java.time.Matcher.pattern()方法返回此匹配器解释模式。

Pattern pattern() - 声明

以下是 java.time.Matcher.pattern()方法的声明。

public Pattern pattern()

Pattern pattern() - 返回值

为此匹配器创建的模式。

Pattern pattern() - 示例

下面的示例显示java.time.Matcher.pattern()方法的用法。

package com.learnfk;

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

public class MatcherDemo {
   private static final String REGEX="foo";
   private static final String INPUT="fooooooooooooooooo";
   private static Pattern pattern;
   private static Matcher matcher;

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

      System.out.println("Current REGEX is: "+REGEX);
      System.out.println("Current INPUT is: "+INPUT);

      System.out.println("pattern(): "+matcher.pattern());
      System.out.println("matches(): "+matcher.matches());
   }
}

让无涯教程编译并运行以上程序，这将产生以下输出-

Current REGEX is: foo
Current INPUT is: fooooooooooooooooo
pattern(): foo
matches(): false

参考链接

https://www.learnfk.com/javaregex/javaregex-matcher-pattern.html