字符串匹配问题

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题目:给定一字符串strOriginal(全英文小写字母组成),            并任意给一字符串strDesc,            编写函数实现:                    判断strDesc是否为strOriginal的任意排序,                    注意重复。                    比如:给定字符串为adcbae,那么dacbea、cabeda都是匹配的,但是dacbe、cabedg不匹配  java代码实现如下: package others;import java.util.Arrays;
import java.util.Scanner; /**
 *
 * 用散列方式实现 *
 */public class TestStr {
 private static boolean testStr(String strOriginal, String strDesc) {
  int[] hashOriginal = new int[26];
  int[] hashDesc = new int[26];  if (strOriginal.length() != strDesc.length()) {
   return false;
  }  for (int index = 0; index < strOriginal.length(); ++index) {
   int indexOriginal, indexDesc;
   indexOriginal = strOriginal.charAt(index) - 'a';
   hashOriginal[indexOriginal] += 1;
   indexDesc = strDesc.charAt(index) - 'a';
   hashDesc[indexDesc] += 1;
  }  return Arrays.equals(hashOriginal, hashDesc);
 } public static void main(String[] args) {
  System.out.print("请输入源字符串:");
  Scanner in = new Scanner(System.in);
  String str1 = (String) in.nextLine();
  System.out.println();
  
  System.out.print("请输入目标字符串:");
  Scanner in1 = new Scanner(System.in);
  String str2 = (String) in1.nextLine();
  System.out.println();
  
  System.out.println("源字符串为:" + str1);
  System.out.println("目标字符串为:" + str2);
  
  if (testStr(str1, str2)) {
   System.out.println("匹配成功!");
  } else {
   System.out.println("匹配失败!");
  }
 }
}