Choices Program!!

This Program mainly illustrates the use of 'Switch" control structure. When there are varied number of options and when we have to select 1 option , 'switch' is used.

We first get the values of 2 numbers and enter our choice to add,subtract,multiply or divde the numbers.

Important points to remember while using 'switch':

• The value that is being switched must be an integer [x in this program].
• There must be a space between the 'case' ant the no. [case 1:]
• Every caes must end up with the 'break'.
• 'default' is mandatory. 'break' is not necessary for default.

 PROGRAM:

#include<stdio.h>
#include<conio.h>
void main()
 {
  int a,b,x;
  float c;
  clrscr();
  printf("Enter A:");
  scanf("%d",&a);
  printf("Enter B:");
  scanf("%d",&b);
  printf("\n");
  printf("1 - Add\n2 - Subtract\n3 - Multiply\n4 - Divide\n");
  printf("Enter your choice:");
  scanf("%d",& x);
  switch(x)
   {
    case 1: c=a+b;
        printf("The Sum is:%f",c);
        break;
    case 2: c=a-b;
        printf("The difference is:%f", c);
        break;
    case 3: c=a*b;
        printf("The Product is:%f", c);
        break;
    case 4: c=a/b;
        printf("The Quotient is:%f",c);
        break;
    default: printf ("Invalid option");
   }
  getch();
 }