Java 中的 Matcher find()方法,示例
原文:https://www . geesforgeks . org/matcher-find-method-in-Java-with-examples/
匹配器类的 find() 方法试图找到输入序列中找到模式的下一个子序列。它返回一个显示相同内容的布尔值。
语法:
public boolean find()
参数:该方法不取任何参数。
返回值:这个方法返回一个布尔值,显示输入序列的子序列是否找到这个匹配器的模式
下面的例子说明了 Matcher.find()方法:
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
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: 甲骨文文档
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