Java 如何删除字符串之间的空格
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How to remove spaces in between the String
提问by Lav patel
I have below String
我有以下字符串
string = "Book Your Domain And Get\n \n\n \n \n \n Online Today."
string = str.replace("\s","").trim();
which returning
哪个返回
str = "Book Your Domain And Get Online Today."
But what is want is
但想要的是
str = "Book Your Domain And Get Online Today."
I have tried Many Regular Expression and also googled but got no luck. and did't find related question, Please Help, Many Thanks in Advance
我尝试了许多正则表达式，也用谷歌搜索但没有运气。并没有找到相关问题，请帮忙，非常感谢提前
采纳答案by Rafi Kamal
Use \\s+instead of \\sas there are two or more consecutive whitespaces in your input.
使用\\s+而不是\\s因为您的输入中有两个或多个连续的空格。
string = str.replaceAll("\s+"," ")
回答by Rohit Jain
You can use replaceAllwhich takes a regex as parameter. And it seems like you want to replace multiple spaces with a single space. You can do it like this:
您可以使用replaceAllwhich 将正则表达式作为参数。似乎您想用一个空格替换多个空格。你可以这样做：
string = str.replaceAll("\s{2,}"," ");
It will replace 2 or more consecutive whitespaces with a single whitespace.
它将用一个空格替换 2 个或多个连续的空格。
回答by Rohit Jain
First get rid of multiple spaces:
首先去掉多个空格：
String after = before.trim().replaceAll(" +", " ");
回答by ?mer
If you want to just remove the white space between 2 words or characters and not at the end of string then here is the regex that i have used,
如果您只想删除 2 个单词或字符之间的空格而不是字符串末尾的空格，那么这里是我使用的正则表达式，
String s = " N OR 15 2 ";
Pattern pattern = Pattern.compile("[a-zA-Z0-9]\s+[a-zA-Z0-9]", Pattern.CASE_INSENSITIVE);
Matcher m = pattern.matcher(s);
while(m.find()){
String replacestr = "";
int i = m.start();
while(i<m.end()){
replacestr = replacestr + s.charAt(i);
i++;
}
m = pattern.matcher(s);
}
System.out.println(s);
it will only remove the space between characters or words not spaces at the ends and the output is
它只会删除字符或单词之间的空格而不是末尾的空格，输出为
NOR152
NOR152
回答by shahchiragh
Eg. to remove space between words in a string:
例如。删除字符串中单词之间的空格：
String example = "Interactive Resource";
String example = "Interactive Resource";
System.out.println("Without space string: "+ example.replaceAll("\\s",""));
System.out.println("Without space string: "+ example.replaceAll("\\s",""));
Output:
Without space string: InteractiveResource
输出：
Without space string: InteractiveResource
