June 2018
Beginner
722 pages
18h 47m
English
Content preview from Introduction to Programming
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Answer
The indexOf() method of the String class does not handle null. Here is some demo code:
String s = null;int i = StringUtils.indexOf(s, "abc"); //return -1s.indexOf("abc"); //throws NullPointerException
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.