calculater for c++ beginner
#include<iostream>
#include<cmath>
using namespace std;
int main()
{
double num1,num2;
char operation,redo;
cout<<"Welcome to the C++ calculater"<<endl;
cout<<endl<<endl;
do
{
//receiving the variables from input
cout<<" Please enter an operation which you like to calculate (+,-,*,/,s)";
cout<<"{s stands for swap}:";
cin>>operation ;
cout<<endl<<endl;
cout<<" Please enter two numbers to apply your requested operation(";
cout<<operation<<"):"<<endl<<"first num:";
cin>>num1;
cout<<"second num:" ;
cin>>num2;
cout<<endl;
switch (operation)
{
case'+':
cout<<"Addition of two numbers ("<<num1<<","<<num2<<"):";
cout<<num1+num2<<endl;
break;
case'-':
cout<<"Substraction of two numbers ("<<num1<<","<<num2<<"):";
cout<<num1-num2<<endl;
break;
case'*':
cout<<"Multiplication of two numbers ("<<num1<<","<<num2<<"):";
cout<<num1*num2<<endl;
break;
case'/':
cout<<"Division of two numbers ("<<num1<<","<<num2<<"):";
if(num2==0)
{
cout<<"Not Exist"<<endl;
}
cout<<(num1/num2)<<endl;
break;
case's':
cout<<"The swap of two numbers ("<<num1<<","<<num2<<"):";
swap(num1,num2);
cout<<"1stnumber="<<num1<<"and 2nd number="<<num2<<endl<<endl;
break;
default:
cout<<"unknown command"<<endl;
}
cout<<"enter y or Y to continue:";
cin>>redo;
cout<<endl<<endl;
}
while(redo=='y'||redo=='Y');
return 0;
}
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