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From: Jukka Lahtinen <jtfjdehf@hotmail.com.invalid>
Newsgroups: comp.lang.java.programmer
Subject: Re: Integer.parseInt() and whitespace?
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References: <3f229a4e-af34-424f-b256-2e806e71015a@googlegroups.com> <whitespace-20150405052154@ram.dialup.fu-berlin.de>
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Date: Sun, 05 Apr 2015 14:29:09 +0300
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ram@zedat.fu-berlin.de (Stefan Ram) writes:
> galt_57@hotmail.com writes:
>>So Integer.parseInt(str) fails if the string contains whitespace?

>   In that case java.lang.Integer.parseInt(java.lang.String)
>   behaves according to its specification and throws a
>   NumberFormatException when a conforming implementation of

In many cases, it is a good idea to first use the trim() method to the
String to be parsed.

int number;
String s = getStringToBeParsed(); // whatever you do to get the input
if (s != null) {
    number = Integer.parseInt(s.trim());
} else {
    // what ever is the proper thing to do in the particular case
}

-- 
Jukka Lahtinen