Recent questions tagged java

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java - How to change background color of JOptionPane?

I have added JOptionPane to my application but I do not know how to change background color to white? `int ... = JOptionPane.OK_OPTION) { }` See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Why does heap memory increase when re-launching an activity?

This question concerns memory in Android. My method: I have two activites, A and B. From A, I launch B like ... was back. How strange is that? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to avoid request set ASYNC_SUPPORTED=true to enable async servlet 3.0 processing on Tomcat 7?

Following an issue reported on this question, a solution was found: req.setAttribute("org.apache.catalina. ... processing in Tomcat 7? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Default eclipse working directory

Is it possible to set a default working directory in Eclipse 3.4.1? By Default that is: ${workspace_loc ... run from that particular directory. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - JAX-WS Sharepoint 401 Unauthorized NTLM

I try to access a Sharepoint list via JAX-WS as described here However, when running the code below I get: java.lang ... ."); } return port; } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - adding multiple jPanels to jFrame

I want to add two jPanels to a JFrame side by side. the two boxes are jpanels and the outer box is ... of its subcomponents setVisible(true); } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Dagger 2 on Android @Singleton annotated class not being injected

I am currently trying to integrate Dagger 2 into an Android application. My project setup is as follows: library ... crash the app at runtime. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Spring hibernate , how to call some method after transaction commit or transaction rollback

I need to call some method after transaction succes or rollback. I am using as <bean name=" ... using declarative transaction management. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Is it possible to package all the jar dependencies in one big jar?

I know this isn't "best practice", but can I include all of the dependencies in one big jar? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Firebase Firestore retrieve data Synchronously/without callbacks

I am using Cloud Firestore in a separate thread in my Android app, so I don't want to use listeners ... and it was quite trivial there. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Which return type use in spring mvc in @RequestMapping method?

I know in spring mvc in @Controller class in @RequestMapping method I can return String Model ModelAndView I don't ... you to explain me it? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Cannot resolve constructor ArrayAdapter

I am getting a Cannot resolve constructor ArrayAdapter in my OnCreateView method with the listAdapter I am trying to list ... layout; } } } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Can I know the name of the class that calls a JNI C method?

Is there any way I can know the name of the class that called a method in JNI C code ? I can obtain a ... know the name of the class ? . See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Prime number calculation fun

We're having a bit of fun here at work. It all started with one of the guys setting up a Hackintosh and ... current, first mentioned by Jason Z. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - ImageIO.write bmp does not work

I'm trying to save an image in bmp format, but it doesn't create any file. If I use "png" instead, ... some others.. Thanks in advance. Jakob See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Spring @Transactional Annotation : Self Invocation

I know when a transactional method is called from inside the same class it wouldn't be run in a transaction. ... anything I'm missing here? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to add an element to Array and shift indexes?

I need to add an element to Array specifying position and value. For example, I have Array int []a = {1, 2 ... see how to implement it in code. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - static variables, what is their life span?

I am using static variables in my app, lots of them. My question is, when I exit the app will they be ... I correct this. Thanks in advance. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - List is a raw type. References to generic type List<E> should be parameterized

Below is my syntax List synchronizedpubliesdList = Collections.synchronizedList(publiesdList); I am getting a syntax ... suggest the solution. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - jersey 2: How to create custom HTTP param binding

I am trying to create a custom http param binding for my restful service. Please see the example below. @POST @Path("/ ... rs"); } } Thank you! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Are leap seconds catered for by Calendar?

Are leap seconds catered for by the GregorianCalendar class? If not, does any 3rd party library cater for it? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - PowerMock: mocking of static methods (+ return original values in some particular methods)

I use PowerMock 1.4.7 and JUnit 4.8.2 I need to mock only some static methods and I want others ( ... how to mock concrete argument variation. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - how to return enum from JNI

In java I have: public class MyClass{ public enum STATUS { ZERO, ONE , TWO } public native STATUS nativeGetStatus(); ... to state ? if yes how? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Problems using Rhino on Android

I'm trying to use Mozilla Rhino in my Java application for Android to evaluate some JavaScript. I am using ... this to work is appreciated! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Pointcut for annotated methods or methods in annotated classes

I need a pointcut for methods in classes annotated with @X or methods annotated with @X. I also need the ... that does not require reflection? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - new String() vs literal string performance

This question has been asked many times on StackOverflow but none of them were based on performance. ... optimization happening inside? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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252 views

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java - Files.readAllBytes vs Files.lines getting MalformedInputException

I would have thought that the following two approaches to read a file should behave equally. But they don't. The second ... and how do I fix it? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How do XML namespaces work without a working network connection?

<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns: ... URLs somehow aliases to JAR files? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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