title: Pattern Matching Java Regex - "One-or-more" operator
body: <p>How is the "one-or-more" operator used in regex for Java? For example, I want to match this:</p>
  
  <p>( (a) (b) (c) ) - matches</p>
  
  <p>( (a) ) - matches</p>
  
  <p>where a,b,c are any characters or digits</p>
  
  <p>The basic description of this expression is sets of parentheses within a set of parentheses that contains all of the sets separated by one white space</p>