Calculate Area of a Rectangle


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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