How to Split a String by Spaces in Java

How can I split a String by spaces in Java?

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

Splitting a String by spaces in Java can be accomplished using the `split()` method of the String class. However, if you're facing issues with your initial approach, it's essential to understand some nuances about the `split()` method and string handling.

String str = "Hello  I'm  your   string";
String[] splitArray = str.split("\s+");
for (String s : splitArray) {
    System.out.println(s);
} // Output will be each word without extra spaces.

Causes

• Using multiple consecutive spaces will result in empty strings in the output array if not properly handled.
• Using the wrong regex pattern could lead to unexpected results.

Solutions

• Make sure to use the correct regex pattern. For splitting by any whitespace, it's better to use `str.split("\s+")`, which splits the string based on one or more whitespace characters.
• Check the string content for leading or trailing spaces that may affect your output.

Mistake: Using `str.split(" ")` without considering multiple spaces.

Solution: Use `str.split("\s+")` to correctly split by one or more spaces.

Mistake: Not handling special characters or punctuation.

Solution: Consider trimming the string or handling punctuation separately.