else
{
printf(" ");
}
}
printf("\n");
}
}
int main()
{
int rows;
char a;
printf("Enter Alphabet = ");
scanf("%c", &a);
printf("Enter Rows = ");
scanf("%d", &rows);
alphabetUPat(rows, a);
return 0;
}
