Exercises, examples and other material relating to training module J816. This module is presented on Private Courses
and Specially Run Courses
As from release 1.4, Java 2 comes with a regular expression class that supports patterns similar in style to Perl regular expressions. This module gives you a brief introduction to regular expressions if you're not already familiar with them, then covers Java-specific topics such as compile and match methods, Pattern objects and PatternSyntaxExceptions.
Related technical and longer articlesRegular Expressions in Java
|Articles and tips on this subject||updated|
|1195||Regular Express Primer|
Over the years I've been teaching people about Regular Expressions, I've learnt what does and doesn't work in such tuition. A casual question I saw yesterday got me writing, and I've just posted up a new technical article to the solution centre - see here (it will open in a separate window).
Examples from our training material
|Reg1.java|| Regular expressions - look for email address|
|Reg2.java|| Regular expressions - look for all matching lines in a file|
|Reg3.java|| Look for all lines containing a term and report the first field from matching lines|
|Reg4.java|| Look for email address on command line and report on user and domain name parts|
|Reg6.java|| Regular expressions - match and replace|
Some modules are available for download
as a sample of our material or under an Open Training Notes License
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Topics covered in this module
Review of basic string handling.
Introduction to regular expressions.
Pattern and matcher objects.
Literals, anchors, character groups and counts.
Splitting with regular expressions.
Capturing matched strings and using replace methods.
Reluctant and greedy qualifiers.
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