自己顶。。。求大神解答啊。谢谢了

package quan;
public class Test3 {
public static void main(String[] args) {
String[] testArr = {"asd","fas","1212asd","fasdf","asdfasd","fdseee","casdf","nsdfgs","asdfff","bbbb","2323","66","asdf","myy",};
testArr = new Test3().orderStr(testArr);
System.out.println("排序输出如下：");
for (int i=0;i<testArr.length;i++) {
System.out.println(testArr[i]);
}
}
public String[] orderStr(String[] arr) {
if (arr == null) {
return new String[0];
}
for (int i=0;i<arr.length-1;i++) {
for (int j=i+1;j<arr.length;j++) {
if (arr[i].compareTo(arr[j]) > 0) {
String temp = arr[i];
arr[i] = arr[j];
arr[j] = temp;
}
}
}
return arr;
}
}

按说这样的题目不难啊。为什么都求助呢？