Regular Expression to find "lastname, firstname middlename" format

Question

I am trying to find the format "abc, def g" which is a name format "lastname, firstname middlename". I think the best suited method is regex but I do not have any idea in Regex. I tried doing some learning in regex and tried some expression also but no luck. One additional point there may be more than one spaces between the words.

This is what I tried. But this is not working.

(([A-Z][,]\s?)*([A-Z][a-z]+\s?)+([A-Z]\s?[a-z]*)*)

Need help ! Any idea how I can do this so that only the above expression match.

Thanks !

ANSWER

Finally I am using

([A-Za-z]+),\\s*([A-Za-z]+)\\s*([A-Za-z]+)

Thanks to everyone for the suggestions.

Answer 1

I would try and avoid a complicated regex, I would use String.substring() and indexOf(). That is, something like

String name = "Last, First Middle";
int comma = name.indexOf(',');
int lastSpace = name.lastIndexOf(' ');
String lastName = name.substring(0, comma);
String firstName = name.substring(comma + 2, lastSpace);
String middleName = name.substring(lastSpace + 1);
System.out.printf("first='%s' middle='%s' last='%s'%n", firstName,
            middleName, lastName);

Output is

first='First' middle='Middle' last='Last'