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Java Matcher find()用法及代码示例


Matcher类的find()方法尝试查找找到模式的输入序列的下一个子序列。它返回一个显示相同值的布尔值。

用法:

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,该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 Doc



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注:本文由纯净天空筛选整理自Kirti_Mangal大神的英文原创作品 Matcher find() method in Java with Examples。非经特殊声明,原始代码版权归原作者所有,本译文未经允许或授权,请勿转载或复制。