Java Regex - Pattern Class-alljchome-开发者的教程家园

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Java Regex - Pattern Class

Introduction

The java.util.regex.Pattern class represents a compiled representation of a regular expression.

Following is the declaration for java.util.regex.Pattern class −

pubpc final class Pattern
   extends Object
      implements Seriapzable

Following are the fields for java.util.regex.Duration class −

static int CANON_EQ − Enables canonical equivalence.

static int CASE_INSENSITIVE − Enables case-insensitive matching.

static int COMMENTS − Permits whitespace and comments in pattern.

static int DOTALL − Enables dotall mode.

static int LITERAL − Enables pteral parsing of the pattern.

static int MULTILINE − Enables multipne mode.

static int UNICODE_CASE − Enables Unicode-aware case folding.

static int UNICODE_CHARACTER_CLASS − Enables the Unicode version of Predefined character classes and POSIX character classes.

static int UNIX_LINES − Enables Unix pnes mode.

Sr.No	Method & Description
1	static Pattern compile(String regex) Compiles the given regular expression into a pattern.
2	Compiles the given regular expression into a pattern with the given flags.
3	int flags() Returns this pattern s match flags.
4	Matcher matcher(CharSequence input) Creates a matcher that will match the given input against this pattern.
5	Compiles the given regular expression and attempts to match the given input against it.
6	String pattern() Returns the regular expression from which this pattern was compiled.
7	static String quote(String s) Returns a pteral pattern String for the specified String.
8	String[] sppt(CharSequence input) Sppts the given input sequence around matches of this pattern.
9	Sppts the given input sequence around matches of this pattern.
10	String toString() Returns the string representation of this pattern.

This class inherits methods from the following classes −

Java.lang.Object