java.time.MatchResult.end(int group)方法返回在此匹配期间给定组捕获的子序列的最后一个字符之后的偏移量。
int end(int group) - 声明
int end(int group)
group - 该匹配器模式中捕获组的索引。
int end(int group) - 返回值
最后一个字符匹配后的偏移量。
int end(int group) - 异常
IllegalStateException - 如果尚未尝试匹配，或者先前的匹配操作失败。
int end(int group) - 示例
下面的示例显示java.time.MatchResult.end(int group)方法的用法。
package com.learnfk;
import java.util.regex.MatchResult;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class MatchResultDemo {
private static final String REGEX = "(.)(\d+)(.)";
private static final String INPUT = "This is a sample Text, 1234, with numbers in between.";
public static void main(String[] args) {
//创建一个模式
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">
</span><span class="kwd">if</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">//获取匹配结果</span><span class="pln">
</span><span class="typ">MatchResult</span><span class="pln"> result </span><span class="pun">=</span><span class="pln"> matcher</span><span class="pun">.</span><span class="pln">toMatchResult</span><span class="pun">();</span><span class="pln">
</span><span class="com">//在此匹配期间打印给定组捕获的子序列的最后一个字符之后的偏移量。</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">"Second Capturing Group - Match String - end(1): "</span><span class="pun">+</span><span class="pln">result</span><span class="pun">.</span><span class="kwd">end</span><span class="pun">(</span><span class="lit">1</span><span class="pun">));</span><span class="pln">
</span><span class="pun">}</span><span class="pln">
}
}
让无涯教程编译并运行以上程序，这将产生以下结果-
Second Capturing Group - Match String - end(1): 26
