@@ -0,0 +1,171 @@
+public boolean array123(int%5B%5D nums) %7B%0A  for (int i=0; i%3Cnums.length-2; i++) %7B%0A    if (nums%5Bi%5D == 1 && nums%5Bi+1%5D == 2 && nums%5Bi+2%5D == 3) return true;%0A  %7D%0A  return false;%0A%7D%0A

Create array123.java