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  • Building vs. Compiling (Java)

    - by sixtyfootersdude
    Thinking that the answer to this is pretty obvious but here it goes: When I am working on a small project for school (in java) I "compile" it. On my coop we are using ant to "build" our project. I think that compiling is a subset of building. Is this correct? What is the difference between building and compiling?

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  • K-Means Algorithm and java code

    - by Thandar
    Hi all, I need to calculate for grouping objects according to their size. I got k-means algorithms in java which calculate mostly for classifying according to their two or more features and the results are not satisfy for me.I only want to calculate for grouping objects based on one feature.Pseudocode or code would be helpful, too. Thanks u all for helping.

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  • Easy XML Serializer for Java

    - by sdoca
    I'm looking for a way to serialize Java objects into XML for use by a RESTful web service. I don't have an XSD. I have looked at the following: JAXB - fairly heavy weight with annotations required on classes and also an ObjectFactory class and/or a jaxb.index file Simple - requires annotations but no other config classes/files. Unfortunately it can't serialize Sets. XStream - no annotations etc. required, but doesn't support generics Does anyone else have any suggestions?

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  • java on all platforms

    - by noname
    if you wanna code a desktop application in java for windows, mac and linux, will the code be the same for all of them? and you just change the GUI so that the Windows application will be more Windows-like and so on? how does it work without digging into details?

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  • Java - Incrementing through IP addresses in String format

    - by Matt
    I'm new to java and i'm trying to find a way of incrementing through an user input IP address range. For example from 192.168.0.1 to 192.168.0.255. However the way my application works at the moment is the take the from and to ip addresses as a String. Is there a way I can increment through all the ip addresses the user input from and to? Hope this makes sense and please dont flame me, I have looked for an answer!

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  • order of initialization in Java

    - by M.H
    Hi, I want to ask why java initializes the static objects before the non-static objects ? in this example b3 will be initialized after b4 and b5 : class Cupboard { Bowl b3 = new Bowl(3); static Bowl b4 = new Bowl(4); Cupboard() {} static Bowl b5 = new Bowl(5); }

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  • java mapping for oracle number type

    - by aauser
    I have database with oracle number type. Could there any possible issues with using java Double when updating table with numeric column. Should i switch BigDecimal or Double is approriate type. As I fas as I know, BigDecimal is used when arbitrary precision required, when deal with prices for example. Consider simple API updatePrice(Double d) Should i persist double as is or BigDecimal.valueOf(d) is preferable ?

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  • Multiple Layout Managers in Java

    - by ranzy
    Is there way to use more than 1 layout manager in Java. Right now I'm using a gridLayout to implement a chess board but beneath it I would like to put some other stuff but not in a gridLayout. Maybe a FlowLayout or some other layout. How would I go about doing this? Thanks!

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  • Running a Java program with input from a file

    - by Katy
    I am writing a program that reads the input from a file and then prints it to the screen. When I run it without taking the input from the file, it works perfectly fine. However, every time I try to run it from the file it gives me an "Exception in thread "main" java.util.NoSuchElementException: No line found at" error that occurs every place the input is suppose to be read. I have no idea what is going on.

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  • Java Servlet connecting to SQL Server tutorial?

    - by phill
    Can anyone recommend a tutorial on how to write a Java Servlet which connects to MS SQL server and manages data? I'm trying to write something which pulls products out of one database and inserts them into a stored procedure located on another database. Thanks in advance.

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  • Java portal architectural considerations

    - by Woot4Moo
    Currently there exists a need to create an application that will serve 5 different customers each requiring their own specific URL and content repository. My question is when designing this application what should my considerations be for protecting the content of the individual customers while meeting the requirements of the unique URL. The system will be sitting on Windows with a postgres database and java as the implementation language.

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  • wany assignments for java

    - by HW
    Hello, I am a computer science Student Second year ,and i know good deal about c++,Data Structure, File Structure,OOP etc. I decided to learn java i have read couple of books but i know u need practice to master any Programming language so i wonder if anyone could give me the assignments"only the questions not the solution" so that i could solve them as i am getting bored of "hello world"s and "3+2=5"s kinda stuff thanks, ~HW

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  • Calling webservice with the generated xml in Java

    - by engin
    Hi, I need to call a very complex service (It's a HL7 service) it's taking a lot of unnecessary information. To call from java I need to write all those information and its very time consuming. I have sample XMLs, they have been filled with those unnecessary information, I just need to change 1 parameter and send it. How can I use that already generated XML? Thanks,

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  • Resize form objects in Java

    - by PeerFull
    I have a Java applet, which is a form that draw shapes into it (Rect, Oval, Line). Each shape is represented by 2 points and can draw itself to the form. When the JApplet form resizes, I need to resize the shapes also while keeping the aspect ratio. I didn't find an high quality solution for doing this that solves this problem. Tried to write a solution from this, but it came up as lousy when tested, Can someone publish an example code for doing that please?

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  • Reading barcodes from Java

    - by santiagobasulto
    Hello everyone. I'm dealing with a barcode reader in my java app. The problem is that the barcode, before and after reading and sending the actual barcode, sends a return code. I've some JTextFields and when the reader reads the barcode it change the focus, and then sends another return that makes the window to close. Is it anyway to "intercept" those "return" commands ?

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  • JRadio Menu buttons - JAVA

    - by user337465
    I have a relatively easy question. I have to create a java GUI to do math based calculations. I have to have a menu item that will double the variable that I am doing calculations with. For example variable = 1 if radio button = selected{ variable = variable * 2 } So, how would I achieve the if statement there? thankyou

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  • reading a text file in java

    - by aks
    I want to read a text file containing a space sepearted vlaues.Values are integers. How can i read it and put it in a array list?? eg of contents of texx file 1 62 4 55 5 6 77 now i want a arraylist as [1, 62,4,55,5,6,77]. How do i do it in java?

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