Preface

In today's information technology world, the size of data is growing by leaps and bounds. IT organizations are processing and storing huge amounts of textual data collected from various sources, such as user actions, leads, searches, shopping data, page views, page hits, and various other forms of user interactions. Search algorithms are used for parsing large texts to extract meaningful pertinent information. Regular expressions are the backbone of many such search algorithms.
Regular expressions (or regex in short) are everywhere these days. All the modern programming languages are shipped with a regex module or library to allow programmers to write regex-based programs. Regular expressions are a powerful tool in the programmer's toolbox and allow pattern matching. They are also used for manipulating text and data. This book will provide you with the know-how (and practical examples) to solve real-world problems using regex in Java.
This easy-to-follow regex book is a great place for you to familiarize yourself with the core concepts of regular expressions and to master their implementation with the new features of Java 9. You will learn to match, extract, and transform text by matching specific words, characters, and patterns. Readers will learn how to write efficient regular expressions for solving day-to-day problems involving text-based data.