Regarding Regular Expressions

Regarding Regular Expressions

Hi I would like to supply my regular expression with a 'default' value, so if the thing I was looking for is not found, it will return the default value as i have mentioned in the Regular Expressions. Please acknowledge me as soon as possible.

Thanks, K.ManojKumar.

View Answers

June 6, 2013 at 5:16 PM

hi friend,

Try the following code snippet may this will be helpful for you

private static final String REGEX = "\\bcat\\b";
private static final String INPUT ="bat";
public static void main( String args[] ){
Pattern p = Pattern.compile(REGEX);
        Matcher m = p.matcher(INPUT); // get a matcher object
        int count = 0;
        if(!(m.find()))
        {
            System.out.println(p.pattern());
        }
 }

Thanks.

Ads









Related Tutorials/Questions & Answers:
Regarding Regular Expressions
Regarding Regular Expressions  Hi I would like to supply my regular..., it will return the default value as i have mentioned in the Regular Expressions. Please acknowledge me as soon as possible. Thanks, K.ManojKumar.
Regular expressions
Regular expressions  Sir/Madam, please tell me the meaning of the following code import java.io.*; import java.util.*; class Demo{ public static void main(String args[]){ double d=1000000.1232323d
Advertisements
i want validation for one text field and text area,email,combobox, in that email will validte by useing regular expressions?
i want validation for one text field and text area,email,combobox, in that email will validte by useing regular expressions?  i want validation... regular expressions?   <html> <h2>Form Validation<
Regular Expressions
Find.java.    Matching Address using regular expressions... Regular Expressions      ... Regularexpression.    Print Matchingwords using Regular expression
Regular expression
Regular expression  how i write a regular expression for a pattern which present in between
Regularexpressions Tutorial
Regular Expressions Introduction In this tutorial I will show you how to use Regular Expressions in Java. What is Regular Expressions? A regular expression... are Regular Expressions examples: Split string after each character using regular
Regular expression
Regular expression  can some one explain how below regex works, ndmurl1=${ndmurl#${ndmurl
Regular expression
Regular expression  I have the regular expression : var x=/(^\d+$)/ which allows only numbers. It does not accept character, decimals. However it accepts zero. I want an expression that takes numbers(no decimals)except zero
Regular expression
Regular expression  how i extract string Coalition of civil society organizations and CSOs from string:- CSOs : What happening in Yemen is political crisis SANA'A, May 16 (Saba)- Coalition of civil society organizations (CSOs
regarding rev
regarding rev  write a prog. in java that display all the arguments passed at the command line in reverse order
Regarding repository
Regarding repository  How to check in and check out using SVN repository using eclipse
Identify correct and incorrect conditional expressions, BETWEEN expressions, IN expressions, LIKE expressions, and comparison expressions.
Identify correct and incorrect conditional expressions, BETWEEN expressions, IN expressions, LIKE expressions, and comparison expressions. Prev Chapter 9. EJB-QL Next   
Form Validation using Regular Expressions is JavaScript
Form Validation using Regular Expressions is JavaScript... is JavaScript validation using Regular Expressions? The JavaScript Validating... incorporated regular expressions. This article I will present a brief tutorial
PHP Regular Expression
Regular Expressions PERL Style Regular Expressions PHP Examples PHP GET...PHP regular expression allows programmer to perform various task like comparing, finding and replacing a particular type of strings. Using Regular
Applying Regular Expressions on the Contents of a File
Applying Regular Expressions on the Contents of a File       This section illustrates you how to search a string in a file content. Following takes the file name from
ModuleNotFoundError: No module named 'expressions'
ModuleNotFoundError: No module named 'expressions'  Hi, My Python... 'expressions' How to remove the ModuleNotFoundError: No module named 'expressions' error? Thanks   Hi, In your python environment
ModuleNotFoundError: No module named 'expressions'
ModuleNotFoundError: No module named 'expressions'  Hi, My Python... 'expressions' How to remove the ModuleNotFoundError: No module named 'expressions' error? Thanks   Hi, In your python environment
javascript regular expression
javascript regular expression  i need a regular expression code for JavaScript
Regarding Hibernate
Regarding Hibernate  Both JDBC and Hibernate are used to connect to database then whats the need of going to hibernate? What are the main differences? And could you let me know please
Regarding Project
Regarding Project  sir, i am doing a project in java. my project is CITY GUIDE it is an web application. please give me documentation of my project
Regarding Project
Regarding Project  sir, i am doing a project in java. my project is CITY GUIDE it is an web application. please give me documentation of my project
Regarding javascript
Regarding javascript  Hi, I want 4 upload buttons in HTML CODE and Among 4 browse buttons user is not selected any one then provide a prompt message like plz select any 1 file among 4 buttons.If user is selected either 1st
split string with regular expression
split string with regular expression  How to split string with regular expression in Java
regular expression for special characters
regular expression for special characters  How to find out regular expression for special characters
Regarding Datasource
Regarding Datasource  Hi friend, Good morning,how r u,i want to share 1 information to u,I got a job in VERIZON DATA SERVICES INDIA PVT.LTD,u help a lot when i am in academic project,with that project only i got a job
regarding jtable...
regarding jtable...  sir, im working with jtables. i wanted to populate a jtable from the database and when i click any row it should add a container below that row itself and show the required details of the row
ModuleNotFoundError: No module named 'regular'
ModuleNotFoundError: No module named 'regular'  Hi, My Python... 'regular' How to remove the ModuleNotFoundError: No module named 'regular... to install padas library. You can install regular python with following command
using regular expression
using regular expression  How can we extract string 'abc.com ' from a string http://[email protected] using regular expression of php
regarding project
regarding project  OBJECTIVES OF THIS PROJECT: -Ability to test the programmer for basic interaction skills to understand the client requirement. -Ability of the programmer to ask the right questions and get
regarding project
regarding project  OBJECTIVES OF THIS PROJECT: -Ability to test the programmer for basic interaction skills to understand the client requirement. -Ability of the programmer to ask the right questions and get the relevant
regarding project
regarding project   sir we need help about project. we have idea about his project please guide me sir. OBJECTIVES OF THIS PROJECT: -Ability to test the programmer for basic interaction skills to understand the client

Ads