2. The Welsh alphabet consists of the following letters: a, b, c, ch, d, dd, e, f, ff, g, ng, h, i, j. I, I, m, n, o, p, ph,r,rh,s, t, th, u, w,y Note that there are eight digraphs (two-symbol combinations that count as single letters) in this alphabet: ch, dd, ff, ng, Il, ph, rh, and th. Thus, for example, the town name Llanelli is considered to have only six letters in Welsh (each Il counts as a single letter), whereas it would have eight letters in English. Along these lines, "rhyl has 3 letters, and cymru" has 5 letters. In potentially ambiguous cases like IlI, assume that digraphs precede any single Stony Brook University CSE 114: Computer ScienceI Fall 2017 followed by a single l, for a total letter letters (so would be interpreted as the digraph count of 2) Define a Java method welshLetters() that takes a lowercase String as its only argument (you may assume that the String only contains the letters listed in the Welsh alphabet above, so it won't contain any q's or z's, for instance). Your method should return an ArrayList of Strings, where each String is the next Welsh letter from the argument. ArrayList welshLetters (String word) For example, welshLetters ("1lanelli") would return an ArrayList with the contents (in order): Write a small Java program that demonstrates that your method works correctly. It should prompt the user to enter a Welsh word and display the total number of Welsh letters (and what they are; remember that you can simply pass an ArrayList to System.out.println() for this purpose). For example: Please enter a Welsh word: heddiw Welsh letters: 5/"h* "e", "dd, T, "w]