Question

In the main(), below, write a program that uses a switch-statement to choose between three numbers. The number, choice, should be prompted for and each choice should print out a unique statement. Also, the prompt should continue indefinitely (i.e. keep prompting until the user force-quits the program), and there should be a general catch-all if the user enters other than the three possible choices.

#include <iostream>

#include <iomanip>

using namespace std;

int main()

{

<your answer goes here>

return 0;

}

Answer 1

Have a look at the below code. I have put comments wherever required for better understanding.

#include <iostream>
#include <iomanip>
using namespace std;



int main() {

  cout << "Choose any number among 4,7 & 10"<<endl;
  // intialize the variable to store user input...
  int a; 
 // take user input
  cin >> a;
  

  try {
     // put conditional statements for 3 numbers
      if(a==4) cout << "4 is an even number"<<endl;
      else if(a==7) cout << "7 is an odd number"<<endl;
      else if(a==10) cout << "10 is a multiple of 5"<<endl;
      // for any other number throw Exception
      else throw 's';

   } catch(...) {
     // give a valid message to the user
      cout << "Caught Exception!\n";
      cout<< "Print enter a valid number"<<endl;
   }
   
  return 0;
  
}

Happy Learning!