Recent questions tagged JAVA

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java - How to iteratively add Components to a Swing GroupLayout ParallelGroup?

Is there a way to iterate over a List of Components and add them to a ParallelGroup in Swing GroupLayout? It ... in a standalone for loop? 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 - Rounded corners for TABS in android

I want to achieve rounded corners for the tab that I've constructed in my application. So far I was able to ... Thanks for your response !! :) 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 - JPasswordField security with action command

I am using a JPasswordField in my program. When I ask getPassword(), I get a char[] array. But when I add ... ? Isn't this a security 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 take a time until focus is being setting up on image and than take a picture?camera2API

I work with camera 2 API. I use standard google sample for camera. Issue is code allow to user take a ... picture only when camera in focus? 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 - Alternative to sslSocketFactory in Java10

I am using OkHttp and I need to ignore SSL errors for application debugging. This used to work in ... and 10 without using sslSocketFactory? 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 - postInstantiate buildSessionFactory slow/memory huge database

Having an ERP database with more than 520 tables, the postInstanciate of EntityPersister is very slow and its ... application become very slow. 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 - Calculating end date while skipping holidays + Joda time

I would like to calculate end date (and time) of an event. I know starting date and duration (in minutes ... cases using Joda time library? 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 the first Monday of a month

I want to get the day on which the first Monday of a specific month/year will be. What I have: I ... calc].setText(getDayString(calc)); } 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 - Problems implementing the new GCM Client for Android

I'm trying to implement the new GCM Client on Android following the guidelines from Google (https:// ... additional info please comment. 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 - @Singleton, @Startup, @PostConstruct doesn't work on EJB3.1 and Glassfishv3.0.1

I have a problem with this setup and I can't even view the logs. This is my @Singleton @Startup EJB: ... scope>provided</scope> </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 - Can JVisualVM "Heap Dump" button release memory?

i have a very strange problem. I'm working on an OSGi application, based on Eclipse Equinox; it was developed ... in this problem... 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 - cast a String to sql time

How we cast a string into time type with mysql in java So String------->java.sql.time 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 - Empty String validation for Multiple JTextfield

Is there a way to validate a number of JTextfields in java without the if else structure. I have a set ... field were being accepted. 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 - fragments in viewpager, no view found error

I have an activity holding a fragment, in this fragment there is a button , when it is clicked, a ... .system.NativeStart.main(Native 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 - GWT Clone a widget using DOM.clone

I wish to programatically clone a widget. I am able to clone the Element inside the Widget with Dom.clone but ... way of cloning the Widget? 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 monitor external process ran by ProcessBuilder?

This should be rather simple, but I don't see anything helpful in JavaDocs. What I need is to run some external ... { e.printStackTrace(); } } 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 - IllegalArgumentException: Invalid column latitude

Following the documentation I tried querying ContentResolver to get the file size, like this: @Override protected void ... get the same 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 - Why is there a server-side limit on the length of a URL?

My Java Servlet is making use of the Facebook Graph API via the URLFetchService.fetch(HTTPRequest request) method. This ... Engine SDK 1.6.1 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 - What are JAX-WS Interceptors (also known as handlers)?

What are JAX WS Interceptors? Where do I find info regarding 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 - Adding a custom certificate to an OkHttp Client

I am trying to make Android app, where I can get and parse HTML (from site which doesnt have API). I am ... , and also it is deprecated. 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 - Hibernate Return integer value

I am new to hibernate . I want to pass 2 column values and want hibernate to return primary key of that table. ... How can i return int 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 - Get all beans implementing a generic interface in Spring

How do I get a reference of all beans implementing a specific generic interface (e.g. Filter<TestEvent>) in ... get away from. 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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283 views

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java - Why is Spring Security not working?

I am trying to integrate Spring Security in my project. I have followed the documentation given here: https://spring ... What am I 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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319 views

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java - How to use OSGi fragments to contribute platform-dependent native code with the same filename?

I am using the JNotify project to listen to file system events. This depends on one native library per OS: ... means the bundles don't resolve 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 make pdf file password protected?

I want to make pdf file password protected. I just goolge it for the same and find a good solution given below. ... to made in this program ? 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 - Flat-Mapping Collector for property of a Class using groupingBy

I have this class. class Assignment { private Integer index; private List<Quantity> quantities; } Then, ... only collect and groupingBy methods 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 BeanCreationException confusion about mapping

trying to integrate hibernate and spring ,I ran into this error SEVERE: Context initialization failed org.springframework ... mapped to the url. 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 - EntityManager cannot use persist to save element to database

I met the problem of persisting element to database using EntityManager. Based on the answers I found, I tried those ... "dataSource" /> </bean> See Question&Answers more detail:os...

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

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