English | 简体中文 | 繁體中文 | Русский язык | Français | Español | Português | Deutsch | 日本語 | 한국어 | Italiano | بالعربية

Java中的正则表达式“\ Z”元字符

L'espressione regolare/Carattere speciale “\ Z” corrisponde alla fine della stringa, ma escludendo i terminatori di riga consentiti.

Esempio 1

import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class RegexExample {
   public static void main( String args[] ) {
      String regex = "w3codebox$";
      String input = "Hi how are you welcome to w3codebox";
      Pattern p = Pattern.compile(regex);
      Matcher m = p.matcher(input);
      int count = 0;
      while(m.find()) {
         count++;
      }
      System.out.println("Number of matches: " + count);
   }
}

Output result

Number of matches: 1

Example 2

The following Java program verifies whether the given input text ends with a digit.

import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Data {
   public static void main( String args[] ) {
      String regex = "[0-9]$";
      String input = "Hi how are you 
 this is sample text 
 this is third line 554";
      Pattern p = Pattern.compile(regex);
      Matcher m = p.matcher(input);
      if(m.find()) {
         System.out.println("Given input ends with a digit");
      } else {
         System.out.println("Given input doesn’t end with a digit");
      }
   }
}

Output result

Given input ends with a digit