1. import java.time.LocalDateTime;
  2. import java.time.ZoneId;
  3. import java.time.format.DateTimeFormatter;
  4. import java.util.HashMap;
  5. import java.util.Map;
  7. public class TimeValueChecker {
  9. public static void main(String[] args) {
  10. // Example usage
  11. String inputDateTimeString = "2024-01-01T10:30:00Z"; //Example input
  12. LocalDateTime dateTime = parseDateTime(inputDateTimeString);
  14. if (dateTime == null) {
  15. System.err.println("Error: Invalid date/time format. Using default value.");
  16. dateTime = getDefaultDateTime();
  17. }
  20. System.out.println("Parsed Date and Time: " + dateTime);
  21. }
  24. public static LocalDateTime parseDateTime(String dateTimeString) {
  25. DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ssX"); // ISO 8601 format
  26. try {
  27. return LocalDateTime.parse(dateTimeString, formatter);
  28. } catch (Exception e) {
  29. System.err.println("Error parsing date/time: " + e.getMessage() + ". Using default value.");
  30. return null; // Indicate parsing failure
  31. }
  32. }
  35. public static LocalDateTime getDefaultDateTime() {
  36. // Default date and time (e.g., current date and time)
  37. return LocalDateTime.now(); //Use current time as default. Can be changed to a fixed default.
  38. }
  41. public static void checkTimeValue(String timeValueString) {
  42. LocalDateTime dateTime = parseDateTime(timeValueString);
  44. if (dateTime == null) {
  45. System.err.println("Error: Invalid time value '" + timeValueString + "'. Using default value.");
  46. dateTime = getDefaultDateTime();
  47. }
  49. //Further checks can be added here, e.g., validation for specific time ranges.
  50. if(dateTime.isBefore(LocalDateTime.now().minusDays(7))) {
  51. System.err.println("Warning: Time value is more than 7 days in the past. Using default value.");
  52. dateTime = getDefaultDateTime();
  53. }
  54. System.out.println("Checked Time Value: " + dateTime);
  55. }
  56. }

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