A regular expression is a defined pattern used for matching and manipulating strings. In Java, there is a built-in API for regular expressions:
This package has three classes:
This regular expression is not the property of one particular programming language; instead, it is supported by multiple languages.
util.regex.PatternSyntaxException is used to indicate errors in a regular expression.
Some commonly used methods are:
||It returns the description of the error.|
||It returns the index where the error occurred.|
||It returns the expression with the errors.|
||It returns the string containg the description of the array.|
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