(C++) CPP Programs - 3

3. Write a C program to simulate a simple calculator that performs arithmetic operations like addition, subtraction, multiplication and division only on integers. Error message should be reported, if any attempt is made to divide by 0. Use switch statement.

/* Simple calculator*/

#include

#include

void main()

{

int a,b,sum,sub,mul,div,choice;

clrscr();

printf("Enter any two integer\n\a");

scanf("%d%d",&a,&b);

printf("1.addition\n2.subtraction\n3.multiplication\n4.division\n");

printf("Enter your choice\n\a");

scanf("%d",&choice);

switch(choice)

{

case 1:printf("sum=%d\n\a",(a+b));

break;

case 2:printf("subtraction=%d\n",(a-b));

break;

case 3:printf("multiplication=%d\n",(a*b));

break;

case 4:

{

if(b==0)// to check whether 2^nd operand is null

printf("Error!\n\a");

else

printf("Division=%d\n",(a/b));

break;

}

default:printf("Invalid choice\n");

}

getch();

}