Java：对String数组进行排序，其字符串表示int

Question

我有String[]数组喜欢

{"3","2","4","10","11","6","5","8","9","7"}

我想按数字顺序而不是字母顺序进行排序。

如果我用

Arrays.sort(myarray);

我得到

{"10","11","2","3","4","5","6","7","8","9"}

代替

{"2","3","4","5","6","7","8","9","10","11"}

Answer 1

我认为到目前为止，将Strings 转换为s 的最简单，最有效的方法int是：

int[] myIntArray = new int[myarray.length];

for (int i = 0; i < myarray.length; i++) {
    myIntArray[i] = Integer.parseInt(myarray[i]);
}

然后对整数数组进行排序。如果确实需要，您可以随时将其转换回：

for (int i = 0; i < myIntArray.length; i++) {
    myarray[i] = "" + myIntArray[i];
}

一种替代方法是使用Comparator接口来精确指示元素的比较方式，但这可能等同于将每个String值转换为任意值int-使上述方法更加有效。