Recent questions tagged JAVA

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java - How to validate sql query syntax?

java 1.4 Sql server 2000 i am taking input of sql query (for validation of field value against values ... select district code from districts 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 - Reduce delay when playing rtp stream with libvlc on Android

I am using LibVLC version 3.0.0 to play incoming mpeg2ts stream over rtp on Android. The code is the following: ... do it in the first place? 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 are two empty ArrayLists with different generic types equal?

I have a doubt regarding how equals() method works for ArrayList. The below code snippet prints true. ArrayList< ... Why does it print 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 - How to read properties file placed outside war?

I'm working on a web application these days. That uses only jsps and servlets. It's a small application. Right ... war. How can I achieve 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 - How to fix exception: Failed to instantiate SLF4J LoggerFactory?

I am trying to write a java web crawler for semantic web using jena library. I have build project using ... and slf4j-log both libraries. 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 InvokeLater cause my JFrame not to display correctly?

Ok I've read an searched all over the web, and I've not found the solution to my problem yet, perhaps I'm ... I call sleep? That is the issue. 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 access RecyclerView ViewHolder with Espresso?

I want to test the text contained in each ViewHolder of my RecyclerView: @RunWith(AndroidJUnit4.class) public class ... wanted to test.... 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 - osgi: Using ServiceFactories?

I'm currently trying to get a simple bundle containing a Service Factory running. This is my factory class: public ... what I'm doing wrong? 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 unmarshalling multiple XML elements into single class

I have the following XML structure, which is modelling a single concept across multiple XML elements. This format is ... (MOXy) might help :) 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 - Libgdx light without box2d

I just started creating a game using libgdx. It is a top down 2d shooter using scene2d ui. Now i thought, ... box2d bodies/world...? 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 - Reading multiple Scanner inputs

What I am trying to do is have multiple inputs that all have different variables. Each variable will be part of ... = dd.nextInt(); } } See Question&Answers more detail:os...

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

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307 views

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java - How to get font color using pdfbox

I am trying to extract text with all information from the pdf using pdfbox. I got all the information i want, ... help me. 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 - Why is -server option there when server VM is the default option?

The help menu for java command says that -server option is to select the "server" VM. It also states that ' ... build 25.191-b12, mixed mode) 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 Use ZXing C# Port

NOTE: My original question was about whether the ZXing C# port is reliable, but here, I'm trying to figure ... this issue in the ZXing group. 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 implement Client <-> Server <-> Database architecture in an Android application?

I am making an Android application. Since it is so simple, I first thought I could simply eliminate the ... from the client application? See Question&Answers more detail:os...

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

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516 views

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java - How do I add a value to items in a ComboBox in JavaFX

How can I add a value to items in a combo box so when the user selects an item from the ComboBox I am able ... 'the price for that animal cost' 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 - JavaMail - Parsing email content, can't seem to get it to work! (Message.getContent())

For a few weeks I have been developing a email client for android, I have been ignoring parsing email content ... am going wrong? Thanks, Rhys 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 - JPanel keylistener

I am trying to add a key listener that holds a JTabbedPane. It should switch the tabs ... genericTabbedPanel.addKeyListener(ctrlTabListener); 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 - How do I get FutureTask to return after TimeoutException?

In the code below, I'm catching a TimeoutException after 100 seconds as intended. At this point I would expect ... (); return; } } 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 - Grizzly and Jersey standalone jar

I am trying to package Grizzly with Jersey as a single jar using Maven shade plugin. But I always get the ... plugin to include anything else? See Question&Answers more detail:os...

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

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157 views

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java - Why does this compile in Java7 and does not in Java8?

Generics are tricky. And looks like they are treated differently in different versions of Java. This code ... versions of Java compiler. See Question&Answers more detail:os...

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

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195 views

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java - spring data rest with composite primary key

I use spring data rest for crud. But when the entity has composite primary keys, I dont know how to to ... primary keys as other normal entity? 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 - SSL Server socket want auth option

Concerning SSLServerSocket.setWantClientAuth: If this is set to true if the client chooses to not send a certificate ... case of this setting? See Question&Answers more detail:os...

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

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264 views

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java - With ThreadPoolExecutor, how to get the name of the thread running in the thread pool?

I'm using a ThreadPoolExecutor in Java to manage a lot of running threads. I've created my own simple ... this? Thanks for any suggestions! 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 - ScheduledExecutorService - Check if scheduled task has already been completed

I have a server side application where clients can request to reload the configuration. If a client request ... the configuration is reloaded ? See Question&Answers more detail:os...

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

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113 views

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java - Mapping restful ajax requests to spring

I have this piece of code: @RequestMapping(value = "/test.json", method = RequestMethod.GET) @ResponseStatus(HttpStatus ... I'm doing wrong? See Question&Answers more detail:os...

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

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111 views

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java - How to set dynamically a bean reference in Spring?

<bean id="Mybean" class="Bean"> <property name="config" ref="dev"/> </bean> <bean id="dev" class="Dev"> ... ? Note: Spring version is 2.0.1 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 - Jackson custom annotation for custom value serialization

I'm trying to create custom jackson annotation that would affect serialization value. Meaning: class X { @Unit("mm" ... How can I achieve that? See Question&Answers more detail:os...

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

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