Java: Simple regex question, complete words

Question

Hi,

i need a Regex to do this ( catch only real words ):

Inputstring:

hello,[email protected]

Process:

 String theMagicRegEx = "?????";
 String[] arrayvar = asdf.split(theMagicRegEx);

Output (arrayvar) should be this:

hello
sdfsdf
yahoo
email
com

Question: What is the value of theMagicRegEx?

Thanks a lot

Answer 1

Try \W+ (non-word characters)

Answer 2

So you want to split the string on non-word characters? There you have the \W for. Also see the java.util.regex.Pattern API for an overview of regex operators.

String[] arrayvar = asdf.split("\\W+");

Answer 3

Try str.split("[\\W\\d_]+");.

This will leave only word characters, no numbers or underscore.