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Write a function to check for valid username

write a function to check for null username, special characters, non-printable characters and white space characters in username, and throw appropriate exceptions

Compétences : J2EE, Java

Voir plus : write space google drive, winapi check function, write technical white paper, pagerank check function, check hard drive space, php xss check function, onsubmit check function, check special characters flash, javascript age check function, sql2000 date check function

Concernant l'employeur :
( 12 commentaires ) Sterling, United States

N° du projet : #14671508

70 freelance ont fait une offre moyenne de 17 $ pour ce travail

60 $ USD en 1 jour
(178 Commentaires)
6.6
NovaSofts

Hello Sir We have been working on Freelancer for 2 years and providing the best services to our [url removed, login to view] can check our profile for checking our [url removed, login to view] can provide perfect Quality work. thanks Relevant Skills Plus

19 $ USD en 1 jour
(116 Commentaires)
6.5
abedin94

H , this is sid . I am a software engineer for 2 years . i am a pro in the java field . You can give me the project . Its a piece a cake for me . Relevant Skills and Experience J2EE, Java Proposed Milestones $17 USD Plus

17 $ USD en 1 jour
(68 Commentaires)
5.6
15 $ USD en 1 jour
(79 Commentaires)
5.2
17 $ USD en 1 jour
(13 Commentaires)
5.2
imanolie

Hi there, I am an experienced java developer. I can do this for you in minutes. Relevant Skills and Experience java Proposed Milestones $20 USD - Project completion

20 $ USD en 0 jours
(14 Commentaires)
5.0
neerajagrawal201

Hi, We are serving in the field of Website & Software Design, HTML, CSS, Java, PHP, C#, javascript, bootstrap, [url removed, login to view], .NET, SQL, Biometrics, Android native/hybrid, since 2015. We also started providing service in Plus

10 $ USD en 1 jour
(39 Commentaires)
5.0
tgchauhan1711

Hello sir I am expert in java and j2ee and skills you mentioned. Please see my profile and skills. Please give me more details about your project. thank you Relevant Skills and Experience I have 2 year exper Plus

12 $ USD en 1 jour
(10 Commentaires)
4.2
mahmoudgamal008

I have more than 5 years of experience in java and I can do this task right now

25 $ USD en 0 jours
(8 Commentaires)
3.4
anuragiitk

I am an IITK graduate and I have 9 years of experience in software development. I have 100% completion rate and I have finished all the projects with the highest level of customer satisfaction. Relevant Skills and Exp Plus

111 $ USD en 1 jour
(17 Commentaires)
5.1
anhnh23

Hi there, I have a bachelor’s degree in Computer Science & I have 5+ years in Java; Solving problem and optimizing system are my passion. Satisfied customers is my key strategy. Relevant Skills and Experience Object-o Plus

15 $ USD en 1 jour
(18 Commentaires)
3.7
microservices

A proposal has not yet been provided

10 $ USD en 1 jour
(17 Commentaires)
3.8
kbmanoj

I have good exposure in java j2ee development.I would like to take up the [url removed, login to view]! Relevant Skills and Experience java j2ee Proposed Milestones $15 USD - development support

15 $ USD en 1 jour
(5 Commentaires)
4.4
BhavinJethava

Hi, I have more then 5 years of experience in JAVA,Web technologies like Spring , Hibernate and Desktop application like JAVAFX. Kindly share your requirements in details I will serve you best with my best efforts. Plus

17 $ USD en 1 jour
(4 Commentaires)
3.2
15 $ USD en 1 jour
(9 Commentaires)
3.3
colinxxyy

i can do this for you, check username valid or invalid base on some rules. Relevant Skills and Experience i can do this for you, check username valid or invalid base on some rules. Proposed Milestones $15 USD - 15

15 $ USD en 1 jour
(1 Commentaire)
3.2
mehfuza

Dear Sir, I have done data validation in JavaScript and surely can do this in Java or other language. Relevant Skills and Experience I have experience of programming in Java, C and C++. Proposed Milestones $10 USD - Plus

10 $ USD en 1 jour
(5 Commentaires)
3.3
sumit4job

I have worked with enterprise application which was developed using java / spring. can fulfill ur requirements very easily

17 $ USD en 1 jour
(2 Commentaires)
2.8
20 $ USD en 1 jour
(8 Commentaires)
2.4
skavras

It is a very simple task and I will do this for you with pleasure. Question: usually such functions are needed in JavaScript not in Java. Do need it in Java exactly? I can both, just need to know :) Relevant Skills an Plus

15 $ USD en 1 jour
(1 Commentaire)
2.3