How to define single backslash in Java Regex | Java Regular Expressions | Regex in java

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How to define single backslash in Java Regex | Java Regular Expressions | Regex in java

RegexDemo.java

import java.util.regex.Pattern;

public class RegexDemo
{
    public static void main(String[] args)
    {
        /*
         * If you want to define \d, then you must be using \\d in
         * your regex.
         */
        System.out.println(Pattern.matches("\\d*", "245")); // true
    }

}

Output

true

Click the below link to download the code:
https://sites.google.com/site/ramj2eev1/home/javabasics/RegexDemo_backslash.zip?attredirects=0&d=1

Github Link:
https://github.com/ramram43210/Java/tree/master/BasicJava/RegexDemo_backslash

Bitbucket Link:
https://bitbucket.org/ramram43210/java/src/950c9f162cb72194a90be45ab9293fca2b84f41c/BasicJava/RegexDemo_backslash/?at=master

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