1. import java.util.ArrayList;
  2. import java.util.List;
  3. import java.util.Scanner;
  5. public class BatchProcessor {
  7. public static void main(String[] args) {
  8. Scanner scanner = new Scanner(System.in);
  9. List<String[]> data = new ArrayList<>();
  11. while (true) {
  12. String line = scanner.nextLine();
  13. if (line.trim().isEmpty()) {
  14. break; // Exit on empty line
  15. }
  17. String[] values = line.split(","); // Split by comma
  18. if (values.length < 2) {
  19. System.out.println("Invalid input format. Skipping line: " + line);
  20. continue; // Skip invalid lines
  21. }
  23. data.add(values);
  24. }
  26. // Manual override section
  27. System.out.println("\nManual Override:");
  28. System.out.println("Enter row index (0-based) to override values, or 'done':");
  29. String overrideInput = scanner.nextLine();
  31. if ("done".equalsIgnoreCase(overrideInput)) {
  32. System.out.println("Processing data...");
  33. processData(data);
  34. } else {
  35. try {
  36. int index = Integer.parseInt(overrideInput);
  37. if (index >= 0 && index < data.size()) {
  38. System.out.println("Enter new values (comma-separated):");
  39. String[] newValues = scanner.nextLine().split(",");
  40. if (newValues.length == data.get(index).length) {
  41. data.set(index, newValues);
  42. System.out.println("Row " + index + " updated.");
  43. } else {
  44. System.out.println("Invalid number of values for override.");
  45. }
  46. } else {
  47. System.out.println("Invalid row index.");
  48. }
  49. } catch (NumberFormatException e) {
  50. System.out.println("Invalid input format. Please enter a number or 'done'.");
  51. }
  52. }
  54. scanner.close();
  55. }
  57. private static void processData(List<String[]> data) {
  58. for (String[] row : data) {
  59. // Perform processing on each row
  60. System.out.println("Processing: " + String.join(", ", row));
  61. }
  62. }
  63. }

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