1. import java.util.ArrayList;
  2. import java.util.List;
  3. import java.util.Scanner;
  5. public class CookiePaginator {
  7. private static final int PAGE_SIZE = 10;
  8. private static List<String> cookies = new ArrayList<>();
  10. public static void main(String[] args) {
  11. // Sample cookie data (replace with your actual data source)
  12. cookies.add("cookie1");
  13. cookies.add("cookie2");
  14. cookies.add("cookie3");
  15. cookies.add("cookie4");
  16. cookies.add("cookie5");
  17. cookies.add("cookie6");
  18. cookies.add("cookie7");
  19. cookies.add("cookie8");
  20. cookies.add("cookie9");
  21. cookies.add("cookie10");
  22. cookies.add("cookie11");
  23. cookies.add("cookie12");
  24. cookies.add("cookie13");
  25. cookies.add("cookie14");
  26. cookies.add("cookie15");
  28. Scanner scanner = new Scanner(System.in);
  30. while (true) {
  31. printPage(0); // Start at the first page
  33. String input = promptUser(scanner);
  35. if ("next".equalsIgnoreCase(input)) {
  36. incrementPage();
  37. } else if ("previous".equalsIgnoreCase(input)) {
  38. decrementPage();
  39. } else if ("quit".equalsIgnoreCase(input)) {
  40. break;
  41. } else {
  42. System.out.println("Invalid input. Try 'next', 'previous', or 'quit'.");
  43. }
  44. }
  46. scanner.close();
  47. }
  49. private static void printPage(int pageNumber) {
  50. int start = pageNumber * PAGE_SIZE;
  51. int end = Math.min((pageNumber + 1) * PAGE_SIZE, cookies.size());
  53. System.out.println("--- Page " + (pageNumber + 1) + " ---");
  54. for (int i = start; i < end; i++) {
  55. System.out.println(cookies.get(i));
  56. }
  57. System.out.println("-----------------------");
  58. }
  60. private static String promptUser(Scanner scanner) {
  61. System.out.print("Enter 'next', 'previous', or 'quit': ");
  62. return scanner.nextLine();
  63. }
  65. private static void incrementPage() {
  66. // Handle reaching the last page
  67. int currentPage = getPageNumber();
  68. if (currentPage + 1 >= (cookies.size() + PAGE_SIZE - 1) / PAGE_SIZE) {
  69. System.out.println("At the last page.");
  70. return;
  71. }
  72. setPageNumber(currentPage + 1);
  73. }
  75. private static void decrementPage() {
  76. int currentPage = getPageNumber();
  77. if (currentPage - 1 <= 0) {
  78. System.out.println("At the first page.");
  79. return;
  80. }
  81. setPageNumber(currentPage - 1);
  82. }
  84. private static int getPageNumber() {
  85. return (int) Math.floor((cookies.size() + PAGE_SIZE - 1) / PAGE_SIZE - 1);
  86. }
  88. private static void setPageNumber(int pageNumber) {
  89. // Ensure page number is within valid range
  90. pageNumber = Math.max(0, Math.min(pageNumber, (cookies.size() + PAGE_SIZE - 1) / PAGE_SIZE - 1));
  91. }
  92. }

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