code: public void displayResults(boolean showMismatches,PrintStream out) throws IOException 
      {
          PrintfFormat fmt = new PrintfFormat("%s %3d %7.2f | %30s | %30s\n");
          for (int i=0; i<pairs.length; i++) {
              if (pairs[i]!=null) {
                  String label = pairs[i].isCorrect() ? "+" : "-";
                  String aText = (pairs[i].getA()==null) ? "***" : pairs[i].getA().unwrap();
                  String bText = (pairs[i].getB()==null) ? "***" : pairs[i].getB().unwrap();
                  if (showMismatches || "+".equals(label)) {
                      out.print( fmt.sprintf( new Object[] { 
                                  label,
                                  new Integer(i+1),
                                  new Double(pairs[i].getDistance()),
                                  aText,
                                  bText
                              }));
                  }
              }
          }
      }
docs: Show results in a simple format.