To make a simple calculator in C++
programming which performs basic four mathematical operations
(addition, subtraction, multiplicatin, and division)
depending on the user's choice, use the switch
case to identify the input operator to perform required
calculation then display the result as shown here in the following program.
C++ Programming Code to Make Simple Calculator
Following is a simple C++ program which is a menu-driven program based on simple calculation
like addition, subtraction, multiplication and division according to user's choice:
/* C++ Program - Make Simple Calculator */
#include<iostream.h>
#include<stdio.h>
#include<conio.h>
#include<stdlib.h>
void main()
{
clrscr();
float a, b, res;
char choice, ch;
do
{
cout<<"1.Addition\n";
cout<<"2.Subtraction\n";
cout<<"3.Multiplication\n";
cout<<"4.Division\n";
cout<<"5.Exit\n\n";
cout<<"Enter Your Choice : ";
cin>>choice;
switch(choice)
{
case '1' : cout<<"Enter two number : ";
cin>>a>>b;
res=a+b;
cout<<"Result = "<<res;
break;
case '2' : cout<<"Enter two number : ";
cin>>a>>b;
res=a-b;
cout<<"Result = "<<res;
break;
case '3' : cout<<"Enter two number : ";
cin>>a>>b;
res=a*b;
cout<<"Result = "<<res;
break;
case '4' : cout<<"Enter two number : ";
cin>>a>>b;
res=a/b;
cout<<"Result = "<<res;
break;
case '5' : exit(0);
break;
default : cout<<"Wrong Choice..!!";
break;
}
cout<<"\n------------------------------------\n";
}while(choice!=5 && choice!=getchar());
getch();
}
When the above C++ program is compile and executed, it will produce the following result:
Program Video with Compile and Run
Same Program in Other Language
You may like the same program in other programming languages:
