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• How can I get two numbers that are written in a single line - is there a Split() method?

  - by Sergio Tapia

  I want to ask the user for input in console. He'll be writing down two numbers separated by a single space. In Java is there something like the C# Split() method I can use? Thank you!

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• No Secure Random Number Generators Available in JDK

  - by rwbutler

  Hi, I am currently running JDK 6 on Windows 7 and have installed the Unlimited Strength Policy Files. I wrote a Java app some time ago which used to work but now fails, giving an error message indicating that the SHA1PRNG SecureRandom is not available. I have tried printing a list of cryptographic providers available on the platform and it would appear that there are no secure random number generators available - does anyone have any idea why this might be? Many thanks in advance for your help!

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• Authentication with wget

  - by Llistes Sugra

  I am currently accepting the parameters login and password in my servlet, but logs are storing this info when using wget (as long as it is GET method, and apache is in the middle) Instead of this I want to enhance my servlet's authentication accepting: wget --http-user=login --http-password=password http://myhost/myServlet How can I read, in my servlet, the server side, the login and the password user is sending, in java code?

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• How to set Accept-Language header on request from applet

  - by Jo

  Hi, I'm not familiar with Java but I need to make a request to a remote webservice from within my applet. The webservice (.Net 1.1) uses HttpContext.Current.Request.UserLanguages[0] to determine the language to use. But the value of this member is alway null. So is there a way to pass the Accept-Language header along with something like "en-GB" set?

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• Format double value in scientific notation

  - by Daniel G. R.

  I have a double number like 223.45654543434 and I need to show it like "0.223x10E-3". How can I do this in Java?

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• RegEx Advanced : Positive lookbehind

  - by mpneuried

  This is my test-string: <img rel="{objectid:498,newobject:1,fileid:338}" width="80" height="60" align="left" src="../../../../files/jpg1/Desert1.jpg" alt="" /> I want to get each of the JSON formed Elements inbetween the rel attribute. It's working for the first element (objectid). Here is my ReqEx, which works fine: (?<=(rel="\{objectid:))\d+(?=[,|\}]) But i want to do somthing like this, which doesn't work: (?<=(rel="\{.*objectid:))\d+(?=[,|\}]) So i can parse every element of the search string. I'm using Java-ReqEx

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• Problem in using j2me polish with netbeans

  - by learn

  I have downloaded and installed the j2me polish successfully and i have tried to create the project but there is a reference problem showing that the specified folder does not contain the java platform but it is successfully working with normal project instead of polish which LWUIT to use?

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• Best beginner programming language?

  - by mtwisterr

  I want to learn a simple language so I can code simple things maybe eventually a game but I don't know where to start. I can code simple things using apple script but you can't do that much with that and it only works on macs. I have a mac and a dell so something that I could code and run on both would be nice. Also all my school offers is java so if you have any ideas on how to learn the language that would be appreciated. Thanks

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• How to group a database write and spreadsheet write in single "transaction"

  - by WhyGeeEx

  I have a Java program that writes results to both a DB (SQL Server) and a spreadsheet (POI), and it would be best if neither is written to if there's an error with either. It would be a lot worse if the spreadsheet was produced and then an error happened while saving to the DB, so I'm doing the DB-write first. Even so, I'm wondering if someone knows of a way to guarantee they both succeed or fail as a unit. Thanks!

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• openid consumer for gwt

  - by antony.trupe

  Anyone have or know of a java implementation of an openid relying party(consumer) for gwt/gae? openid4java and joid bring in too much baggage for my needs.

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• Jmockit in JBoss

  - by Filip

  In a jboss service I need to mock some inner class (not EJB) with JMockit. Just for tests I've created inner class ToBeMocked and another one Mock. While deploying to jboss I get error NoClassDefFoundError in line: Mockit.setUpMock(ToBeMocked.class, new Mock()); with message: java.lang.NoClassDefFoundError: mockit/Mockit jmockit.jar is added to the classpath in jboss_service.xml. Any ideas?

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• URI for local resources

  - by Anto

  In Java can I create a URI for a file located locally in the hard drive? If so, how should it be constructed?

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• jdbc connection pooling

  - by llm

  Can anybody provide examples or links on how to establish a JDBC connection pool? From searching google I see many different ways of doing this and it is rather confusing. Ultimately I need the code to return a java.sql.Connection object, but I am having trouble getting started..any suggestions welcome.

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• How convert flex Data grid values to CSV format file?

  - by R.Vijayakumar

  I am new beginner, is it possible the covert flex data grid to CSV file format with out use any backend (java,php ..) file ? . Because I tried with out use bankend . is it convert or not ? So any one give suggest me . or which is best method to convert ?

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• Write a PLIST file in Groovy

  - by Joe Cannatti

  I have a Groovy application for Windows and am trying to convert a Hash object to an Apple plist file. What is the best way to go about this? Seems like this is something that must already be solved in Java but I can't seem to find any examples. Thanks in advance

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• Jar Store - prevent from copying

  - by Vladimir

  We are going to create Jar Store the way like App Store works, but for Java Developers. Everyone will able to submit and sell custom .jar library which solves some little problem, but solves it very good to save other developer's work time. The only undecided question is how to prevent .jar copying or publishing bought .jar to the Net.

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• Class Cast Exception

  - by iaagty

  why do i get this exception? Map myHash = null myHash = (HashMap)Collections.synchronizedMap(new HashMap()); If i try to use this hashmap, i get java.lang.ClassCastException

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• How to random specific letters ?

  - by Ivan

  I've started writing some JAVA code and now I want to get a random letter from list of letters given so what should I use for this.

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• cached data base

  - by radi

  hi , in my project i need a tow tables each of it has about 2000 row , i want my application to be speed so my db should load into memory (cached) when the app start and before it close the db have to be saved on the disk . i am using java and i want to use sql

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• Format date in String Template email

  - by Gearóid

  I'm creating an email using String Template but when I print out a date, it prints out the full date (eg. Wed Apr 28 10:51:37 BST 2010). I'd like to print it out in the format dd/mm/yyyy but don't know how to format this in the .st file. I can't modify the date individually (using java's simpleDateFormatter) because I iterate over a collection of objects with dates. Is there a way to format the date in the .st email template?

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• Requirements to establish a connection with the database

  - by Zachary

  I am new to web development, I have to create a web application in Java using GWT that connects to a database and download a file from it. Regardless of the type of database, what does the web application need in order to create a connection with the database? E.g. an API

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• how to remove values from signed out attribute in documentum

  - by magh

  when check out done in documentum. how to remove values of "Signed Out To" attribute in documentum using java dfc api. when sysobj.cancelcheckout executed only unlock function done and removes the lock icon

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• Password Protected Excel File

  - by dhorn

  I have an excel spreadsheet that is password-protected. I need to open this spreadsheet and read the data from it. I've been attempting to use the POI API to no avail. A Java solution would be preferred but any ideas would be helpful. Edit: Yes, I have the password. Edit2: I am unable to open it with POI with the password, I am looking for an alternate solution.

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• Maven won't use public key to deploy

  - by magneticMonster

  I'm using SSH to deploy my Java artifacts to a server. I have the keys set up so that I can interactively SSH to the server without requiring a password, but when I try to run the "mvn deploy" or "mvn release:perform" commands, it hangs (at what I assume is the password prompt). My ~/.m2/settings.xml file contains the username for the server (because it is different than my local username) and references the id of the server that requires the different user.

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• How to create a custom Annotation and processing it using APT ?

  - by Dhana

  Hi, I'm new to Java Annotation. I know how to create custom annotation but I don't know how to process that Annotation to generate the dynamic code just like ejb 3.0 and hibernate does. I read some articles based on APT but no one gives the details about how to process the Annotation. Are there any tutorials with sample code for processing custom Annotations? Thanks

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