Javaregex 简明教程

Java Regex - MatchResult Interface

Introduction

java.util.regex.MatchResult 接口表示匹配操作的结果。此接口包含用于确定针对正则表达式的匹配结果的查询方法。匹配边界、组和组边界可以通过 MatchResult 查看，但不能修改。

The java.util.regex.MatchResult interface represents the result of a match operation. This interface contains query methods used to determine the results of a match against a regular expression. The match boundaries, groups and group boundaries can be seen but not modified through a MatchResult.

Interface declaration

以下是 java.util.regex.MatchResult 接口的声明 −

Following is the declaration for java.util.regex.MatchResult interface −

public interface MatchResult

Interface methods

Sr.No

Method & Description

1

int end()Returns the offset after the last character matched.

2

int end(int group)Returns the offset after the last character of the subsequence captured by the given group during this match.

3

String group()Returns the input subsequence matched by the previous match.

4

String group(int group)Returns the input subsequence captured by the given group during the previous match operation.

5

int groupCount()Returns the number of capturing groups in this match result’s pattern.

6

int start()Returns the start index of the match.

7

int start(int group)Returns the start index of the subsequence captured by the given group during this match.