Question

I am unsure as to why I cannot solve my Computer Science question I was just wondering if someone could show me exactly what they would do the code is in C++:

write a program that display the following manual for user to chose among calculations

Please select one of the following:

1. addition
2. subtraction
3. multiplication
4. division
5. exit

The program will then read in the user entry.

when the user chose "1", it will ask the user "Please enter two numbers separated by space:", read these two numbers into variables, add them and display the sum; when the user chose "2", it will ask the user "Please enter two numbers separated by space:", read these two numbers into variables, subtract the 2nd number from the first one and display the result; when the user chose "3", it will ask the user "Please enter two numbers separated by space:", read these two numbers into variables, multiply them and display the product; when the user chose "4", it will ask the user "Please enter two numbers separated by space:", read these two numbers into variables, divide the first number by the 2nd number, and display the quotient; when the user chose "5", exit the program; when what the user entered is not within the range of 1~5, display "This is Not a valid choice."

Answer 1

please go through screenshots for better understanding. Any doubts comment below.Thank you.

C++ CODE:

#include<iostream>
#include<stdlib.h>
using namespace std;
int main()
{
   int n, a, b; //intitializing varianles.
   float div;
   cout<<"1.addition\n2.subtraction\n3.multiplication\n4.division\n5.exit\n"; // Display user to enter option
   cin>>n; // Taking option from user
   switch(n)
   {
   case 1:
   {
       cout<<"Enter two numbers sepreated by space:" ; // Ask user to enter space seprated numbers
       cin>>a; // Taking first number
       cin>>b; // Taking second number
       cout<<"sum of two numbers:" <<(a+b) ; // printing addition of two numbers
       break;
   }
   case 2:
   {
       cout<<" enter two number sepreated by space:" ; // Ask user to enter space seprated numbers
       cin>>a; //Taking first number
       cin>>b;// Taking second number
       cout<<"Subtraction of two numbers:" <<(a-b) ;// printing subtraction of two numbers
       break;
   }

   case 3:
   {
       cout<<" enter two number sepreated by space:" ; // Ask user to enter space seprated numbers
       cin>>a; //Taking first number
       cin>>b;// Taking second number
       cout<<"multiplication of two numbers:"<<(a*b) ; //printing multiplication of two numbers
       break;
   }

   case 4:
   {
       cout<<" enter two number sepreated by space:" ; // Ask user to enter space seprated numbers
       cin>>a;//Taking first number
       cin>>b;// Taking second number
       div=a/b; // calculating division
       cout<<"division of two numbers:"<<div ; //printing division of two numbers
       break;
   }
   case 5:
   {
       exit(0); // exit from program
       break;
   }
   default:
   {
       cout<<"this is not a valid choice" ;
       break;
   }

   }
   return 0;
}

We were unable to transcribe this image

cin>>b; // Taking second number cout<<"multiplication of two numbers:"<< (a*b); //printing multiplication of two numbers break; case 4: cout<<" enter two number sepreated by space:"; // Ask user to enter space seprated numbers cin>>a; //Taking first number cin>>b;// Taking second number div=a/b; // calculating division cout<<"division of two numbers:"<<div ; //printing division of two numbers break; case 5: exit(0); // exit from program break; default: cout<<"this is not a valid choice" ; break; return 0;

-ox C:\Program Files (x86)\Dev-Cpp ConsolePauser.exe 1. addition 2. subtraction 3.multiplication 4.division 5.exit Enter two numbers sepreated by space:9 5 sum of two numbers:14 Process exited normally. Press any key to continue ...

- O X C:\Program Files (x86)\Dev-Cpp ConsolePauser.exe 1. addition 2. subtraction 3.multiplication 4.division 5.exit enter two number sepreated by space:9 5 Subtraction of two numbers:4 Process exited normally. Press any key to continue ...

- O X C:\Program Files (x86)\Dev-Cpp ConsolePauser.exe 1. addition 2. subtraction 3.multiplication 4.division 5.exit enter two number sepreated by space:9 5 multiplication of two numbers:45 Process exited normally. Press any key to continue ...

We were unable to transcribe this image

We were unable to transcribe this image