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• Java out.println() how is this possible?

  - by user69514

  I've seen some code such as: out.println("print something"); I tried import java.lang.System; but it's not working. How do you use out.println() ?

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• Java: Interface vs Abstract Class (regarding fields)

  - by lifeR00t

  From what I have gathered, I want to force a class to use particular private fields (and methods) I need an abstract class because an interface only declares public/static/final fields and methods. Correct?? I just started my first big java project and want to make sure I'm not going to hurt myself later :)

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• Java Applet question regarding data manipulation

  - by seraphina

  Generally, how does a java applet manipulate user data? Take for instance "shopping carts" on shopping websites - after a user enters the data, is the data then preloaded each time a user accesses a website? Or is the data retrieved as the user is on the page?

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• java.lang.NoClassDefFoundError while running JUnit test in Netbeans

  - by Chandru K

  I am building an Android hello world application in Netbeans. It's building properly and I am to run in the emulator also. But when creating and running the Junit test and running the test I get a java.lang.NoClassDefFoundError. How can I fix this problem?

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• When to use primitive and when complex types in java

  - by Gandalf StormCrow

  Hello, In which case should you use primitive types(int) or complex types(Integer)? Ex: http://stackoverflow.com/questions/2508918/why-java-compiler-does-not-like-integer-as-type-for-values-in-hashmap this example works with Integer type. Should we always use Integer as a complex type?

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• When best to use an interface in java

  - by Dan

  A good example of when exactly to use interfaces specifically in Java would be ideal and any specific rulings that apply. Thanks in advance.

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• Java ME right to left TextField label

  - by Nimrod Shory

  Hello, I'm writing a Java ME app and i need the label for the text field to be right aligned.. I've tried setting the layout of the TextField to Item.RIGHT but it doesn't seem to affect anything when running on my test phone (Nokia E71). The text inside the TextField is right aligned and Lists and such items are desplayed correctly (RTL aligned) but the TextField label isn't. Any ideas? Thanks.

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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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• how to show error in result in red color in java

  - by smita

  I want to show error(text) in result in red color after compiling exec file and display it in textarea of gui using swing in java.

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• SQLJ VS JAVA files

  - by Debuger

  Hi! Can anyone expalain difference between .sqlj and .java files? Best regards!

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• Java FilePath Android

  - by user654460

  I have an android app that I am trying to get a file path for a SAX parser. I have the following structure: assets:(Where my xml file is) src(same level as assets) com msi androidrss(The calling java file is in here) I tried several variations of this: InputSource is = new InputSource("file://../../../../assets/Rss.xml"); But I always get a FNF Exception Any suggestions? Thanks

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• Incorrect Date in Java

  - by Polaris

  I use next code to print current time Calendar cal = Calendar.getInstance(); System.out.println(cal.getTime()); I have Windows XP sp3 istalled. Current time in system tray is 14:30. But this code return 13:30 Why returned time is wrong?

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• What's the Java equivalent of the term "pythonic"?

  - by Chris Sears

  If I wanted a single word that meant "conforming to Java language conventions", what would that be? Python has the term "pythonic". Would it be "javaish"?

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• Excel In Java Web Application

  - by Anand

  Hi I have a java web application running on windows currently. I may host it in future in a Linux Server. My application allows people to upload data. I want to display the data they have uploaded in an excel file and render it in a portion of my webpage. How do I go about this ?

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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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• 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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• language specific virtual keyboard with java

  - by user343285

  Hello everyone! I have to make an on-screen keyboard using JAVA on linux. the problem is it has to work on the most languages. for start, i need to et the current locale, that's clear, but after that, is there any way of getting the keyboard layout and maping of that locale? i searched for hours, but couldn't find a thing, so i really hope you can help me. Thanks in advance, Adam!

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• Accessing the shadowed field from enclosed member class (Java)

  - by kolm

  Hi there, is it possible to access a shadowed field of an enclosing class from the enclosed one in Java? public class Inherit { public int a = 3; private int b = 5; public class Inheriting { public int a = 23; private int d = 8; public void f() { System.out.println("Here I want to get a = 3"); ... } } } Cheers!

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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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• 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 tutorials for beginning programmer

  - by ChrisC

  I have next to no programming experience, and absolutely none with Java, so I'm looking for some good online tutorials/primers. Please point me to good ones for beginners like me. Thanks.

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• Create a SortedMap in Java with a custom Comparator

  - by kunjaan

  I want to create a TreeMap in Java with a custom sort order. The sorted keys which are string need to be sorted according to the second character. The values are also string. Sample map: Za,FOO Ab,Bar

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• Java Conceptual Graph Visualization library

  - by nikky

  Hi I need to visualize conceptual graph by using java and I'm wondering if there any library that i can use to make my work easier? Any advice? Thank you so much

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• Updated resource for java performance tuning

  - by JVA

  Can anyone recommend a web site that includes up to date performance tips for Java? Most of the sites I have found seem to be old and I guess the newer versions (1.5 - 1.7) may have obsoleted some recommendations.

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• How to convert degree minutes second into decimal in java

  - by satya

  In my java application i am having latitude information in this format 28"41'44.13597 . My need is to convert the same information into 28.705450. Please help through code or any references Thanks in advance

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