1. import java.time.LocalTime;
  2. import java.time.format.DateTimeFormatter;
  3. import java.time.format.DateTimeParseException;
  5. public class TimeMapper {
  7. /**
  8. * Maps a string time value to a LocalTime object.
  9. * @param timeString The string representation of the time (e.g., "14:30").
  10. * @param inputFormat The format of the input time string.
  11. * @param outputFormat The desired format of the output LocalTime.
  12. * @return A LocalTime object, or null if parsing fails.
  13. */
  14. public static LocalTime mapTime(String timeString, DateTimeFormatter inputFormat, DateTimeFormatter outputFormat) {
  15. try {
  16. // Parse the input time string
  17. LocalTime parsedTime = LocalTime.parse(timeString, inputFormat);
  19. // Format the LocalTime object to the desired output format
  20. return LocalTime.parse(outputFormat.format(parsedTime), outputFormat); //Re-parse to ensure correct formatting
  21. } catch (DateTimeParseException e) {
  22. // Handle parsing errors (e.g., invalid time string)
  23. return null;
  24. }
  25. }
  27. public static void main(String[] args) {
  28. // Example usage
  29. String timeString = "14:30";
  30. DateTimeFormatter inputFormat = DateTimeFormatter.ofPattern("HH:mm");
  31. DateTimeFormatter outputFormat = DateTimeFormatter.ofPattern("hh:mm a");
  33. LocalTime mappedTime = mapTime(timeString, inputFormat, outputFormat);
  35. if (mappedTime != null) {
  36. System.out.println("Original Time: " + timeString);
  37. System.out.println("Mapped Time: " + mappedTime);
  38. } else {
  39. System.out.println("Invalid time string format.");
  40. }
  41. }
  42. }

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