java - How to extract a substring using regex - Stack Overflow
While substring looks for a specific string or value, regex looks for a format. It's more and more dynamic. You need regex, if you are looking for a pattern instead of a special value.
How to use regex with String.matches in java - Stack Overflow
Aug 16, 2017 · How to use regex with String.matches in java Asked 8 years, 3 months ago Modified 8 years, 2 months ago Viewed 27k times
regex - Using regular expressions to extract a value in Java - Stack ...
What I'm really interested in are the Java calls to take the regex string and use it on the source data to produce the value of [some number]. I should add that I'm only interested in a single …
regex - How to escape text for regular expression in Java ... - Stack ...
Sep 12, 2008 · 363 Does Java have a built-in way to escape arbitrary text so that it can be included in a regular expression? For example, if my users enter "$5", I'd like to match that …
java - Check if a String matches specific regular expression - Stack ...
Nov 26, 2013 · I am not so good with regular expressions and stuff, so I need help. I have to check if a input value matches a specific regular expression format. Here is the format I want …
java - Use String.split () with multiple delimiters - Stack Overflow
The string you give is the string form of a regular expression, so: private void getId(String pdfName){ String[] tokens = pdfName.split("[-.]"); // ... } That means "split on any character …
Java - Extract strings with Regex - Stack Overflow
Jan 1, 2010 · The regular expression means "a string containing a word, a space, one or more digits (which are captured in group 1), a space, a set of words and spaces ending with a …
Java String.split() Regex - Stack Overflow
Mar 25, 2012 · You could just split by spaces in your example expression to get the result you want.
How to check if a string contains only digits in Java?
In Java for String class there is a method called matches. How to use this method to check if my string has only digits using regular expression? I tried with below examples, but both of them …
Escaping special characters in Java Regular Expressions
May 19, 2012 · The 4 slashes in the Java string turn into 2 slashes in the regex pattern. 2 backslashes in a regex pattern matches the backslash itself. Prepending any special character …