Recent questions tagged java

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java - Why do two programs have forward referencing errors while the third does not?

The following does not compile, giving an 'illegal forward reference' message: class StaticInitialisation { ... InstanceInitialisation1 does? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - org.xml.sax.SAXParseException: Premature end of file for *VALID* XML

I am getting very strange "Premature end of file." exception for last few days on one of our servers. The ... highly appreciated! TIA, - Manish See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to refactor variable type in Eclipse?

I want to refactor code like this: int x=4; int y=x; System.out.println(y); How can i do this automatically in ... y=x; System.out.println(y); ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - IntelliJ IDEA - caret behavior

I am trying to figure out one thing in IntelliJ IDEA 10: current caret position where caret moves after ... be Is such setting possible? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Mockito verify after exception Junit 4.10

I am testing a method with an expected exception. I also need to verify that some cleanup code was called ( ... Any idea why thats happenning? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to execute one task every hour?

I have been developing an Android application and I need to execute 1 task every hour. I uses the following code ... , tell me. Thank you. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Redirect System.out.println to Log4J, while keeping class name information

I have some libraries that are calling System.out.println on me, I'd like to redirect them through log4j ... -logging-with-the-calling-class See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Implementing long polling in an asynchronous fashion

Is it possible to take an HTTPServletRequest away from its thread, dissolve this thread (i.e. bring it ... in terms of concurrent connections. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Best way to accomplish inter-activity communication in an Android TabHost application

Here's the deal: I have an Android application that needs to call a web service every X seconds (currently 60 ... go back to the service model. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - JNI memory management using the Invocation API

When I'm building a java object using JNI methods, in order to pass it in as a parameter to a java ... the subject of proper memory management. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Replace Unicode Control Characters

I need to replace all special control character in a string in Java. I want to ask the Google ... /documentation/webservices/?hl=fr#BuildingURLs See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Using javax.sound.sampled.Clip to play, loop, and stop multiple sounds in a game. Unexpected Errors

I'm trying to play two wav sounds at once during a game (Background Music and an effect). I first constructed this ... (){ myClip.stop(); } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Writing a large ResultSet to a File

I'm tryin to write a large ResulSet (~1mm rows) to a single file. Is there a preferred/efficient way to do this in Java 1.6? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - ArrayIndexOutOfBoundsException : too much data for RSA block

I have some problem with my android application. I am trying to an app related with RSA encryption/decryption. ... , Base64.DEFAULT); } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Signing android app throws IOException: Redundant length bytes found

We're working on a Cordova app and having difficulty signing the Android version of the app. Using the command ... all use the same Java lib See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to represent nested data in a Primefaces datatable?

Here is my model : User.java public class User { //... public List<User> getFriends() { // ... } } I ... is the final solution I came up with. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Filter list contained in entity returned by jpa/hibernate query

I have a simple jpa entity 'ApplicationForm' with a one to many list in it: @OneToMany(cascade=CascadeType. ... code supplied is enough. thanks See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - static synchronized and non static synchronized methods in threads

can any one explain the statement ..."static synchronized method and non static synchronized method will not block each ... at the same time" See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Flip a card animation

I'm trying to flip a coloured rectangle. Is it possible to use the rotateTransition to do this? I have ... the rotateTransition class for this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - JDBC driver MS Access connection

I want connect my MS access file with Java GUI program,but I have problem with connection.... I have ... found and no default driver specified See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Parsing raw HTTP Request

I working on HTTP Traffic Data set which is composed of complete POST and GET request ... FB018FFB06011CFABD60D8E8AD58CA21 Connection: close See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Finding the position of search hits from Lucene

With Lucene, what would be the recommended approach for locating matches in search results? More specifically, ... overall approach though... See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Preventing WebView reload on Rotate - Android Studio

When I rotate my screen, the WebView reloads the whole page. So I disabled rotation in Android_Manifest.xml file, ... .INTERNET" /> </manifest> See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Monitoring progress using Apache Commons FTPClient

I have a simple FTPClient class that downloads files form an FTP server. I also need to monitor progress of ... download progress? Thanks, Anon. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - PDFBox: How to "flatten" a PDF-form?

How do I "flatten" a PDF-form (remove the form-field but keep the text of the field) with PDFBox? Same question ... pdf"); pdDoc.close(); } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Switching between 2 layouts in android activity

I have 2 different layout files that I want to use for modifying the same data, I was to switch to my ... .onOptionsItemSelected(item); } } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to parse JSON file?

Simple situation - read a json file discover all key-value pairs compare key-value pairs I tried gson, package ... advise that am i missing. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Hibernate generating SQL queries when accessing associated entity's id

I have Hibernate Entities that look something like this (getters and setters left out): @Entity public class ... of this incorrect behaviour? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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