C Program: Make a Calculator by using switch Statement

Switch statement is very useful for creating a calculator which performs following operations: Addition, Substraction, Multiplication, Division and Modulus

#include<stdio.h>

#include<conio.h>

void main()

{

char a,b,c,d;

clrscr();

printf("Enter the values of a and b:");

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

printf(" Enter your choice between 1 to 5 /n");

scanf("%d , &d);
 
switch(d)                                        

{

case 1;

c=a+b;

printf(" Addition=%d", c);

break:

case 2;

c=a-b;

printf(" Substraction=%d" , c);

break:

case 3;

c=a*b;

printf(" Multiplication=%d", c);

break:

case 4;

c=a/b;

printf(" Divide=%d", c);

break:

case 5;

c=a%b;

printf(" Remainder=%d",c );

break:

default:

printf(" Invalid Result");

break:

}

Output1:

Enter the values of a and b:

3

5

Enter your choice between 1 to 5

1

Addition=8

Output2:

Enter the values of a and b:

5

5

Enter your choice between 1 to 5

3

Multiplication=25

Output3:

Enter the values of a and b:

50

10

Enter your choice between 1 to 5

4

Divide=5

Output4:

Enter the values of a and b:

8

2

Enter your choice between 1 to 5

5

Remainder=0

Output5:

Enter the values of a and b:

3

5

Enter your choice between 1 to 5

9

Invalid Result

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