Recent questions tagged Java

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java - A class that behaves like @Entity and @Embeddable

I have a one way @OneToMany relationship between a Team and Player class. I would like to save a Team ... 's compound primary key regards, 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 - Android - getting the current rotation of a matrix

I need to be able to set the rotation of a matrix rather than add to it. I believe the only way to ... matrix needs to retain its information. 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 - Read Notification Bar title, message using Accessibility Service Programmatically

Using Accessibility Service I am being able to read notification bar title & message, the issue I am facing is when ... : What are you doing) 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 it possible to use jsp variable value to initialize JQUERY variable?

I have some questions which are as follows: How can I use the JSP variable/array in JQUERY code? Here what ... guide me to achieve this task. 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 type B cannot be a superinterface of C; a superinterface must be an interface" error

Let's assume I got this interface A: interface A { void doThis(); String doThat(); } So, I want some ... or should I do other way round? 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 implement a pagination in Struts 2

How can I implement paging in Struts 2 for the client side display and Hibernate as the persistence layer. ... this without display tag? 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 - send mail to Gmail account

I am sending mail from my Java app to Gmail Account. I had used the Java Mail API and it worked fine. But ... tell me what could be the problem? 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 - Android creating and writing xml to file

I'm taking a course on android app development and trying to create and write an xml file to the internal storage on ... + e.getMessage()); } } 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 - ActionBarSherlock & HoloEverywhere - Forcing Overflow?

I have a simple question. For my android app, I'm planning on using the ActionBarSherlock and HoloEverywhere ... manually do it myself? 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 - Android - Get List of supported Locales

I have to implement AutoComplete TextView for all the supported locales of Android Device. I tried the following: public ... help me friends.... 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 - Inheritance and Object creation, Theoretically and in Real

Lets say I have a class A.java, When I will execute a constructor method of A, it will create a memory ... object whenever we hit new 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 - How does the Command pattern decouple the sender from the receiver?

The Command pattern has an IReceiver interface with few methods and corresponding to each method there are concrete ... on the receiver object. 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.hibernate.MappingException: Repeated column in mapping for entity

I am doing a simple Poll system. I have 2 tables: Person: ID, Name, Surname Vote: ID, Vote (Boolean), ... with insert="false" update="false") 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 - Check whether a key exists or not in a nested JSON

I am stuck in a situation where I need to check whether a key exists in a nested JSON object. By nested JSON Object ... ; } } } return exists; } 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 - Hadoop Hive unable to move source to destination

I am trying to use Hive 1.2.0 over Hadoop 2.6.0. I have created an employee table. However, when I run ... I need to set? 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 - How to wire in a collaborator into a Jersey resource?

I have a method to start up my application: public void start() throws IOException { final Map<String, String> ... how do I wire them together? 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 - Inject HttpServletRequest in CDI SessionScoped bean

I've got a session scoped CDI bean, and I need to somehow access the HttpServletRequest object in this ... CDI bean's @PostConstruct method? 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 I add an attachment to a response payload in Spring-WS?

I'm building a Web Services server that's designed to share content. I'd like to serve the content through a ... what I'm asking about 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 - Fast counting of 2D sub-matrices withing a large, dense 2D matrix?

What's a good algorithm for counting submatrices within a larger, dense matrix? If I had a single line of ... search time for several matrices. 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 int Instead Of String: public static void main (int[] args)

I was under the impression that the main method had to have the form "public static void main (String[] args){}", ... .out.println(n[0]);}; } 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 - Changing JList row color at runtime

I am trying to change JList rows dynamically. I need change nth row colour, highlight it(n is unknown during compilation ... best way to do so? 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 - Changing the login service URL in spring security

Hi I have implemented Spring security in my spring boot web application with JWT filters. But the default ... to /rest/auth/login 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 get frequently occurring phrases with Lucene

I would like to get some frequently occurring phrases with Lucene. I am getting some information from TXT files, ... approach is not efficient. 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 - Specify JAXB Packages in SLSB and JAX-WS

I am creating a simple SOAP web service using a SLSB and JAX-WS annotations. The objects I would like to pass ... 1. Thanks for the help! Steve 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 access the application using selenium webdriver that works through VPN?

For example, I have an application "www.test.com", to access this site I have installed browsec ... applications through Selenium webdriver? 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 Practice on Configuring Log4j Properties Path

I am using Log4j in my applications. log4j.properties is placed in a Jar which is in classpath. This ... could be the better approach. 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 - MD5 Signing a HttpServletResponse

I'm looking for a way to inspect the contents of a HttpServletResponse to sign them with a MD5 hash. The ... header. } Is that 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 - Slowness in Eclipse Juno (4.2)

I've had some issues with slowness switching tabs in Eclipse 4.2 Juno and was hoping someone might have ... :MaxPermSize=256m -XX:+UseParallelGC See Question&Answers more detail:os...

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

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