1. package org.idcn.jse;
2.
3. public class SortAll {
4.
5. /**
6. * 冒泡排序,选择排序,插入排序,希尔(Shell)排序 Java的实现
9. */
10. public static void main(String[] args) {
11. int[] i = { 1, 5, 6, 12, 4, 9, 3, 23, 39, 403, 596, 87 };
12. System.out.println("----冒泡排序的结果:");
13. maoPao(i);
14. System.out.println();
15. System.out.println("----选择排序的结果:");
16. xuanZe(i);
17. System.out.println();
18. System.out.println("----插入排序的结果:");
19. chaRu(i);
20. System.out.println();
21. System.out.println("----希尔(Shell)排序的结果:");
22. shell(i);
23. }
24.
25. // 冒泡排序
26. public static void maoPao(int[] x) {
27. for (int i = 0; i < x.length; i++) {
28. for (int j = i + 1; j < x.length; j++) {
29. if (x[i] > x[j]) {
30. int temp = x[i];
31. x[i] = x[j];
32. x[j] = temp;
33. }
34. }
35. }
36. for (int i : x) {
37. System.out.print(i + " ");
38. }
39. }
40.
41. // 选择排序
42. public static void xuanZe(int[] x) {
43. for (int i = 0; i < x.length; i++) {
44. int lowerIndex = i;
45. // 找出最小的一个索引
46. for (int j = i + 1; j < x.length; j++) {
47. if (x[j] < x[lowerIndex]) {
48. lowerIndex = j;
49. }
50. }
51. // 交换
52. int temp = x[i];
53. x[i] = x[lowerIndex];
54. x[lowerIndex] = temp;
55. }
56. for (int i : x) {
57. System.out.print(i + " ");
58. }
59. }
60.
61. // 插入排序
62. public static void chaRu(int[] x) {
63. for (int i = 1; i < x.length; i++) {// i从一开始,因为第一个数已经是排好序的啦
64. for (int j = i; j > 0; j--) {
65. if (x[j] < x[j - 1]) {
66. int temp = x[j];
67. x[j] = x[j - 1];
68. x[j - 1] = temp;
69. }
70. }
71. }
72. for (int i : x) {
73. System.out.print(i + " ");
74. }
75. }
76.
77. // 希尔排序
78. public static void shell(int[] x) {
79. // 分组
80. for (int increment = x.length / 2; increment > 0; increment /= 2) {
81. // 每个组内排序
82. for (int i = increment; i < x.length; i++) {
83. int temp = x[i];
84. int j = 0;
85. for (j = i; j >= increment; j -= increment) {
86. if (temp < x[j - increment]) {
87. x[j] = x[j - increment];
88. } else {
89. break;
90. }
91. }
92. x[j] = temp;
93. }
94. }
95.
96. for (int i : x) {
97. System.out.print(i + " ");
98. }
99. }
100. }