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• What kind of OCR java library should i use in Android?

  - by systempuntoout

  I would like to build an app that OCR a pictures and get text from them. What java library should i use?

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• .NET Client with Java WebService - "(501) Method OST is not defined in RFC 2068 and is not supporte

  - by Yon

  Hi, We've got a .NET client calling a Java WebService hosted on Glassfish. Sometimes, for no clear reason, we get the error stated above. It appears that the first letter of the method ("P" of "POST") is dropped somehow. This is not consistent though, so we have no idea how to reproduce it. The communication is done over SSL. Any ideas? Thanks, yonadav

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• Best book/ tutorial to learn/implement web services using java, xml and spring.

  - by Ankush

  Hi, I am a newbie to web-services. What is a good way to learn web-services implementation using java, xml and spring? Are there any good books which cover this topic in good width? Or, are there any online resources, tutorials, etc.? Also, what would be good projects to understand this hands-on? Any recommendations?

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• java: how can i set the compatibility mode of a native .exe?

  - by Jakob

  So i have a native executable (both for OS X and Windows) tucked inside a .jar, which is then programatically extracted to a temp location and executed from there. Unfortunately this executable will not run properly on my Windows machine (Win 7 64bit), when i manually set the compatibility mode to a Windows XP preset however, it will work. Is there a way i can do this programatically from Java?

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• Is a Java static block equivalent to a C3 static constructor?

  - by Mackenzie

  What is the real difference between a C# static constructor and a Java static block? They both must be parameterless. They are both called only once, when the related class is first used. Am I missing something, or are they the same thing, just with different names?

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• Can I put java code inside the .jrxml (jasperreport)?

  - by spderosso

  Hi, Can I put java code inside the .jrxml? For example, I want to put an if() or a "new ..()" Is it possible? How? Thanks

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• How to increment a java String through all the possibilities?

  - by dacracot

  I need to increment a String in java from "aaaaaaaa" to "aaaaaab" to "aaaaaac" up through the alphabet, then eventually to "aaaaaaba" to "aaaaaabb" etc. etc. Is there a trick for this?

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• Most idiomatic way to print a time difference in Java?

  - by Zombies

  I'm familiar with printing time difference in milliseconds: long time = System.currentTimeMillis(); //do something that takes some time... long completedIn = System.currentTimeMillis() - time(); But, is there a nice way print a complete time in a specified format (eg: HH:MM:SS) either using Apache Commons or even the dreaded platform API's Date/Time objects? In other words, what is the shortest, simplest, no nonsense way to write this in Java?

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• how to remove the <br/> using regex in java?

  - by androidbase Praveen

  how to get value without <br/> tag using regex n java? my String is: <Div> West Newton, MA 02465 <br/>USA </Div> output should be like: West Newton, MA 02465 USA How?

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• How to determine if a List is sorted in Java?

  - by FarmBoy

  I would like a method that takes a List<T> where T implements Comparable and returns true or false depending on whether the list is sorted or not. What is the best way to implement this in Java? It's obvious that generics and wildcards are meant to be able to handle such things easily, but I'm getting all tangled up. It would also be nice to have an analogous method to check if the list is in reverse order.

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• How to detect and replace non-printable characters in a string using Java ?

  - by Frank

  For instance I have a string like this : abc123[*]xyz[#]098[~]f9e [*] , [#] and [~] represents 3 different non-printable characters. How can I replace them with "X" in Java ? Frank

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• Java Google App Engine Datastore: 'IN' operator available on JDO query filters, as with Python?

  - by Jim Blackler

  This page describes an 'IN' operator that can be used in GAE Datastore to compare a field against a list of possible matches, not just a single value: However this is for Python. In Java (App Engine 1.2.5), trying query.setFilter("someField IN param"); on my javax.jdo.query fires a JDOUserException 'Portion of expression could not be parsed: IN param'. Is there a way this can be done?

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• What is the difference between serialization and synchronization in java?

  - by androidbase Praveen

  What is the difference between serialization and synchronization in java? I need an explanation or a tutorial.

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• What is a simple way to get ACID transactions with persistence on the local file system (in Java)?

  - by T.R.

  I'm working on a small (java) project where a website needs to maintain a (preferably comma-separated) list of registered e-mail addresses, nothing else, and be able to check if an address is in the list. I have no control over the hosting or the server's lack of database support. Prevayler seemed a good solution, but the website is a ghost town, with example code missing from just about everywhere it's supposed to be, so I'm a little wary. What other options are recommended for such a task?

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• How can i combine crystal reports and JAVA SWT?

  - by Armin

  I have to create reports from my application (java, swt). For reports i am using crystal reports, but i have problem, i can't find SWT code that enables me to open (create) and save report. I have found Swing code that enables me to do that, but i cant find SWT code. So can somebody explain me, or give me code, or tutorial that will help me to to that. Tnx.

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• What are the best ways to convert MS word file to image or pdf preferably using java?

  - by Vaibhav Kamble

  I want to convert MS word formatted documents to images and pdf. I am well versed with Java. I was looking for apis using which I can do the same. Can anyone please point me to that ? If you know the best alternatives even though they are for other languages , please update me about that.

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• How to retrieve forbidden characters for filenames, in Java?

  - by Gnoupi

  There are some restricted characters (and even full filenames, in Windows), for file and directory names. This other question covers them already. Is there a way, in Java, to retrieve this list of forbidden characters, which would be depending on the system (a bit like retrieving the line breaker chars)? Or can I only put the list myself, checking for the system?

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• Is it possible to develop IPhone applications with Java?

  - by Wing C. Chen

  I accidentally bumped into an ad like this: http://monotouch.net/DownloadTrial?ref=so1. Then I start to wonder if we have an equivalent thing in Java. From my understanding, objective c is still the only language that people use to develop iPhone apps. Is this true?

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• What's a good library for parsing mathematical expressions in java?

  - by CSharperWithJava

  I'm an Android Developer and as part of my next app I will need to evaluate a large variety of user created mathematical expressions and equations. I am looking for a good java library that is lightweight and can evaluate mathematical expressions using user defined variables and constants, trig and exponential functions, etc. I've looked around and Jep seems to be popular, but I would like to hear more suggestions, especially from people who have used these libraries before.

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• How to sort a Map<Key, Value> on the values in Java?

  - by Abe

  I am relatively new to Java, and often find that I need to sort a Map on the values. Since the values are not unique, I find myself converting the keySet into an array, and sorting that array through array sort with a custom comparator that sorts on the value associated with the key. Is there an easier way?

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• How to refresh external Jars in eclipse project (Java)?

  - by user299535

  Hi all, I have a java project in Eclipse which includes a couple of external jar files. These external jar files are being rebuilt through a different process (not eclipse, ant). Those changes are not being reflected on the eclipse project even if I refresh the project. If I close the project and reopen, it works. Any suggestions on how I could expedite the project without having to close and reopen? Thanks, Praveen.

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• I have to implement Encryption using 3DES in java . I am new to it. Please suggest

  - by Erick

  I have to implement 3DES encryption using 3DES in java. As I am new to this. Could you please suggest and provide good samples to proceed.

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• Which logger framework in java shall one use based on performance and consistency criterion?

  - by Vaibhav Kamble

  Which logger framework in java shall one use based on performance and consistency criterion? I need to use it in highly concurrent application and do not wish to use any log wrappers. Please suggest based on these requirements. -Vaibhav

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• Why is the synchronized keyword in Java called 'synchronized' instead of the more precise 'mutex'?

  - by Edward D'Souza

  I've heard that choosing to use the word 'synchronized' to describe mutexed statements is simply a mistake in Java, but I'm wondering if there is actually a reason behind the choice.

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• [Java Stripes] How can I use List of object with Stripes "option" tag ?

  - by cscsaba242

  Hello, I have a List of object, produced by JPA q.getResultList(). I would like to use it in a drop down, but Stripes "option" tag cant accept List, just Collection, Enum and Map. Im new to Java, that why perhaps the List can translated to each of them but I dont know how can I solve this issue. (Stripes select,option-map,-enumeration, -collection can build up a drop down from previous mentioned input object structures ) Thanks advance

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