switch

char ch;
cin >> ch;
switch (ch) {
    case 'l':
       cout << "List of Records";
       printListOfRecords();
       break;
    case 'h':
    case '?':
       printHelpScreen();
       break;
    default:
       cout << "Invalid input!";
}

• Switch variables must be numeric or char, not strings.
• As you can have more than one statement in each case, you need a break after each case, otherwise the program execution ``falls through'' to the next case (in the example, if ``h'' is pressed, the same code gets executed as for ``?'').
• The default gets executed whenever none of the cases applies.