Java Regular Expressions Pattern

Description

Click the following links for the tutorial for Regular Expressions and Pattern.

1. Classes Pattern and Matcher.
2. Extracting matched expressions, Email Address Finder
3. Backslashes in regular expressions
4. Java regular expression syntax quick reference
5. Regular expression Pattern class options
6. Test Harness for Regex
7. Catch PatternSyntaxException and get information from it
8. Using a Non-Capturing Group in a Regular Expression



9. Escaping Special Characters in a Pattern
10. Adding Comments to a Regular Expression
11. Using the Captured Text of a Group within a Pattern
12. Setting Case Sensitivity in a Regular Expression
13. Greedy and Nongreedy Matching in a Regular Expression
14. Compiling a Pattern with Multiple Flags
15. Capturing Text in a Group in a Regular Expression
16. Use split method to split a string based on delimiters that match a regular expression



17. Let a user enter the area code for a phone number with or without parentheses.
18. | symbol defines an 'or' operation
19. Reference group in regular expression
20. Create regular expression for U.S. phone numbers with an optional area code
21. Using parentheses to group characters
22. Using escapes In regular expressions with a backslash
23. ? quantifier create an optional element that may or may not be present in the string
24. Duplicating elements rather than using a quantifier \d\d is \d{2}
25. Matching multiple characters any times with Quantifiers
26. What does \d\W[a-z] mean in regular expression
27. Using negation in Regular expressions
28. Use ranges to build a class that accepts only characters that appear in real words
29. Create more than one range in a class
30. Create ranges for pattern with [a-z]
31. Create classes for the first and last characters so they too can be upper- or lowercase:
32. Let the pattern include uppercase letters as well as lowercase letters
33. Using custom character classes
34. \w matches word character (a-z, A-Z, 0-9, or an underscore) and \W matches non word character
35. Limit white space characters to actual spaces, just use a space in the regex.
36. \S matches any character that isn't a white space character.
37. \s class matches white space characters including spaces, tabs, newlines, returns, and backspaces.
38. \D class matches any character that is not a digit.
39. \d class represents a digit and use it to validate a U. S. Social Security number, XXX-XX-XXXX
40. Using predefined character classes
41. Use regex patterns to match a string literal exactly
42. Removing accents and diacritics from given text .
43. Compile a pattern that can will match a string if the string contains any of the given terms.
44. Compile a pattern that can will match a string if the string starts with any of the given terms.
45. Compile a pattern that can will match a string if the string equals any of the given terms.
46. Regular Expression with Multiple Excludes