getAddressBookComplex.java

/**
    sample code that gets an address book represented by a map
    usage:
        map = getAddressBookComplex();
        phoneNumber = map.get("Ava"); // (415)-730-xxxx
*/
Map<String, String> getAddressBookComplex() {
  Map<String, String> map = new HashMap<>();
  map.put("Ava", "(415)-730-xxxx");
  map.put("Bob", "(512)-349-xxxx");
  map.put("Carl", "(917)-123-xxxx");
  return map;
}