5 String Processing

5.1 Search, parse and build strings (including Scanner, StringTokenizer, StringBuilder, String and Formatter)
5.2 Search, parse, and replace strings by using regular expressions, using expression patterns for matching limited to: . (dot), * (star), + (plus), ?, \d, \D, \s, \S, \w, \W, \b. \B, [], ().
5.3 Format strings using the formatting parameters: %b, %c, %d, %f, and %s in format strings.