private static List<String> splitByLength(String s, int length) { List<String> list = new ArrayList<>(); if (!StringUtils.isEmpty(s)) { Matcher m = Pattern.compile("[\\s\\S]{1," + length + "}").matcher(s); while (m.find()) { list.add(m.group()); } } retur</string></string>…

\r\n?// Javaでの実装例 "あいうえお\r\nかきくけこ\rさしすせそ\n".replaceAll("\r\n?", "\n"); //=> "あいうえお\nかきくけこ\nさしすせそ\n"

List<List<String>> list = new ArrayList<>(); list.add(Arrays.asList("A", "B", "C")); list.add(Arrays.asList("a", "b", "c")); list.add(Arrays.asList("あ", "い", "う")); // listの値: [["A", "B", "C"], ["a", "b", "c"], ["あ", "い", "う"]] list.stream() .f</list<string>…