Recent questions tagged Java

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java - How to make a RadioButton look like regular Button in JavaFX

I'm implementing a toolbox-like pane, so user can only pick one tool at a time, and I switched from Button ... know how can I accomplish 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 - ANTRL4: Can't get Python ANTLR to generate a graphic of the parse tree

I have a simple HelloWorld.g4 grammar (see it at the bottom). I am able to successfully generate the .py files using this ... : [ ]+ -> skip ; 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 - ZipInputStream getNextEntry is null when extracting .zip files

I'm trying to extract .zip files and I'm using this code: String zipFile = Path + FileName; FileInputStream fin ... .close(); input.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 - Cyclic inheritance and interfaces - class A can't implement class B interface while class B implements A interface

I have: public class A implements BListener { public interface AListener {} } public class B implements AListener ... me on Android development. 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 - Programmatically click a webpage button

How to programmatically click a webpage button in Java? Given this button: <div id="titlebutton" >Button</div> ... I pasted the function code? 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 can i put a JButton on an image?

I am trying to fix a JFrame where there will be a background image and on the image JButtons which will do ... (dimension); return button; } 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 - Get Server IP address from JSP Request/session object

How can I get the IP address of the server from a JSP page? Right now, all I can do is request.getLocalName ... server name, not the IP address? 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 - Order guarantees using streams and reducing chain of consumers

So as it goes in the current scenario, we have a set of APIs as listed below: Consumer<T> start(); ... to the callees to perform tasks? 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 initialize an array of objects?

I just looked at this SO Post: However, the Columbia professor's notes does it the way below. See page 9. Foo ... notes version there isn't []. 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 - JAXB unmarshaling Ignoring the SOAP Envelope/Header tags

I have a client I am building for accessing a web service. I am using some JAXB generated classes( ... getCurrentDataVer1Result = value; } } 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 - Opening files with JFileChooser

As a little side project I'd thought it would cool to make a text editor. I'm currently stuck on opening ... another method that works the same? 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, automatically persist dependant objects

I'm quite new to Hibernate and have been trying to determine what it will do for you and what it ... Hibernate that comes with Netbeans. 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 - Selenium Webdriver: How do I run multiple tests, one after the other in the same window?

My goal is to have a series of tests run one after the other. I would like to have a "login" script log the ... { acceptNextAlert = true; } } } 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 - programmatically checking for open connection in JDBC

How do I check for an open connection in jdbc for oracle database? Note: conn.isClosed() cannot be used 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 - The method form(Class<T>) from Form class is deprecated in Play! Framework

I spent a lot of time trying so solve this problem, and searching the method to substitute this one, without ... method? 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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386 views

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java - Is there a way to expose Hibernate Entities as RESTful resources without DTOs?

I am developing a simple webapp which exposes the domain model as RESTful resources. I am planning to use ... (un)marshall Hibernate entities? 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 - JSch multiple tunnels/jumphosts

I'm not sure if this is caused by using a private key instead of password for the port forwarding but here ... with JSch or port forwarding? 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 - SparkContext setLocalProperties

As continuation of this question, could you please tell me what properties I can change from SparkContext. ... cores, RAM etc? See Question&Answers more detail:os...

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

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318 views

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java - What is the event dispatching thread?

I know what "thread" means and if I understand the event dispatching thread (EDT) as "just a thread", it ... from other threads in this way? 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 do you get RequestMapping request in AOP advice from a Spring controller?

Given some kind of controller with a request mapping @RequestMapping(value="/some/path", method=RequestMethod.POST) ... a POST request. 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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391 views

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java - How to include hbase-site.xml in the classpath

I am currently trying to get my HBase code to use the settings specified in my hbase-site.xml. It seems to ... config file. 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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java - Serializing over HTTP correct way to convert object

I'm trying to serialize an object and send it over HTTP. I'm using a few tutorials as most deal with ... class object? Any help appreciated! See Question&Answers more detail:os...

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

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525 views

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java - Inherit javadoc, without generating docs for inherited source

I would like class B to inherit the Javadoc from an interface that it implements, interface A. I have included ... page. Is this 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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266 views

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java - Swing application initialization and loading screen approach

I have made quite a lot of various Swing apps and their loading time usually vary between just a few seconds ... be updated together with text. See Question&Answers more detail:os...

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

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301 views

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java - PostgreSQL + Hibernate + Spring auto create database

I'm working with PostgreSQL and Spring 4 and want my app auto create database when it running. My Entity ... Hibernate to auto create database? See Question&Answers more detail:os...

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

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483 views

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java - Message is received from Google Pub/Sub subscription again and again after acknowledge[Heisenbug]

I would like to notice that the scenarion I will describe happen rare enough and in most cases everything works as ... it and fix 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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258 views

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java - Sorting an array while moving duplicates to the end?

This was a question in one my friend's programming class. Q. How do you sort an array of ints and then ... gave a wrong advice. Any thoughts? 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 Data Rest (SDR ) bug? Persistent Entity Must not be null

Currently I am working on a POC for Spring Data Rest. Trying to get workable JSONout of a repository. I have an ... , or am I missing something? See Question&Answers more detail:os...

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

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