How Can I Correctly Split a Java String by Spaces, Including Multiple Spaces and Other Whitespace Characters?

Splitting a String by Spaces in Java

Splitting a string by spaces is a common task in programming. The Java String class provides a split() method that can be used to split a string into an array of substrings.

However, sometimes you may encounter issues when using the split() method. For example, the following code does not seem to work:

String str = "Hello I'm your String";
String[] splited = str.split(" ");

This code will not split the string because the default delimiter used by the split() method is a single space character. If your string contains spaces that are separated by other characters, such as punctuation marks, the split() method will not split the string correctly.

To solve this issue, you can use the following regular expression:

str = "Hello I'm your String";
String[] splited = str.split("\s+");

This regular expression will match any number of consecutive whitespace characters, including spaces, tabs, and newlines. This will cause the split() method to split the string into tokens based on any sequence of whitespace characters.

Using this regular expression, you can successfully split a string by spaces, even if the spaces are separated by other characters.

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