Phone Number List

But lets do more than that. Let us make this program an (almost) practical application. Our application will search for a name and will then print out that person's phone number. The list of names and phone numbers is implemented as a list of PhoneEntry objects:

class PhoneEntry
{
  String name;    // name of a person
  String phone;   // their phone number

  // constructor
  PhoneEntry( String n, String p )
  {
    name = n; phone = p;
  }
}

The phone number is a String (not an int) because no arithmetic is done with it, and because it may contain colons and dashes. The main() method declares this array:

PhoneEntry[] phoneBook = new PhoneEntry[ 5 ] ;