Java中的 Matcher matches() 方法及示例

Matcher 类的matches()方法用于获取此模式是否与此匹配器匹配的结果。它返回一个显示相同的布尔值。

句法：

public boolean matches()

参数：此方法不带任何参数。

返回值：此方法返回一个布尔值，显示此模式是否与此匹配器匹配。

下面的示例说明了 Matcher.matches() 方法：

示例 1：

// Java code to illustrate matches() 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 matches() method
        System.out.println("Result: "
                           + matcher.matches());
    }
}

输出：

Result: false

示例 2：

// Java code to illustrate matches() 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 matches() method
        System.out.println("Result: "
                           + matcher.matches());
    }
}

输出：

Result: false

参考： Oracle 文档