使用Spring ZoneId,代碼: private static Map<String, String> getAllZoneIds() {
final List<String> zoneList = new ArrayList<>(ZoneId.getAvailableZoneIds());
final Map<String, String> zones = new Ha
我嘗試在我的迭代器中實現hasNext()方法。 public boolean hasNext() {
filename = this.fileContent.getFileName();
int charLineSize = 0;
Scanner in = null;
ArrayList<Character> charList = new Arra