Problem Statement
Write a C program to Make a Simple Calculator (Taking two Inputs & calculate their Addition, Subtraction. Multiplication, Division).
Source Code
//Write a C program to Make a Simple Calculator (Taking two Inputs & calculate their Addition, Subtraction. Multiplication, Division).
#include <stdio.h>
#include <stdlib.h>
void main(){
float var1,var2,ans;
int ch;
//Taking inputs
printf("Enter Variable 1:\t");
scanf("%f",&var1);
printf("Enter Variable 2:\t");
scanf("%f",&var2);
do{
//Printing Menu
printf("\n***********Calculator*************\n1.\tAddition\n2.\tSubtraction\n3.\tMultiplication\n4.\tDivision\n0.EXIT\n");
scanf("%d",&ch);
//Switch case for selecting operation
switch(ch){
case 0:
break;
case 1:
ans=var1+var2;
printf("Answer is:\t%.2f",ans);
break;
case 2:
ans=var1-var2;
printf("Answer is:\t%.2f",ans);
break;
case 3:
ans=var1*var2;
printf("Answer is:\t%.2f",ans);
break;
case 4:
ans=var1/var2;
printf("Answer is:\t%.2f",ans);
break;
default:
printf("wrong input");
}
}while(ch!=0);
}
Input
Enter Variable 1: 5.2
Enter Variable 2: 2.6
Output
***********Calculator************* 1. Addition 2. Subtraction 3. Multiplication 4. Division 0.EXIT 1 Answer is: 7.80 ***********Calculator************* 1. Addition 2. Subtraction 3. Multiplication 4. Division 0.EXIT 2 Answer is: 2.60 ***********Calculator************* 1. Addition 2. Subtraction 3. Multiplication 4. Division 0.EXIT 4 Answer is: 2.00 ***********Calculator************* 1. Addition 2. Subtraction 3. Multiplication 4. Division 0.EXIT 3 Answer is: 13.52 ***********Calculator************* 1. Addition 2. Subtraction 3. Multiplication 4. Division 0.EXIT 0