Stripping Leading and Trailing Spaces from a Java String: Simplified

When working with strings in Java, there may be instances where you need to remove any unwanted whitespace, particularly leading or trailing spaces. While String#replace(" ") would replace all white spaces, a more specific solution is required for this task.

Introducing the trim() Method

The Java String class provides the convenient trim() method, which effectively removes all leading and trailing whitespace characters from a string.

Demonstration:

String myString = "  keep this  ";
String strippedString = myString.trim();
System.out.println("no spaces:"   strippedString);

Output:

no spaces:keep this

As you can see, the trim() method successfully removes the leading and trailing spaces, leaving only the intended string content. This method handles multiple occurrences of white space effectively, ensuring a clean and whitespace-trimmed result.

Learn more about the trim() method and its functionality by exploring the Java String API documentation.