无涯教程-Java 正则 - Matcher int regionEnd函数

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java.util.regex.Matcher.regionEnd()匹配器区域的结束索引(不包括)。

int regionEnd() - 声明

以下是 java.util.regex.Matcher.regionEnd()方法的声明。

public int regionEnd()

int regionEnd() - 示例

以下示例显示java.util.regex.Matcher.regionEnd()方法的用法。

package com.learnfk;

import java.util.regex.Matcher; import java.util.regex.Pattern;

public class MatcherDemo { private static String REGEX = "(a*b)(foo)"; private static String INPUT = "aabfooaabfooabfoob"; private static String REPLACE = "-";

public static void main(String[] args) { Pattern pattern = Pattern.compile(REGEX);

  </span><span class="com">//获取匹配器对象</span><span class="pln">
  </span><span class="typ">Matcher</span><span class="pln"> matcher </span><span class="pun">=</span><span class="pln"> pattern</span><span class="pun">.</span><span class="pln">matcher</span><span class="pun">(</span><span class="pln">INPUT</span><span class="pun">);</span><span class="pln">
  matcher </span><span class="pun">=</span><span class="pln"> matcher</span><span class="pun">.</span><span class="pln">region</span><span class="pun">(</span><span class="lit">0</span><span class="pun">,</span><span class="pln"> </span><span class="lit">10</span><span class="pun">);</span><span class="pln">
  
  </span><span class="kwd">while</span><span class="pun">(</span><span class="pln">matcher</span><span class="pun">.</span><span class="pln">find</span><span class="pun">())</span><span class="pln"> </span><span class="pun">{</span><span class="pln">
     </span><span class="com">//在匹配的最后一个字符之后打印偏移量。</span><span class="pln">
     </span><span class="typ">System</span><span class="pun">.</span><span class="kwd">out</span><span class="pun">.</span><span class="pln">println</span><span class="pun">(</span><span class="str">"First Capturing Group, (a*b) Match String end(): "</span><span class="pun">+</span><span class="pln">matcher</span><span class="pun">.</span><span class="kwd">end</span><span class="pun">());</span><span class="pln">    
  </span><span class="pun">}</span><span class="pln">     
  </span><span class="typ">System</span><span class="pun">.</span><span class="kwd">out</span><span class="pun">.</span><span class="pln">println</span><span class="pun">(</span><span class="str">"regionEnd(): "</span><span class="pun">+</span><span class="pln">matcher</span><span class="pun">.</span><span class="pln">regionEnd</span><span class="pun">());</span><span class="pln">    

} }

让无涯教程编译并运行以上程序,这将产生以下输出-

First Capturing Group, (a*b) Match String end(): 6
regionEnd(): 10

参考链接

www.learnfk.com/javaregex/j…