July 2017
Intermediate to advanced
158 pages
3h 41m
English
Content preview from Java 9 Regular Expressions
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Constructs of the standard regular expression and meta characters
Let's get familiar with core constructs of regular expressions and some reserve meta characters that have a special meaning in regular expressions. We shall cover these constructs in detail in the coming chapters:
| Symbol | Meaning | Example |
| . (dot or period) | Matches any character other than newline. | Matches #, @, A, f, 5, or . |
| * (asterisk) | * matches zero or more occurrences of the preceding character or group. | m* matches 0 or more occurrences of the letter m. |
| + (plus) | + matches one or more occurrences of the preceding element. | m+ matches one or more occurrences of the letter m. |
| ? (question mark) | ? means optional match. It is used to match zero or one occurrence of the ... |
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