Java：删除字符串中的句号
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Java: Remove full stop in string
提问by IndexOutOfBoundsException
I want to delete all the full stops ( . ) in a string.
我想删除字符串中的所有句号 ( . )。
Therefore I tried: inpt = inpt.replaceAll(".", "");,
but instead of deleting only the full stops, it deletes the entire content of the string.
因此我尝试了：inpt = inpt.replaceAll(".", "");，但它不是只删除句号，而是删除字符串的全部内容。
Is it possible to delete only the full stops? Thank you for your answers!
是否可以只删除句号？谢谢您的回答！
回答by assylias
replaceAlltakes a regular expressions as an argument, and .in a regex means "any character".
replaceAll将正则表达式作为参数，.在正则表达式中表示“任何字符”。
You can use replaceinstead:
您可以replace改用：
inpt = inpt.replace(".", "");
It will remove all occurences of ..
它将删除所有出现的..
回答by Bohemian
Don't use replaceAll(), use replace():
不要使用replaceAll()，使用replace()：
inpt = inpt.replace(".", "");
It is a common misconception that replace()doesn't replace all occurrences, because there's a replaceAll()method, but in fact bothreplace all occurrences. The difference between the two methods is that replaceAll()matches on a regex (fyi a dot in regex means "any character", which explains what you were experiencing) whereas replace()matches on a literal String.
这是一个普遍的误解，replace()不会替换所有出现的事件，因为有一种replaceAll()方法，但实际上两者都替换了所有出现的事件。这两种方法之间的区别在于replaceAll()匹配正则表达式（仅供参考，正则表达式中的点表示“任何字符”，这解释了您遇到的情况）而replace()匹配文字字符串。
回答by jlordo
String#replaceAll(String, String)takes a regex. The dot is a regex meta character that will match anything.
String#replaceAll(String, String)需要一个正则表达式。点是一个正则表达式元字符，可以匹配任何东西。
Use
利用
inpt = inpt.replace(".", "");
it will also replace every dot in your inpt, but treats the first parameter as a literal sequence, see JavaDoc.
它还将替换 中的每个点inpt，但将第一个参数视为文字序列，请参阅JavaDoc。
If you want to stick to regex, you have to escape the dot:
如果你想坚持使用正则表达式，你必须转义点：
inpt = inpt.replaceAll("\.", "");
回答by Festus Tamakloe
I think you have to mask the dot
我认为你必须掩盖点
inpt = inpt.replaceAll("\.", "");
回答by Joe
replaceAlluse a regex, please use the following:
replaceAll使用正则表达式，请使用以下内容：
inpt = inpt.replaceAll("\.", "")
