MatchResult toMatchResult()

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小牛编辑

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2023-12-01

描述 (Description)

java.util.regex.Matcher.toMatchResult()方法将此匹配器的匹配状态作为MatchResult返回。结果不受在此匹配器上执行的后续操作的影响。

声明 (Declaration)

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

public MatchResult toMatchResult()

返回值 (Return Value)

MatchResult与此匹配器的状态。

例子 (Example)

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

package cn.xnip;
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) {
      // create a pattern
      Pattern pattern = Pattern.compile(REGEX);
      // get a matcher object
      Matcher matcher = pattern.matcher(INPUT); 
      if(matcher.find()) {
         //get the MatchResult Object 
         MatchResult result = matcher.toMatchResult();
         //Prints the offset after the last character of the subsequence captured by the given group during this match.
         System.out.println("Second Capturing Group - Match String - end(1): "+result.end(1));         
      }
   }
}

让我们编译并运行上面的程序，这将产生以下结果 -

Second Capturing Group - Match String - end(1): 26