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• Creating PDF, HTML, and optionally RTF documents from the same source using Java?

  - by Jared

  I was looking at using iText to create both a pdf and html version of a document with RTF as a possible option. According to this question this is no longer possible with iText. Is there a library that will allow me to create a document in Java and output it as both PDF and HTML? The ability to output RTF would be nice but is not required.

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• How do I increment a variable to the next or previous letter in the alphabet in Java?

  - by raleighJ

  I'm relatively new to Java coding, and was looking for some help. I have a capital letter defined in a variable string, and I want to output the next and previous letters in the alphabet. For example, if the variable was equal to C, I would want to output B and D. Thanks in advance for any help.

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• Does the for foreach construct in java create a hard or soft copy?

  - by Doug

  Say I have the following piece of java code ArrayList<Double> myList = new Double[100]; for (Double x : myList) x = randomDouble(); Does this actually modify myList or just the dummy variable? I realize I should just try this code segment out, but I think this is the sort of thing I should be able to google or search for on this site, and several queries so far have turned up nothing useful.

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• How to check if a given Regex is valid? (Java)

  - by Philipp Andre

  Hi folks, I have a little program allowing users to type-in some regular expressions. afterwards i like to check if this input is a valid regex or not. I'm wondering if there is a build-in method in Java, but could not find such jet. Can you give me some advice? Best regards Phil

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• Can anyone provide Java program for btree or b+tree???

  - by rohit

  Hi, I am doing a project in which i require btree or b+tree data structure. but its not an important part of project. it would take my time to write a code for it. I googled it but didn't get anything.... So, can anyone provide java code for btree or b+tree implementation (with insert, delete, search algorithms)?????? it should accept string as input and form btree or b+tree of these string.

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• How to cache *any* object type to memory/disk in java?

  - by Blankman

  Is there a generic way to cache any type of object (be in a java class, or a word document etc.) to memory or disk? Is simply serializing the object, and retaining the file extension (if it has one) enough to rebuild the object?

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• Can we call methods of non-static classes without an object in Java?

  - by ask

  In Java, the wrapper class Integer has the static method parseInt() which is used like this: Integer.parseInt(). I thought only methods of static classes could be called like this (ie. Class.doMethod()). All non-static classes need objects to be instantiated to use their methods. I checked the API, and apparently Integer is declared as public final Integer - not static. Someone please help me understand this.

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• Any way to force classes to have public static final field in Java?

  - by serg555

  Is there a way to force classes in Java to have public static final field (through interface or abstract class)? Or at least just a public field? I need to make sure somehow that a group of classes have public static final String TYPE = "..."; in them.

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• Tool for converting subset of PHP code into Java/Scala/Groovy?

  - by Alex R

  Do any exist? Ideally it would also come with a library of basic PHP functions. I have a bunch of simple PHP scripts (no extensions, no fancy dynamic hacks, etc) I'd like to convert to Java... It would be great if a tool could do 80% of the work while I do the other 20%.

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• Where to use Inner Class in professional java developement life?

  - by abc

  Where to use Inner Class in professional java developement life? Please explain.. googling didn't wrk efficiently..

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• Why do contains()/indexOf() in a Java collections use o.equals(e) and not e.equals(o)?

  - by Fernando

  Why are the methods contains() and indexOf() in the Java collections framework defined using o.equals(e) and not e.equals(o) (where o is the argument of the methods and e is the element in the collection)? Anyone know the reasons of that?

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• Do different JDK Updates produce different Java byte code?

  - by Bernhard V

  A hypothetical scenario: I've got a project whose source compliance level is specified to 1.5. Now I compile this project with two different JDKs: At first with JDK 6 Update 7 and then with JDK 6 Update 20. Do these two different JDKs produce different Java byte code, although they only differ in their Update version?

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• How can I create a bar in the bottom of a Java app, like a status bar?

  - by paintrick

  I am in the process of creating a Java app and would like to have a bar on the bottom of the app, in which I display a text bar and a status (progress) bar. Only I can't seem to find the control in NetBeans neither do I know the code to create in manually. Thank you so much for helping! Paintrick

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• How can I add files to java app in android so I can get it path?

  - by masterkapu

  I want to add files to java app in android so I'll know their path and can access them. How can I do it? (It doesn't matter where they will be the most important is that I can access them and I'll know the relative path of the them)

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• How to check if an Object is a Collection Type in Java ?

  - by Tony

  By using java reflection, we can easily know if an object is an array. What's the easiest way to tell if an object is a collection(Set,List,Map,Vector...)?

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• Does the List in .NET work the same way as arraylist in Java?

  - by eflles

  When I learned Java, I was told that the arraylist works this way: It creates an array with room for 10 elements. When the 11th element is added, it is created a new list with room for 20 elements, and the 10 elements are copied into the new array. This will repeat as until there are no more elements to add, or to a maximum size. Is the List in .NET constructed the same way?

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• Can I use a static variable from a Java class in res/values/styles.xml?

  - by neu242

  I want to refer to a static Java variable in my styles.xml, is that possible? Here's a pseudo-xml example: <style name="Artwork"> <item name="android:background">@drawable/border_{Constants.MY_COLOR}</item> </style>

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• What is the best way to go about obscuring Java code?

  - by Waltzy

  Well, I'm planning on releasing a Jar into the world but would prefer if the code was not readably available to anyone with a Java Decompiler as I want to control access to the program with usernames / auth codes etc. After some Googling I haven't found any software to do this for me, so I was wondering what steps to take from here; if anyone can point me at any software or information on methodologies of obscurification I would be grateful. Cheers again Stack Overflow.

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• How does Garbage Collection in Java work with classes?

  - by Bright010957

  I asked a question about Garbage Collection in Java in this topic. But the answer I got, gave me another question. Someone mentioned that classes can be collected by the garbage collector to. Is this true? And if it is true, how does this work?

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• Can I run a webpage-embedded Java Applet on the iPhone's web browser?

  - by Warlax

  Can I run a Java applet that's been embedded in an or HTML tag on an iPhone? I don't mean as an App but actually through its browser.

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• Why can't your switch statement data type be long Java?

  - by Fostah

  Here's an excerpt from Sun's Java tutorials: A switch works with the byte, short, char, and int primitive data types. It also works with enumerated types (discussed in Classes and Inheritance) and a few special classes that "wrap" certain primitive types: Character, Byte, Short, and Integer (discussed in Simple Data Objects ). There must be a good reason why the long primitive data type is not allowed. Anyone know what it is?

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• How to find and kill running Win-Processes from within Java?

  - by GHad

  Hi, I need a Java way to find a running Win process from which I know to name of the executable. I want to look whether it is running right now and I need a way to kill the process if I found it. Thank you! Greetz, GHad

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• Why right click is not working on java application?

  - by Nitz

  Hello Guys, I had made one Java Swing based application. On my application,if i click anywhere on the JFrame or anything, then my right click is not working? i had not set anything like that..then why is not working? Basically my key board was not working then i try to copy - paste data using mouse then, i came about to know that...my right click is not working on any area of my application...

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• Is Maven 1.0.2 compatible with Java 5?

  - by hdk

  I'm working on an upgrade project and build management is done in Maven 1.0.2. Java version will change to J2SE 5. Please include in your answer if you have first hand experience on that particular combination (Maven 1.0.2 and J2SE 5) Thanks hdk

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• How-to delete indexes in Google App Engine (Java)?

  - by Antonio

  Is there a way to delete unused indexes in Google App Engine Java application? The only one way I was able to find is to create an empty Python GAE application and run the following command: appcfg.py vacuum_indexes /path/to/myapp/ Is there a more intelligent way?

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