Check file for email addresses and extract them

Using Java, I need to figure out a way to check if a file has any email addresses in it and then display the email addresses. Doe开发者_如何转开发s any one know how to do this?

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Regular Expressions FTW

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The code that'll do this is outlined here:

Pattern pattern = 
Pattern.compile("the regex string");

Matcher matcher = 
pattern.matcher("the file");

boolean found = false;
while (matcher.find()) {
    System.out.println(match.group());
    found = true;
}

Loop as desired, the way I have it now is to stop when it finds the first address.

The regular expression itself can be found here.

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