Question

c++ /Write a C++ program that creates a switch that adds and subtracts two numbers respectively.

Answer 1

To do basic operation addition and subtraction i used switch case and shown the output in case of any problem let me know in comments.

Code:-

//including header files

#include<iostream>

using namespace std;

//main method

int main()

{

//taking input

float a,b;

//input first variable

cout<<"Enter Ist no: ";

cin>>a;

//input second variable

cout<<"Enter Second no: ";

cin>>b;

//Menu

cout<<"\nMenu\n1.Addition\n";

cout<<"2.Subtraction\n3.Exit\n";

//menu for calculation

bool loop=true;

//loop continues until valid input is given

while(loop)

{           

   cout<<"Enter your choice: ";

   //choice input

   int choice;

   cin>>choice;

   //switch case

   switch(choice)

   {

              case 1://addition

                             cout<<"Addition: "<<(a+b)<<endl;

                             loop=false;

                             break;

              case 2://subtraction

                             cout<<"Subtraction: "<<(a-b)<<endl;

                             loop=false;

                             break;

              case 3://Exit

                             return 0;

              default://run if other than above input is given

                             cout<<"wrong input Try again\n";

                             break;

              }

}

return 0;

}

Output:-