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

Regular Expressions are not needed here. Try this:

if((string1.toUpperCase().indexOf("ERROR",0) >= 0 ||  
  string1.toUpperCase().indexOf("WARNING",0) >= 0 ) &&
  string1.toUpperCase().indexOf("PARSING",0) >= 0 )

This also takes care of the case-insensitive criteria