package string;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import java.util.stream.Stream;

public class Question39 {

public static void main(String[] args) {

String word = "ABCD";

Stream.of(word.split("")).forEach(letter-> System.out.printf(getNextAlphabet(letter)));

}

private static String getNextAlphabet(String letter) {

int index = getAlphabetsList().indexOf(letter);

return getAlphabetsList().get(index + 1);

}

private static List<String> getAlphabetsList() {

return List.of("A","B","C","D","E","F","G","H","I","J",

"K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z");

}

}