compile « Pattern « Java Regex Q&A

1. How to escape a square bracket for Pattern compilation    stackoverflow.com

am new to regular expression. I have comma seperated list of regular expressions like: .{8},[0-9],[^0-9A-Za-z ],[A-Z],[a-z]. I have done a split on the comma. Now am trying to match of this regex ...

2. java.util.regex - importance of Pattern.compile()?    stackoverflow.com

What is the importance of Pattern.compile() method?
Why do I need to compile the regex string before getting the Matcher object? for example :

String regex = "((\\S+)\\s*some\\s*";

Pattern pattern = Pattern.compile(regex); // why i ...

3. Java Regular expression    stackoverflow.com

I have a string and a pattern that i want to search for in that string. Now, when i match the pattern in the string, i want to know the string ...

4. usage of ...Pattern.compile()    stackoverflow.com

Using java.util.regex.Pattern.compile() you can specify a pattern as parameter. But how can you specify flags like case-insensitive and ignore whitespaces as well?

5. Compiling blank lines patterns using regex    coderanch.com

Hi, I am new to regex. I am kind of writing a protocol log analyzer, the logs look like following - abc: xyz: blah blah blah ! no no true = yes 123: 909: wow wow wow ! no no true = no mno: tyz: alpha beta gama no no true = yes As you can see each message block is ...