String split with Regex returns no value

Question

I am new to Regex and very confused why there get no groups returned by the split method in the following operation:

String toSplit ="FN:Your Name";
String splitted [] = toSplit.split("(FN:)([A-Za-z]*) ([A-Za-z]*)");
System.out.println("Length: "+splitted.length);

Output: Length: 0

Question: What is the reason and how can I get Your and Name returned in the array?

Answer 1

You don't want to split but to use a Matcher :

String toSplit ="FN:Your Name";
Pattern pattern = Pattern.compile("(?:FN:)([A-Za-z]*) ([A-Za-z]*)");
Matcher matcher = pattern.matcher(toSplit);
if (matcher.find()) {
    String[] splitted = new String[]{
        matcher.group(1),
        matcher.group(2)
    };
    System.out.println("splitted: " + Arrays.toString(splitted));
}

Result:

splitted: [Your, Name]

Small note: I've made the first group non capturing with ?: because you don't need to get it in the result.