java.util.regex.Matcher.reset()方法重置此匹配器。
Matcher reset() - 声明
public Matcher reset()
Matcher reset() - 示例
下面的示例显示java.util.regex.Matcher.reset()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">region</span><span class="pun">(</span><span class="lit">10</span><span class="pun">,</span><span class="pln"> </span><span class="lit">15</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">"Before reset, regionStart(): "</span><span class="pln"> </span><span class="pun">+</span><span class="pln"> matcher</span><span class="pun">.</span><span class="pln">regionStart</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">"Before reset, regionEnd(): "</span><span class="pln"> </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">
matcher</span><span class="pun">.</span><span class="pln">reset</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">"After reset, regionStart(): "</span><span class="pln"> </span><span class="pun">+</span><span class="pln"> matcher</span><span class="pun">.</span><span class="pln">regionStart</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">"After reset, regionEnd(): "</span><span class="pln"> </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-
Before reset, regionStart(): 10 Before reset, regionEnd(): 15 After reset, regionStart(): 0 After reset, regionEnd(): 18
