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📜  Java中的 Matcher find() 方法及示例

📅  最后修改于: 2022-05-13 01:55:28.058000             🧑  作者: Mango

Java中的 Matcher find() 方法及示例

Matcher 类find()方法尝试查找输入序列的下一个找到该模式的子序列。它返回一个显示相同的布尔值。

句法:

public boolean find()

参数:此方法不带任何参数。

返回值:此方法返回一个布尔值,显示输入序列的子序列是否找到此匹配器的模式

下面的示例说明了 Matcher.find() 方法:

示例 1:

// Java code to illustrate find() 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 subsequence
        // using find() method
        System.out.println(matcher.find());
    }
}
输出:
true

示例 2:

// Java code to illustrate find() 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 subsequence
        // using find() method
        System.out.println(matcher.find());
    }
}
输出:
true

参考: Oracle 文档