Posted on 2009-06-11 11:10
析木 阅读(226)
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JAVA
class weijySort 
{
3 public static void main (String[] args) {
4 int gohome[] = new int[]{12,7,54,21,1,4,65,76,34,9,3,6};
5 System.out.println("插入排序算法");
6// InsertionSort(gohome);
7 System.out.println("-------------------------------------------");
8 System.out.println("选择排序算法");
9// SelectSort(gohome);
10 System.out.println("-------------------------------------------");
11 System.out.println("冒泡排序算法");
12// BubbleSort(gohome);
13 System.out.println("-------------------------------------------");
14 gohome =QuickSort(gohome);
15
16 for (int t=0; t<gohome.length;t++)
17 {
18 System.out.print(gohome[t]+"--");
19 }
20 }
21
22 //插入排序算法
23 public static void InsertionSort(int[] goal)
24 {
25 for (int i = 1; i<goal.length; i++)
26 { int now = i;
27 int frank = goal[i];
28 while (now>0 && goal[now-1] <= frank)
29 {
30 goal[now]=goal[now-1];
31 now--;
32 }
33 goal[now]=frank;
34
35
36 }
37
38
39 for (int t=0; t<goal.length;t++)
40 {
41 System.out.print(goal[t]+"--");
42 }
43 }
44
45 //选择排序算法
46 public static void SelectSort(int[] goal)
47 {
48 int max;
49 int stmp;
50 for (int i = 0; i<goal.length-1; i++)
51 {
52 max=i;
53 for (int j = i+1; j<goal.length; j++)
54 if(goal[j]>goal[max])
55 max=j;
56
57 stmp = goal[i];
58 goal[i]=goal[max];
59 goal[max]=stmp;
60
61 }
62 for (int t=0; t<goal.length;t++)
63 {
64 System.out.print(goal[t]+"--");
65 }
66
67
68 }
69
70 //冒泡排序算法
71 public static void BubbleSort(int[] goal)
72 { int stmp;
73 for (int i = 1; i< goal.length; i++)
74 {
75 for(int j=0; j<i;j++)
76 {
77 if(goal[i]>goal[j])
78 {
79 stmp=goal[i];
80 goal[i]=goal[j];
81 goal[j]=stmp;
82 }
83 }
84
85 }
86 for (int t=0; t<goal.length;t++)
87 {
88 System.out.print(goal[t]+"--");
89 }
90 }
91
92 //快速排序算法
93 public static int[] QuickSort(int[] number) {
94 QuickSort(number, 0, number.length-1);
95 return number ;
96 }
97 private static void QuickSort(int[] number,int left, int right) {
98 int stmp;
99 if(left < right) {
100 System.out.println(left+" | "+right+" | "+(left+right)/2);
101 int s = number[(left+right)/2];
102 int i = left - 1;
103 int j = right + 1;
104 while(true) {
105 // 向右找
106 while(number[++i] > s) ;
107 // 向左找
108 while(number[--j] < s) ;
109 if(i >= j)
110 break;
111 stmp = number[i];
112 number[i] = number[j];
113 number[j] = stmp;
114 }
115 QuickSort(number, left, i-1); // 对左边进行递回
116 QuickSort(number, j+1, right); // 对右边进行递回
117 }
118 }
119 }
