@@ -0,0 +1,303 @@
+// http://codingbat.com/prob/p139677%0A%0Apublic int matchUp(String%5B%5D a, String%5B%5D b) %7B%0A  int validStringCount = 0;%0A  %0A  for (int i = 0; i %3C a.length; ++i) %7B%0A    if (!a%5Bi%5D.isEmpty() && !b%5Bi%5D.isEmpty() && a%5Bi%5D.charAt(0) == b%5Bi%5D.charAt(0)) %7B%0A      validStringCount++;%0A    %7D%0A  %7D%0A  %0A  return validStringCount;%0A%7D%0A

Create matchUp.java