\\d = only digit allow {3} = length. Write a java program check Number Validation. Hope that helps, assuming it’s a UK phone number. How to validate 10 digit mobile number in java or jsp..? Jeff Verdegan wrote:But if the input requirement is that it's exactly 10 digits long and allows leading zeros, then to me, that sounds more like a 10-character string that consists only of digits. e.g: 0123456789, "Leadership is nature's way of removing morons from the productive flow" - Dogbert Articles by Winston can be found here, brent bynum wrote:My program is asking the user to enter a student ID. The phone number can be validated using the java.util.regex.Pattern.matches() method. In this tutorial, we develop code to Generate Random numbers using Java and also generate an unique 10 digit phone number using the random numbers 0 … If the requirement were changed in the future so that student Ids were allowed to combine digits and characters, then I would probably switch to Regex. Campbell Ritchie wrote:I would suggest that learning how to use a regular expression which checks for ten digits would be better. Kunal Lakhani wrote:This works for accepting a 10digit no only. In other parts, does it say anything about treating it as a number or as a String? Phone Number Validation in Java. If it doesn't there should be some type of error.

You probably don't want to return an int there. Right away, they always made a mistake on writing the code because they are just using the NumberFormatException code. We might write a dedicated article in the future. Reply. (although I totally agree that they should all be encapsulated in classes).

Regular expression pattern in Java always is the best method to validate an user’s phone number. Top Rated ; Most Recent; Rate this: Please Sign up or sign in to vote. Java Regex - Tutorial Here is how you implement a regex in Java. your student ID should not be a numerical type if you're not going to use it as a number. Regular expression for UK based and only numeric phone number in cakephp Here are some example regexs. You may be surprised ... WP, Campbell Ritchie wrote:I know I am in the minority, but maybe Henry’s last post with "[1-9][0-9]{9}" in suggests a regex isn’t quite such overkill after all. What would be the best way to do it? See more: Java. . Write a program to read a string of 10 digit number, check whether the string contains a 10 digit number in the format XXX-XXX-XXXX where ‘X’ is a digit (Number Validation). I think the readability this way is better than using Regex. Change them to longs, and change the parse routines to radix 36? The following regular expression in ASPX file validates the number. And actually, U.S. zip codes have a very strict numerical progression - why do you think they added the extra 4 digits? Previous Next In this post, we will see how to validate phone number in java. This student ID should have ten digits(1234567890). If not, we ask user to enter full mobile number. In my experience, more often than not they're simply the lazy man's alternative to defining a proper class. . brent bynum wrote:Came up with this. Ten-Digit Number. Take an infinite number of programmers, and eventually they'll write all the great works of Shakespeare... . and I suspect (because he hasn't told us) that brent is confusing the first with the second. Jeff Verdegan wrote:However, will your app ever know or care about the semantics of the specific numerical values? Jeff Verdegan wrote:Same here for people treating something as a number just because it consists only of digits. 2 solutions. This method matches the regular expression for the phone number and the given input phone number and returns true if they match and false otherwise. We have used Java Script to validate the Mobile Number to 10 digits and Phone Number to 10 Digits. This works for accepting a 10digit no only. The rest 9 digit can contain any number between 0 to 9. Jeff Verdegan wrote:Sounds like crappy requirements. Obviously, with something like a phone number, you're dealing with a compound code, but there are still some advantages to dealing with each component as a number; the same with zip codes, CCN's, BAN's and SKUs. If it were me doing this for real, I would use String.length followed by org.apache.commons.lang.StringUtils.isNumeric. For example 1) 012-6677889 – Passed 2) 01216677889 – Failed , “-” missing 3) A12-6677889 – Failed , only digit allow 4) 012-66778899 – Failed, only 7 digits at the end. Please give me the solution... Posted 4-Oct-11 18:23pm.

Validation. When it was not 10 digits, I was prompted for input. JSP. durga reddy says: July 28, 2016 at 5:41 am

Full source code of phone number validation in Java Winston Gutkowski wrote: . We have also used Java Script to get the valued entered in the form and displayed it as the user clicks Submit button. Classic case of introducing the possibility of error to me. Solution 1. The mobile number can have 11 digits also by including 0 at the starting. Dennis Deems wrote: I ran the program. In this article, we focus on the Java Regex only. and email id entered by the user. This looks like a job for .... legal tender! It has to be 10 digits. Here i provide a regex pattern to determines if the phone number is in correct format, the pattern force starting with 3 digits follow by a “-” and 7 digits at the end.

Note: We are considering a demo number for our example since we cannot use our phone number publicly. \\d{3}-\\d{7} Explanation \\d = only digit allow {3} = length [Edit]The latter regex would permit IDs beginning in 0[/edit]. 2.

And even if not, I still say that a 10-digit code is a number unless I've got a good reason to think otherwise. However, libphonenumber seems to be pretty interesting. Does it represent an ordinal value? It just isn't working when studentID isn't 10 digits, I would suggest that learning how to use a, I know I am in the minority, but maybe Henry’s last post with.

public static int getStudentID( Scanner keyboard ), Books: Java Threads, 3rd Edition, Jini in a Nutshell, and Java Gems (contributor), William P O'Sullivan wrote:Getting there.. print out the length() using: William P O'Sullivan wrote:Now.. What happens if the Id begins with 0? We're also dealing with more than one thing: 1. Part of that is an inbred aversion to using Strings simply because they're there. Of course, you weren't specific when you said "it isn't working", so it's possible some other behavior is desired than what I observed. Mobile Number validation criteria: The first digit should contain number between 7 to 9. Came up with this. What would be the best way to do it?

All phone numbers must in “xxx-xxxxxxx” format. When asking a user to enter a mobile number, we usually validate if a number has 10 digits or not. Number Validation: Only numbers in TextField using Java GUI Submitted by donbermoy on Tuesday, April 29, 2014 - 15:18. I don't think a regex is overkill at all, though I agree that it may defeat the point of the exercise and not be appropriate in this particular setting. Input and Output Format: Input consists of a string. .

It will take a lot longer to learn, I am afraid. It says so right in this tiny ad: current ranch time (not your local time) is, edit - please don't provide full solutions, https://coderanch.com/t/730886/filler-advertising, Help with writing a program that gets student information from the user (Lengthy Post), passing to method and returning value from method. For one thing, if IDs less than 1,000,000,000 are allowed (e.g., if 0 999 999 999 is allowed (minus the spaces)), then things get confusing, and the whole "has to be 10 digits" doesn't make sense, because ints don't have leading zeros. This student ID should have ten digits(1234567890). Rate this: Please Sign up or sign in to vote.

In this case, I've a TextBox control on an ASP.NET Form. The leading plus (+) serves as an international prefix symbol, and is immediately followed by the country … snehal nikam2. Is "123" the 123rd in the sequence, and does that matter to its semantics? Add a Solution.

System.out.println("Id=[" +studentID +"] length=" +studentID.length()); I need to validate the mobile number, it should be 10 digit and its starts from either 7,8 or 9. Jeff Verdegan wrote:If you make your zip code (post code) an int, and next year you want to ship to Canada, uh-oh. Can you use "\\d{10}" instead? this forum made possible by our volunteer staff, including ... My program is asking the user to enter a student ID. Will we be doing mathematical operations on it. Display. brent bynum wrote: I am not sure what the answer is if the ID starts with 0. how to validate 10 digit mobile number in java or jsp.

And if, indeed, the number must be 10 digits with no leading zeroes, then it seems to me that the easiest is to do the number conversion first and then check that it's > 999999999. Code I have started: Validate any international phone number as per E.123 E.123 is a standards-based recommendation by the International Telecommunications Union sector ITU-T. E.123 provides following specifications. (For those unfamiliar with this library, this method loops over the String's char array and tests whether each element is a digit.) If my student ID is 13 (and I'm probably old enough), why force me to put eight '0's in front of it?

. It just isn't working when studentID isn't 10 digits. In this example we have created a Mobile Number Validation Form that displays the Mobile Number, Phone No. how to check 10 digit mobile number between comma in textbox using vb.net how to add client side validation in MVC using jquery to check that mobile number entered in is not less than 10 digits how to validate 10 digit mobile number in java or jsp When student Id was 10 digits it was printed to the console.