Java 中的 Matcher reset()方法，示例
原文:https://www . geesforgeks . org/matcher-reset-method-in-Java-with-examples/
matcher 类的 reset() 方法是用来重置这个 Matcher 的，为了更好的理解，建议有 java regex 子包中 Pattern 和 Matcher 类的先验知识。在这里，我们将借助 Java 程序来说明这一点。
语法:
public Matcher reset()
参数:该方法不取任何参数。
返回值:此方法复位后返回此火柴人。
例 1:
Java 语言(一种计算机语言，尤用于创建网站)
// Java Program to illustrate reset() method
// of Matcher class
// Importing class from java.util.regex package
// where regex is a subpackage
import java.util.regex.*;
// Main class
public class GFG {
// Main driver method
public static void main(String[] args)
{
// Getting the regex to be checked
// taking via string input
String regex = "Geeks";
// Creating a pattern from regex
// using Pattern class
Pattern pattern = Pattern.compile(regex);
// Getting the String to be matched
String stringToBeMatched = "GeeksForGeeks";
// Creating a matcher for the input String
// using Matcher class
Matcher matcher
= pattern.matcher(stringToBeMatched);
// Reseting the Matcher using reset() method
matcher = matcher.reset();
// Getting the current matcher state
// using tomatchResult() method and
// printing it
System.out.println(matcher.toMatchResult());
}
}
Output
java.util.regex.Matcher$ImmutableMatchResult@448139f0
例 2:
Java 语言(一种计算机语言，尤用于创建网站)
// Java Program to Illustrate reset() method
// of Matcher class
// Importing class from java.util.regex package
// where regex is a subpackage
import java.util.regex.*;
// Main class
public class GFG {
// Main driver method
public static void main(String[] args)
{
// Getting the regex to be checked
String regex = "GFG";
// Creating a pattern from regex
Pattern pattern = Pattern.compile(regex);
// Getting the String to be matched
String stringToBeMatched = "GFGFGFGFGFGFGFGFGFG";
// Creating a matcher for the input String
Matcher matcher
= pattern.matcher(stringToBeMatched);
// Resetting the Matcher
// using reset() method
matcher = matcher.reset();
// Getting the current matcher state
// using toMatchResult() method
System.out.println(matcher.toMatchResult());
}
}
Output
java.util.regex.Matcher$ImmutableMatchResult@448139f0
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