C code to display Parallelogram star pattern using Do-while loop
C code to display Parallelogram star pattern using Do-while loop
In this article, we will discuss the concept ofC code to display Parallelogram star pattern using Do-while loop
In this post, we are going to learn how to write a program to print parallelogram and Hollow parallelogram patterns using do-while loop in C programming language.
Print Parallelogram star patterns Using do-while loop
Code to print Parallelogram star pattern
Parallelogram star pattern
Program 1
This program allows the user to enter the number of rows , columns and star then it will display the parallelogram star pattern using do-while loop in C programming language
#include
#include
int main() {
int i,j,rows,columns;
char ch;
printf("Enter the number of rows\n");
//Ask input from the user to rows
scanf("%d",&rows);
//store the number of rows in the rows variable entered by user
printf("Enter the number of columns\n");
//Ask input from the user to columns
scanf("%d%c",&columns,&ch);
//store the number of columns in the columns variable entered by user
printf("Enter the character for pattern\n");
//Ask input from the user to character
ch=getchar();
printf("\n");
//move to next line
i=1;
do{//outer for loop
j=1;
do{//inner for loop
printf(" ");//print space
j++;
}while(j<=rows-i);
j=1;
do{//inner for loop
printf("%c",ch);//print symbol after space
j++;
}while(j<=columns);
printf("\n");//move to next line
i++;
}while(i
When the above code is executed, it produces the following result
Output
Code to print Hollow Parallelogram star pattern
Program 2
This program allows the user to enter the number of rows , columns and star then it will display the Hollow parallelogram star pattern using do-while loop in C programming language
#include
#include
int main() {
int i,j,rows,columns;
//integer variable declaration
char ch;
//char variable declaration
printf("Enter the number of rows\n");
//Ask input from the user to rows
scanf("%d",&rows);
//store the user input in the rows variable
printf("Enter the number of columns\n");
//Ask input from the user to columns
scanf("%d%c",&columns,&ch); //store the user input- columns and char
printf("Enter the character for pattern\n");
ch=getchar();
printf("\n");
i=1;
do{//outer for loop
j=0;
do{//inner for loop
printf(" ");//print space
j++;
}while(j<=rows-i);
j=1;
do{//inner for loop
if(i==1 || i==rows || j==1 || j==columns){
printf("%c",ch);//print symbol after space
}
else{
printf(" ");//print space
}
j++;
}while(j<=columns);
printf("\n");//move to next line
i++;
}while(i<=rows);
getch();
return 0;
}
When the above code is executed, it produces the following result
