ringa_lee2017-04-18 10:48:11
英文原文(169頁)是:
It's important that all of the methods in Cleanser are public.
至於第一個問題,原文(168頁)是:
First, in the Cleanser append() method, Strings are concatenated to s using the += operator,, Javaich is one of the aing the += operator, overloaded" to work with Strings.