Last seen: Jul 12, 2014 10:19 AM EDT
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Rate: $20.00 USD/hour
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Duc A. Nguyen

[ your satisfaction is my goal ]

Username: DucNA

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Location: Kuala Lumpur, Malaysia

Member since: January 2012



(107 reviews)

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8 users have recommended this freelancer.

My projects:

  • $85.00 USD
    Profile image for Seller skydevs


    Jun 10, 2014

    Excellent guy. He is too good at java. Would love to hire him again! :) Thanks man

    Project Description:Hello, I need urgent help in doing a Java Test online. Please only bid if you have a certification or are very good at it. Need to do it now. Budget is about 30$ Thanks.
  • $29.00 USD
    Profile image for Seller lama33


    Jun 7, 2014

    very professional java programmer , very satisfied with work and of course will hire him in the future

    Project Description:I have text file separated by "|" , I want code to read the file and select some information and write it in new file
  • $35.00 AUD
    Profile image for Seller wijewp


    May 29, 2014

    Java experts! couple of hours before the promised time. super fast performance. Very reliable freelancer. Even he supported me after the project finish as well. Highly recommended!!!

    Project Description:text based simple java game . all the details will provide
  • $70.00 USD
    Profile image for Seller rbernard


    May 10, 2014

    professional , hard worker , 100% available anytime , expertise in java excellent . we start with one milestone , then assign 2 more. all delivered on time. ill hire again in the future.

    Project Description:N/A
  • $40.00 USD
    Profile image for Seller dshiznet24


    May 8, 2014

    5/5 all around exactly what i wanted! thanks!

    Project Description:it includes writing classes with constructors. To sum up the program, it will ask you to enter in a string then have a method with constructors that will return the number of vowels in the string then another method that will return the number of consonants in the string...
  • $100.00 USD
    Profile image for Seller KitKatPat


    May 6, 2014

    Mr. Nguyen is a class act. I have to say I was very nervous giving money to a website like this and to someone I didn't know or had even gotten to talk to but my experience could not have been better.

    Project Description:I am looking for someone to program my Final for me.
  • £40.00 GBP
    Profile image for Seller hastech


    May 4, 2014

    Excellent freelancer, have already started working with him again!

    Project Description:I require a freelancer who can create two simple Java spring applications using the Netbeans IDE. 1. Grade Calculator 2. Egfr Calculator Calculations for both calculators will be provided. The...
  • $10.00 USD
    Profile image for Seller michaelwang502


    Apr 29, 2014

    awesome job thanks guys

    Project Description:N/A
  • $30.00 USD
    Profile image for Seller hooba94


    Apr 28, 2014

    perfect work !

    DucNA's reply:

    This is the first time of this guy on this site. And it"s the reason why he rated only 3.8/5 while he said "perfect work". Never mind this one!

    Project Description:i need you to help me with this assignment, the description is on the file that i attached. i need it to be due on april 26th 8 pm west zone time
  • $45.00 USD
    Profile image for Seller therelaknewman


    Apr 25, 2014

    Excellent work, very patient with me.

    Project Description:The program will take the number of credits for each course, the number of credits expected to be completed per term, and the tuition cost per term. It will output the number of terms until completion,...
    Duc A. Nguyen has not completed any projects.
  • $300 USD In Progress

    [This is a Private Project. You must be logged in to view the Project Description]

  • $20 USD/hr In Progress

    Hi all, I would need help to fine tune my app. I"m developing an app (logistic management system) using Struts, Spring and Hibernate and the front end is using jquery, bootstrap v3 on responsive template. The app is still under development stage and I just need help to review the code and provide the best way / practice overall. I probably need a few hours here and there. Please let me know if you are available. Thanks Wilkins Leung

  • $60 CAD In Progress

    Assignemnt 1:1.Using Spring framework convert a bank application into a web application. The code to use is CEJV549Ass1b.zip2.When the calculation is completed successfully it should be written to the database using either jdbcTemplate or Hibernate. On the main form there is always a button to display a table of al calculations saced to the database3.Use example SpringMVCForm02 to learn how to create a form and return an answer to it 4.Use SpringMVCForm to learn how to send a query to the database and then display the records in a table.Assignment 2:Here is my second assignment using Swing application . Use dbtable3 as an examplesee files scan1.jpg , scan2.jpg and

  • $35 USD In Progress

    write some java code -- around 50 to 100 lines --- time is short - ahould be finished in max of 3 hours - 100$ only -- write some java code -- around 50 to 100 lines --- time is short - ahould be finished in max of 3 hours - 100$ only --

  • $40 USD In Progress

    In this assignment, you will implement a simple Peer‐to‐Peer File Sharing Application using TCP Socket Programming. The application will be designed as a hybrid version of client‐server and P2P programming models and by using threads.This project"s due date is 12.04.2013The BUDGET is 40$

  • $30 USD In Progress

    The department’s bylaws state up to 10 peer tutors may be hired for a given fiscal year. Peer tutors are paid based on their highest degree earned and the number of students they assist.Highest Degree EarnedStipendBS$9.50 per studentMS$15 per studentPhD$20 per studentThe program will first have the user enter in a list of peer tutor names. Then, the program will present each name, based on a list alphabetized by last name, for the user to enter each peer tutor’s highest degree earned. Then, the program will present each name, based on a list alphabetized by last name, for the user to enter the number of students each peer tutor has assisted. From this additional information, the peer tutor’s stipend may be calculated. Lastly, the program will print out a report of each peer tutor, alphabetized and their individual stipend. The report must also contain a total stipend amount across all peer tutors. Printer class must not be used. JoptionPane.showMessageDialog/showInputDialog must be used instead.The program must be completed with as many methods as possible.

  • [Sealed] In Progress

    Fix J2SE / JEE code that uses iText PDF To Optimize Memory use and any other bugs / issues.This project is for some one with experience in iText pdf library.We have written a J2SE code (by using iText) to convert from csv / mysql.database to pdf etc.This j2se code is also being used as a library in our JEE / jsp, spring, mysql web application for creating pdf.We will be selecting multiple individuals.Upon selection, you will be shown the source code in svn.After seeing the source code, you will decide if you want to do this work or not.Please only bid on this, if you know your job well and are good at it.Note: Some of the code has been optimized by others. We like to do more though.

  • €120 EUR 3 days ago

    Basically it is all explained in the pdf that I attached underneath

  • $25 USD 4 days ago

    there is nothing inside to choose any date. but now exception probably i am only missing some library pls send pm for files.

  • £50 GBP 5 days ago

    i need some support in processing data, i need someone who can help guide me with the project that im working on, contact me for more details on the help i need.

  • $15 USD/hr 5 days ago

    To create Billing system using JAVA OpenWare as a platformThere are 2 Input sources of this platform are in XML formatThis platform is flexible enough to upload and extract data easily.Once, the billing is ready, the subscriber will receive the bill in PdF format.

  • $25 USD 5 days ago

    have them written but don"t have time to correct small errors

  • $30 USD 5 days ago

    You are to design a new "String" class which holds a character string as a singly linked list of characters. Each node in the singly linked list has a single character as its data. The class must include the following methods in addition to those you think may also be needed in this program:- 2 search methods: one starts search for a key (also a "string") from left end of a string; the other starts search from any point (passed in as a parameter) of a string- charAt: accesses a character in a string- 2 substring methods: one uses one parameter as the start point; the other specifies start and end points- insert: allows a string to be inserted to any point of an original string- printYou will then design a "Number" class which can hold an integer of any length using the new String class (each integer is managed as a string of digit characters). Integers of any length can be entered, added and subtracted and output using the class.Design a MainClass to test all the required operations in both classes.

  • $15 USD/hr 5 days ago

    The project is a web application running off of annotated Spring MVC integrated with Apache Tiles, Hibernate for ORM and DB2 as the back end database. The front end views are made up of JSPs using JSTL and CSS. The database is connected to in Read Only mode using DB Visualizer. We would need to follow a remote pair programming methodology where you would drive and I would navigate. The development would be using Spring Tool Suite integrated with Subclipse. SVN is the version control of choice and code commits are through the IDE.

  • $25 USD 6 days ago

    I have code for rss feed working that i need to create c# class lib, and after generating the dll use it on a web site.You will remote to my pc using TeamViewer and i will record the session so that we don"t have any problems.-- please if after tomorrow i see a problem i will email you and you will fix.It should take you no more than 5 minutes to do this, i just get a few errors because is my first time.I consume it on the page like this: You"ll be using Assembly the properties hat you see in the picture.

  • $20 AUD/hr 7 days ago

    We are hiring a java developer to join our team. We are a young company with larger contracts and one of our softwares has been used by many companies.

  • $800 USD 8 days ago

    I need a Java programmer who has at least 5 years of experience in coding in pure java without framework.The person must be very good at object oriented programming with the best practices in mind when coding.This web application project consist of matching - between 2 parties, allowing viewing of the page which contains all qualified match, sending out sms to qualified match candidates(optional) enable posting/update news by the administrator.Mysql, tomcat to be used.

  • $20 USD 11 days ago

    Need someone with college java assignment ....

  • $29 USD 12 days ago

    must have knowledge about primefaces

  • $30 USD 12 days ago

    Disclosed information inside the document. You must be familiar with algorithmic design and datastructures. Simple project.

  • $300 USD 15 days ago

    1) windows form application with graphics .2) sql server .3) .4) wpf

  • $29 USD 16 days ago

    Write a Java program in an Eclipse project that does the following. Input from the keyboard text that represents an eight digit binary number starting with a one. Confirm that the input is a valid binary number. Have the program continue requesting input until the number is a valid binary number.Once the number is valid, convert it to a number in the decimal system, and print it. Divide the number by a random number between 2 and 5 and continue dividing until the quotient is less than 109. Print the quotient, which is the temperature in Fahrenheit. Also print that temperature in Celsius (C = (5/9)(F-32)). Label accordingly.If the quotient above is greater or equal to 80 print that it is summer. If it is greater or equal to 60 and less than 80, print that it is spring. If it is greater or equal to 40 and less than 60, print that it is fall. If it is less than 40, print that it is winter.The program must have three classes: 1) a client class with the main method, 2) a service class where the binary number is input and validated, and 3) a service class that converts the binary to a decimal number, does the divisions, and determines the season.

  • $40 USD 16 days ago

    i hava a java jsf project and made a new site. when i redirect without template it works but with template i am somehow redirected back to the original page. write pm for files

  • $85 USD 17 days ago

    Hello, I had a mini school project about Cinema/Theatre Booking Seat Reservation in JAVA and database mysql.Can you help me fast (about max 1 week)?I sen every details about the project, its simple...Thank you ;)

  • $80 USD 18 days ago

    Hi, I have a simple Java project that needs to be designed and programmed, it is a simple event management system with various roles and privileges, the attached file describes the program and requirements. Please note that you are not allowed to use any kind of DB including Sqlite, all storage should be done on text files.

  • $25 USD 19 days ago

    I have a java program which takes picture as a input and processes it with the java code I have written. Output will be a picture again and I need that picture to be displayed again on the JSP page. I need this task to be done in 3 hours.

  • $20 USD/hr 21 days ago

    We are developing a large Social Media/Networking centered infrastructure, the specific aspect of which this job relates to is a Java RESTful API that accepts requests over https.If interested please contact us.

    Duc A. Nguyen does not have any open projects.
    Duc A. Nguyen does not have any work in progress.
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Freelance Developer

Jan 2010 - Present (4 years)


Bachelor of software engineering


Master of software engineering



SCJP - Sun Certified Java Programmer 6

Sun Microsystems Inc

The SCJP is a programming certification that demonstrates that the owner is proficient in Java programming.


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