1. import java.util.HashMap;
  2. import java.util.Map;
  4. public class UtilityDataFormatter {
  6. /**
  7. * Formats user data into a string based on provided flags.
  8. * @param userData A map containing user data.
  9. * @param flags A map containing optional flags.
  10. * @return Formatted string representation of user data.
  11. */
  12. public static String formatData(Map<String, String> userData, Map<String, Boolean> flags) {
  13. StringBuilder output = new StringBuilder();
  15. // Basic user information
  16. output.append("User ID: ").append(userData.get("userId")).append("\n");
  17. output.append("Name: ").append(userData.get("name")).append("\n");
  18. output.append("Account Type: ").append(userData.get("accountType")).append("\n");
  20. //Conditional formatting based on flags
  21. if (flags.containsKey("showAddress") && flags.get("showAddress")) {
  22. output.append("Address: ").append(userData.get("address")).append("\n");
  23. }
  25. if (flags.containsKey("showContact") && flags.get("showContact")) {
  26. output.append("Contact Number: ").append(userData.get("contactNumber")).append("\n");
  27. output.append("Email: ").append(userData.get("email")).append("\n");
  28. }
  30. if (flags.containsKey("showUsage")) {
  31. output.append("Current Usage: ").append(userData.get("currentUsage")).append("\n");
  32. output.append("Previous Usage: ").append(userData.get("previousUsage")).append("\n");
  33. }
  35. return output.toString();
  36. }
  38. public static void main(String[] args) {
  39. // Example Usage
  40. Map<String, String> user = new HashMap<>();
  41. user.put("userId", "12345");
  42. user.put("name", "John Doe");
  43. user.put("accountType", "Residential");
  44. user.put("address", "123 Main St");
  45. user.put("contactNumber", "555-123-4567");
  46. user.put("email", "john.doe@example.com");
  47. user.put("currentUsage", "100 kWh");
  48. user.put("previousUsage", "80 kWh");
  51. Map<String, Boolean> flags = new HashMap<>();
  52. flags.put("showAddress", true);
  53. flags.put("showContact", true);
  54. flags.put("showUsage", true);
  56. String formattedData = formatData(user, flags);
  57. System.out.println(formattedData);
  59. //Example with no flags
  60. Map<String, Boolean> noFlags = new HashMap<>();
  61. formattedData = formatData(user, noFlags);
  62. System.out.println(formattedData);
  63. }
  64. }

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