使用 .contains 方法忽略大小写的选项? [英] Option to ignore case with .contains method?

问题描述

是否可以使用 .contains() 方法忽略大小写?

Is there an option to ignore case with .contains() method?

我有一个 DVD 对象的 ArrayList.每个 DVD 对象都有几个元素，其中之一是标题.我有一种搜索特定标题的方法.它有效，但我希望它不区分大小写.

I have an ArrayList of DVD object. Each DVD object has a few elements, one of them is a title. And I have a method that searches for a specific title. It works, but I'd like it to be case insensitive.

推荐答案

我猜你的意思是在搜索字符串时忽略大小写?

I'm guessing you mean ignoring case when searching in a string?

我不知道，但您可以尝试将要搜索的字符串转换为小写或大写，然后进行搜索.

I don't know any, but you could try to convert the string to search into either to lower or to upper case, then search.

// s is the String to search into, and seq the sequence you are searching for.
bool doesContain = s.toLowerCase().contains(seq);

正如 Ryan Schipper 所建议的，您也可以(并且可能会更好)执行 seq.toLowerCase()，具体取决于您的情况.

As Ryan Schipper suggested, you can also (and probably would be better off) do seq.toLowerCase(), depending on your situation.

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