This program calculates the area of a rectangle based on length and breadth entered by the user.
Variables:1. length : (Datatype int): to represent the length of the rectangle.
2. breadth : (Datatype int): to represent the breadth of the rectangle.
3. area : (Datatype long): to store the result of the area of the rectangle is computed.
Functions:printf() : is used to display something on the console/screen. Format specifier %d in printf function is used to display a int variable on screen and %ld for long. \n is used to add a new line
scanf() : is used to fetch data inputted by the user on the console/screen using the keyboard. %d in scanf is indicated that inputted text is of type int and %ld for long.
Formula:Area of Rectangle: length x breadth
/*
* 1000+ C programs + tutorials
*
*
* 6_calculate_area_of_rectangle.c
*
* Created on: Oct 20, 2014
* Author: Code2care.org
*/
#include <stdio.h>
//#include <conio.h>
void main() {
int length;
int breadth;
long area;
// clrscr();
printf(" Program to calculate Area of a Rectangle : \n\n");
printf(" Enter the Length of a Rectangle : ");
scanf("%d", &length);
printf("\n\n Enter the Breadth of a Rectangle : ");
scanf("%d", &breadth);
area = length*breadth;
printf("\n\n Area of Rectangle with Length as %d and Breadth as %d = %ld \n\n",length,breadth,area);
// getch();
}
Output:
Program to calculate Area of a Rectangle :
Enter the Length of a Rectangle: 20
Enter the Breadth of a Rectangle: 10
Area of Rectangle with Length as 20 and Breadth as 10 = 200
Without using variable area
/*
* 1000+ C programs + tutorials
*
*
* 6_calculate_area_of_rectangle.c
*
* Created on: Oct 20, 2014
* Author: Code2care.org
*/
#include <stdio.h>
//#include <conio.h>
void main() {
int length,breadth;
// clrscr();
printf(" Program to calculate Area of a Rectangle : \n\n");
printf(" Enter the Length of a Rectangle : ");
scanf("%d", &length);
printf("\n\n Enter the Breadth of a Rectangle : ");
scanf("%d", &breadth);
printf("\n\n Area of Rectangle with Length as %d and Breadth as %d = %ld
\n\n",length,breadth,length*breadth);
// getch();
}
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