怎样对Java字符串中进行排序呢？

   使用 Arrays.sort(s)；方法进行排序

               String[] s = sortChar(str);
  Arrays.sort(s);
  printArr(s);

     }
 }

//得到一个每个字符串里元素已经进行过排序的新字符串数组

     private static String[] test(String[] str){undefined
      String st[] =  st = new String[str.length];
      for (int i = 0; i < str.length; i++) {undefined
 char[] c =  str[i].toCharArray();
 charRank(c);
 String s = new String(c);
 st[i]  = s; 
 }
      return st;

     }

//对字符串里元素进行排序

  private static void charRank(char[] c){undefined
      for (int j = 0; j < c.length; j++) {undefined
 for (int j2 = 0; j2 < c.length-j-1; j2++) {undefined
 if(c[j2]>c[j2+1]){undefined
 char len = c[j2];
 c[j2] = c[j2+1];
 c[j2+1] = len;
 }
 }
 }

     }