@@ -0,0 +1,157 @@
+public boolean sum28(int%5B%5D nums) %7B%0A  int twoCount = 0;%0A  for (int i=0; i%3Cnums.length; i++) %7B%0A    if (nums%5Bi%5D == 2) twoCount++;%0A  %7D%0A  return twoCount == 4;%0A%7D%0A

Create sum28.java