Recent questions tagged JAVA

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java - apache spark: akka version error by build jar with all dependencies

i have build a jar file from my spark app with maven (mvn clean compile assembly:single) and the following pom ... do wrong? best regards, paul 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 Map address or Location Address in Android

I am writing an app that requires to get the current map location. My Map file works fine by it self, but I ... () { return 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 - Creating Spring Framework task programmatically?

I need to create task on the fly in my app. How can I do that? I can get scheduler with ... too. @Autowired private TaskScheduler taskScheduler; 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 change workspace JRE in Eclipse

While creating new Java project in Eclipse I got following warning "The current workspace uses 1.4 JRE..." I have ... workspace JRE to JRE 7 ? 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 - View file path in a file manager as Android intent

Just so you know, I've already checked both the Android developer documentation and OpenIntents, without finding an ... installed on the device. 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 - combine multiple images into one ImageView

I'm looking for help developing (or a library) which can allow me to merge together multiple images into one ... advice you can give :) 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 redirect url to jsp in web.xml

(Should be an easy one-) How can I redirect all urls of the pattern yada*.js into a my specific jsp. ... javax.servlet.filter for that purpose? 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 method for parsing nested expressions

lets say I've written a function to evaluate a simple mathematical operation, and I have some user input in a string ... API if I can avoid 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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java - Dynamically defining and using selectors

I have a ListView which has custom elements inside of it. I want to create selectors for each of those ... programmatically to a specific view? 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 - Stand-alone Bytecode Verifier

In my bytecode instrumentation project, I stumble frequently on VerifyErrors. However, the default java Verifier gives ... location? Thank you. 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 cursor position or location from RichTextArea in GWT?

I want to get cursor position or the location from RichTextArea. I do not know how to get current cursor position ... ... 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 - Read pdf using iText

I am getting problem to read pdf files using iText in java. I can read only one page but when I go to ... and at second line gives exception. 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 stop embedded images in email being displayed as attachments by GMail?

I am sending HTML emails with embedded images (as attachments) and the images display as expected in ... --=_Part_0_1248835444.1288246311187-- 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 WebView Memory Leak when using Assets

I've recently noticed that when I load a webview based off code from a file (using assets or a local directory) ... in Browser in the newest OS. 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-boot : Exclude dependencies on packaging

I am working on a spring boot project ( Project A ) that would be included in other projects ( Project B, ... end up in the final artifact. See Question&Answers more detail:os...

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

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288 views

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java - property not found with multiple context:property-placeholder

I am using spring 3.1 with spring profiles to load the beans. In my app context file, I load the properties ... me to fix this. Thanks Akki See Question&Answers more detail:os...

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

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359 views

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java - Eclipse conditional breakpoint - only after other breakpoint

I'm debugging an application that does a lot of method calling. I want to, for example, debug methodA. It is ... ? Or are there better options? See Question&Answers more detail:os...

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

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308 views

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java - Proper way to deep copy with copy constructor instead of Object.clone

I have some code that performs a deep copy using Object.clone, but I'm trying to rewrite it using the more ... do it any differently? 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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282 views

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java - Method Chaining: How to use getThis() trick in case of multi level inheritance

My question is in context of Method chaining + inheritance don't play well together?. But unfortunately all examples/ ... Is there a better 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 to solve javax.crypto.IllegalBlockSizeException: data not block size aligned

I am doing an assignment about use blowfish to do encryption & decryption in java. I had added a provider, and ... (Cipher.java:1171) Thank you. See Question&Answers more detail:os...

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

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297 views

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java - ReentrantLock vs synchronized on CPU level?

Is there a difference between 'ReentrantLock' and 'synchronized' on how it's implemented on CPU level? Or do they use the same 'CAS' 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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251 views

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java compiler not give all error at a time

System.out.println("First eror :: without semicolon ") // first Error System.Out.println("This second error :: OUT ... on proper path. :) } } See Question&Answers more detail:os...

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

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297 views

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java - What is the main difference between primitive type and wrapper class?

What is the difference between these two lines? int pInt = 500; and Integer wInt = new Integer(pInt); Or Integer wInt = new Integer(500); See Question&Answers more detail:os...

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

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290 views

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java - Stream a collection and collect into multiple results depending on independent predicates

I am staring at some imperative code which I am trying to convert to a purely functional style. Basically there ... streams/map/filter/ 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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java - LibGDX - Application crashes when call TiledMapRenderer.render()

@Override public void render(float delta) { Gdx.gl.glClear(GL10.GL_COLOR_BUFFER_BIT); camera.update(); sprite. ... really going mad ! See Question&Answers more detail:os...

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

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317 views

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java - Why does concatenated characters print a number?

I have the following class: public class Go { public static void main(String args[]) { System.out.println("G ... Why my output contain a number? 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 - Check if object can be fetched by garbage collector

is there a way to check if an object can be fetched by the garbage collector? Somewhere in my code I've got a ... to it? Thanks a lot, Stefan See Question&Answers more detail:os...

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

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214 views

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java - Nested Arrays in Android xml

Previously I had a simple string-array that contained a URL it looked like <string-array name="drawerlinkitems"> ... would be much 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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