Modify another exercise to test testing multiple

exercises/wordy/src/example/java/WordProblemSolver.java

 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
-final class WordProblemSolver {
+final class WordProblemSolver { 
 
     private static final String INTEGER_REGEX_STRING = "(-?\\d+)";