Regular Expression "z" construct in Java

The subexpression/metacharacter “\z” matches the end of a string.

Example1

import java.util.regex.Matcher; import java.util.regex.Pattern; public class RegexExample {    public static void main( String args[] ) {       String regex = "Tutorialspoint\z";       String input = "Hi how are you welcome to Tutorialspoint";       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

Number of matches: 1

Example2

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]\z";       String input = "Hi how are you \n this is sample text \n 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

Given input ends with a digit