Blank Spaces Remover

Java program to remove extra spaces from a String

public class BlankRemover {
     
    private BlankRemover () {}

    /* remove leading whitespace */
    public static String ltrim(String source) {
        return source.replaceAll("^\\s+", "");
    }

    /* remove trailing whitespace */
    public static String rtrim(String source) {
        return source.replaceAll("\\s+$", "");
    }

    /* replace multiple whitespaces between words with single blank */
    public static String itrim(String source) {
        return source.replaceAll("\\b\\s{2,}\\b", " ");
    }

    /* remove all superfluous whitespaces in source string */
    public static String trim(String source) {
        return itrim(ltrim(rtrim(source)));
    }

    public static String lrtrim(String source) {
        return ltrim(rtrim(source));
    }
}