3.5 code practice input a grade number (9-12) and print freshman, sophomore, junior, senior. if it is not in [9-12] , print not in highschool.

#include <iostream>

using namespace std;

int main()

{

   int grade_number=-2;

   while(grade_number!=0){

      cout<<"Enter grade number";

   cin >> grade_number;

   switch (grade_number)

   {

   case 9:

       cout<<"Freshman"<<endl;

       break;

   case 10:

       cout<<"Sphomore"<<endl;

       break;

   case 11:

       cout<<"Junior"<<endl;

       break;

   case 12:

       cout<<"Senior"<<endl;

       break;

   default : //Optional

       cout<<"Not in highschool"<<endl;

   }

   }

   return 0;

}

Explanation:

Take input from user for grade number and run it through a switch statement.

Switch statement takes a variable and perform specific task for predefined different values of that variable.

grade= int(input('What Grade are you in?'))

if(grade == 9):

    print('Freshman')

elif(grade ==10):

    print('Sophomore')

elif(grade == 11):

    print('Junior')

elif(grade == 12):

    print('Senior')

else:

    print('Not in High School')