我想知道哪种方法更快？

I want to know which method is faster?

Integer.valueOf（字符串字符串）或的Integer.parseInt（String s）返回？

有两种方法之间的任何性能或内存的区别？

Is there any Performance or Memory difference between the two approaches?

我已经看到了Difference parseInt函数和的valueOf在Java？中但之间，这并不解释在性能方面的差别。

I have seen Difference between parseInt and valueOf in java? but this does not explains difference in terms of performance.

推荐答案

我不看性能。该API表示， Integer.valueOf（字符串）是PTED一样的，如果它被传递到除$ P $的Integer.parseInt（字符串） ，只不过它被包装成整数。我想看看你所需要的：一个整数或 INT

I would not look at performance. The API says that Integer.valueOf(String) is interpreted the same as if it has been passed to Integer.parseInt(String), except it is wrapped into an Integer. I would look at what you need: an Integer or an int.

Integer.valueOf 返回整数。

的Integer.parseInt 返回 INT 。