1
import java.util.ArrayList;
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3
public class Test01 
{
4
5
Test01() { }
6
7 /** *//**
8 * 除去字符串?dāng)?shù)組中重復(fù)次數(shù)超過整數(shù)n的數(shù)組元素.使用時請使用try{}catch(){}包含.或是使用throws聲明拋出異常
9
*/
10 public String[] execute(String[] args, int n) throws Exception {
11 //Arrays.sort(args); // 此行代碼可以不使用,使用得話會使數(shù)組工整,排序數(shù)據(jù).
12 ArrayList<String> list = new ArrayList<String>(args.length);
13 //count變量，記錄數(shù)組元素的重復(fù)次數(shù)
14 int count = 0;
15 for (int i = 0; i < args.length; i++) {
16 count = 0;
17 for (int j = 0; j < args.length; j++) {
18 if (args[i].equals(args[j])) {
19 count++;
20 }
21 }
22 //把重復(fù)次數(shù)小于等于n的數(shù)組元素放進(jìn)集合List中
23 if (count <= n) {
24 list.add(args[i]);
25 }
26
27 }
28 //新建一個數(shù)組，數(shù)組的長度為集合list的長度
29 String[] retStrs = new String[list.size()];
30 //然后把集合list的元素按照順序賦給新建的數(shù)組
31 for (int i = 0; i < list.size(); i++) {
32 retStrs[i] = (String) list.get(i);
33 }
34 //返回該數(shù)組
35 return retStrs;
36 }
37
38 public static void main(String[] arguments) throws Exception {
39
40 String[] t = new Test01().execute(new String[] { "aaaaa", "ccccc",
41 "aaaaa", "aaaaa", "ccccc", "ddddd", "ddddd", "eeeee", "aaaaa",
42 "fffff", "ddddd", "fffff", "ddddd" }, 3);
43 for (String x : t) {
44 System.out.println(x);
45 }
46 }
47
}
posted on 2009-03-11 21:17
jiafang83 閱讀(677)
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