How to find if a Java String contains X or Y and contains Z

Question

I\'m pretty sure regular expressions are the way to go, but my head hurts whenever I try to work out the specific regular expression.

What regular expression do I ne

Answer 1

I usually use this applet to experiment with reg. ex. The expression may look like this:

if (str.matches("(?i)^.*?(WARNING|ERROR).*?parsing.*$")) {
...

But as stated in above answers it's better to not use reg. ex. here.