哪一个是更快？ Integer.valueOf（字符串字符串）或的Integer.parseInt（String s）返回？ [英] Which one is faster? Integer.valueOf(String string) or Integer.parseInt(String string)?
问题描述
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<一个href="http://stackoverflow.com/questions/508665/difference-between-parseint-and-valueof-in-java">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 。
这篇关于哪一个是更快？ Integer.valueOf（字符串字符串）或的Integer.parseInt（String s）返回？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
