java.util.regex.Matcher.toString()方法返回此匹配器的字符串表示形式， Matcher的字符串表示形式包含可能对调试有用的信息。
String toString() - 声明
public MatchResult toString()
String toString() - 返回值
此匹配器的字符串表示形式。
String toString() - 示例
以下示例显示java.util.regex.Matcher.toString()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 MatcherDemo {
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="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="pln">matcher</span><span class="pun">.</span><span class="pln">toString</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-
java.util.regex.Matcher[pattern=(.*)(\d+)(.*) region=0,53 lastmatch=]
