Sushil's Blog on Programming Tutorials

Source Code:
#include <stdio.h>
#include <conio.h>

void sum(int, int);
void multiply(int, int);
void divide(int, int);
void subtract(int, int);



void main()
{
int opt, x, y;
while(1)
{
clrscr();
printf("Simple Menu Driven Program");
printf("\n-----------------------------\n");
printf("1. Sum\n");
printf("2. Subtract\n");
printf("3. Multiply\n");
printf("4. Divide\n");
printf("5. Exit\n");
printf("--------------------------------\n");
printf("Select option (1-5) : ");
scanf("%d", &opt);

switch(opt)
{
case 1:
{
printf("Enter Two Number: ");
scanf("%d %d", &x, &y);
sum(x,y);
break;
}
case 2:
{
printf("Enter Two Number : ");
scanf("%d %d", &x, &y);
subtract(x,y);
break;
}
case 3:
{
printf("Enter Two Number : ");
scanf("%d %d", &x, &y);
multiply(x,y);
break;
}
case 4:
{
printf("Enter Two Number : ");
scanf("%d %d", &x, &y);
divide(x,y);
break;
}
case 5:
{
exit(0);
}
default :
{
printf("Select Valid Option (1-5) :");
break;
}
}
getch();
}
}

void sum(int a, int b)
{
int sum = a+b;
printf("Sum of %d and %d is %d", a, b, sum);
}
void subtract(int a , int b)
{
int sub = a-b;
printf("Subtraction of %d and %d is %d", a, b, sub);
}
void divide(int a, int b)
{
float div = (float)a/b;
printf("Division of %d and %d is %f", a, b, div);
}
void multiply(int a, int b)
{
int mul = a*b;
printf("Multiplication of %d and %d is %d", a, b, mul);
}