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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

Færdigheder: J2EE, Java

Se mere: 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

Om arbejdsgiveren:
( 12 bedømmelser ) Sterling, United States

Projekt-ID: #14671508

70 freelancere byder i gennemsnit $17 for dette job

$60 USD på 1 dag
(178 bedømmelser)
6.6
NovaSofts

Hello Sir We have been working on Freelancer for 2 years and providing the best services to our clients.You can check our profile for checking our expertise.We can provide perfect Quality work. thanks Relevant Skills Mere

$19 USD på 1 dag
(116 bedømmelser)
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 Mere

$17 USD på 1 dag
(68 bedømmelser)
5.6
$15 USD på 1 dag
(79 bedømmelser)
5.2
$17 USD på 1 dag
(13 bedømmelser)
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 in 0 dage
(14 bedømmelser)
5.0
neerajagrawal201

Hi, We are serving in the field of Website & Software Design, HTML, CSS, Java, PHP, C#, javascript, bootstrap, angular.js, .NET, SQL, Biometrics, Android native/hybrid, since 2015. We also started providing service in Mere

$10 USD på 1 dag
(39 bedømmelser)
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 Mere

$12 USD på 1 dag
(10 bedømmelser)
4.2
mahmoudgamal008

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

$25 USD in 0 dage
(8 bedømmelser)
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 Mere

$111 USD på 1 dag
(17 bedømmelser)
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 Mere

$15 USD på 1 dag
(18 bedømmelser)
3.7
microservices

A proposal has not yet been provided

$10 USD på 1 dag
(17 bedømmelser)
3.8
kbmanoj

I have good exposure in java j2ee development.I would like to take up the task.Thanks! Relevant Skills and Experience java j2ee Proposed Milestones $15 USD - development support

$15 USD på 1 dag
(5 bedømmelser)
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. Mere

$17 USD på 1 dag
(4 bedømmelser)
3.2
$15 USD på 1 dag
(9 bedømmelser)
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 på 1 dag
(1 bedømmelse)
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 - Mere

$10 USD på 1 dag
(5 bedømmelser)
3.3
sumit4job

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

$17 USD på 1 dag
(2 bedømmelser)
2.8
$20 USD på 1 dag
(8 bedømmelser)
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 Mere

$15 USD på 1 dag
(1 bedømmelse)
2.3