October 2015
Intermediate to advanced
552 pages
11h 8m
English
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Chapter 9
Regular Expressions
Text-processing applications often need to match text against patterns (character strings that concisely describe sets of strings that are considered to be matches). For example, an application might need to locate all occurrences of a specific word pattern in a text file so that it can replace those occurrences with another word. NIO includes regular expressions to help text-processing applications perform pattern matching with high performance. This chapter introduces regular expressions.
Pattern, PatternSyntaxException, and Matcher
A regular expression (also known as a regex or regexp) is a string-based pattern that represents the set of strings that match this pattern. The pattern consists of literal characters ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.