Java中的 Matcher toMatchResult() 方法及示例

Matcher 类的toMatchResult()方法用于获取此 Matcher 的当前结果状态。

句法：

public MatchResult toMatchResult()

参数：此方法不带任何参数。

返回值：该方法返回一个MatchResult与当前 Matcher 的匹配结果状态。

下面的示例说明了 Matcher.toMatchResult() 方法：

示例 1：

// Java code to illustrate toMatchResult() method
  
import java.util.regex.*;
  
public class GFG {
    public static void main(String[] args)
    {
  
        // Get the regex to be checked
        String regex = "Geeks";
  
        // Create a pattern from regex
        Pattern pattern
            = Pattern.compile(regex);
  
        // Get the String to be matched
        String stringToBeMatched
            = "GeeksForGeeks";
  
        // Create a matcher for the input String
        Matcher matcher
            = pattern
                  .matcher(stringToBeMatched);
  
        // Get the result state
        // using toMatchResult() method
        System.out.println("Result: "
                           + matcher.toMatchResult());
    }
}

输出：

Result: java.util.regex.Matcher[pattern=Geeks region=0, 13 lastmatch=]

示例 2：

// Java code to illustrate toMatchResult() method
  
import java.util.regex.*;
  
public class GFG {
    public static void main(String[] args)
    {
  
        // Get the regex to be checked
        String regex = "GFG";
  
        // Create a pattern from regex
        Pattern pattern
            = Pattern.compile(regex);
  
        // Get the String to be matched
        String stringToBeMatched
            = "GFGFGFGFGFGFGFGFGFG";
  
        // Create a matcher for the input String
        Matcher matcher
            = pattern
                  .matcher(stringToBeMatched);
  
        // Get the result state
        // using toMatchResult() method
        System.out.println("Result: "
                           + matcher.toMatchResult());
    }
}

输出：

Result: java.util.regex.Matcher[pattern=GFG region=0, 19 lastmatch=]

参考： Oracle 文档