Recent questions tagged JAVA

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I have created a database named 'movie_db', set default schema to APP. Then created a sample table named ' ... is to set schema explicitly. 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 - Whats the equivalent of JPanel in JavaFX

I'm still learning and experimenting with GUIs in JavaFX and I cant seem to get the "look" that I'm ... trying different layouts, no luck still 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 - Variable argument constructor _may_ conflict, but compiles

I have two constructors that compile just fine but I'd expect Java to complain about the possibility of ambiguity. ... values){ } What gives? 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 - Spring Batch - Is it possible to have a dynamic column in FlatFileReader?

I'm dealing with many CSVs files that don't have a fixed header/column, saying that I can get file1.csv ... Object? What do you think? 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 - Converting String to Pointer for JNA

I'm trying to use JNA to query the effective permissions for a file in Windows. Eventually, I plan on using the ... 'd still like to hear it. 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 - Is there any other way to remove all whitespaces in a string?

I have a programming homework. It says that I need to reverse the string first, then change it to uppercase and then remove ... ("\s", "")); } 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 - IOException - Access Denied Using FileOutputStream

I get the following IOException : java.io.IOException: Access is denied at java.io.WinNTFileSystem.createFileExclusively( ... in Windows XP. 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.openqa.selenium.remote.UnreachableBrowserException: Could not start a new session. Possible causes are invalid address of the remote server

My selenium code does not run. Keeps throwing me the following error: Exception in thread "main" org.openqa.selenium ... TimeUnit.SECONDS); } } 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 serialize for android.location class?

I'm trying to serialize my location class (using android.location class) but, it gives me an error! 11-21 21: ... return data; } why this error? 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 correctly emit values to Sink from multiple Fluxes (WebsocketSession::receive) in Spring WebFlux?

In my simplified case I want to broadcast a message sent by WebSocket client to all other clients. The ... done with synchronized keyword). 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 - ZipException: invalid distance too far back error when running app

I have a GWT application which uses Resteasy as backend api/service, the project works properly, but when I ... it mean corrupted dependency? 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 - Why does ImageReader return incorrect BufferedImage?

I'm trying to access a animated GIF image with 21 frames and then read the 12th (cause it starts at ... correctly in reading the frames? See Question&Answers more detail:os...

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

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218 views

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java - default values for primitives

In Java, what would a variable of type int hold if it was not initialized (I know that it will not let me ... and how about int[] x; 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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358 views

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java - InputStream.getResourceAsStream() giving null pointer exception

The line persistenceProperties.load(is); is throwing a nullpointerexception in the following method. How can I resolve this ... 247) ... 1 more See Question&Answers more detail:os...

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

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344 views

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java - jaxb unmarshalling with namespace

This is my xml, need to convert it into java. I had used jaxb <?xml version="1.0"?> <lm:order Id=" ... , need to read as an XML String. 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 - Correct way to Integrate JAX-RS with CDI?

I used to integrate Service and DAO beans in Jersey REST resources by annotating them with @Path following Java EE ... and the Java is here 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 - Netbeans - Reading a data file in src folder

I have a scanner that's trying to read a file named info.data in the src folder.I get Exception in thread " ... I should put in the scanner? See Question&Answers more detail:os...

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

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305 views

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java - C# equivalent of creating anonymous class that implements an interface

I've recently started using C#, and I wanted to find an equivalent method to this. I do not know what this ... is actually called. 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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451 views

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java - Measure elapsed time between two MotionEvents in Android

I'm new in Android programming so I am asking for your help in my problem. I am trying to measure in seconds/ ... in my example ? 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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239 views

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java - LibGDX HelloWorld project crashes when run on Android emulator

I've been trying to get the Hello-World project to run as part of learning LibGDX. Using the Nightly Build (libgdx ... (622): ... 11 more See Question&Answers more detail:os...

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

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239 views

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java - Getting Error: Execution failed for task app:transformClassesWithMultidexlistForDebug

i've tried nearly everything at other topics but i have the same problem in my rss reader app. ... at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(Daemo...

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

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416 views

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java - log4j.properties not picked up from jar

I have a jar in the classpath of my server which contains the log4j.properties file on root of the jar for ... and same version of log4j jar See Question&Answers more detail:os...

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

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209 views

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java - How to return object from Callable()

I'm trying to return a 2d array from call(), I'm having some issues. My code so far is: //this is the ... good examples. EDIT: changed it a bit See Question&Answers more detail:os...

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

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345 views

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java - How to convert files from Dos to Unix

I am having several files which I want to convert from Dos to Unix. Is there any API or method which will help me to do 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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334 views

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java - How to order feature files in Cucumber test suite?

Currently, I have found that cucumber test suite runs the feature files alphabetically. Please let me know if ... might be missing. 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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322 views

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java - How update just specific cell in primefaces dataTable

I'm creating a dynamic datatable full of input fields. Sometimes when user insert values in some inputs, an ... was working to continue... See Question&Answers more detail:os...

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

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232 views

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java - Is JOptionPane.showMessageDialog thread safe?

JOptionPane.showMessageDialog is supposed to be a useful utility for getting user feedback as it blocks your current ... Is this the case? 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 - Catching exception thrown in AuthenticationProvider

I am implementing custom 'AuthenticationProvider'. If not authenticated I am throwing exception inside 'authenticate' ... Thanks in advance. See Question&Answers more detail:os...

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

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