+ public Nickname getNickname(String nicknameWithOptionalPrefix) {
+ if (isNickPrefixed(nicknameWithOptionalPrefix)) {
+ return new Nickname(nicknameWithOptionalPrefix.substring(1),
+ nicknameWithOptionalPrefix.substring(0, 1));
+ }
+ return new Nickname(nicknameWithOptionalPrefix, "");
+ }
+