/**
 *  字符串中的字符排序
*/
public class Menu {
 public static void main(String[] args) {
  String s = "afbcedg";
  char[] chs = arrPaiXu(s.toCharArray());
  System.out.println(String.valueOf(chs));
 }
 public static char[] arrPaiXu(char[] arr){
  for (int i = 0; i < arr.length-1; i++) {
   for (int j = i+1; j < arr.length; j++) {
    if (arr[j]<arr[i]) {
     char temp = arr[j];
     arr[j] =arr[i];
     arr[i] = temp;
    }
   }
  }
  return arr;
 }
}