Recent questions tagged Java

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java - Augmented Faces API – How facial landmarks generated?

I'm an IT student, and would like to know (understand) more about the Augmented Faces API in ARCore. I just saw ... this subject, let's share ! 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 - Reusing a JPanel in NetBeans GUI Designer

This is in NetBeans 6.5, Java 6. I have the following hierarchy in the NetBeans GUI Designer: JFrame ... opposed to a complete JFrame). 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 Memory assigns to lambda | How does it refered,by non super class reference variable

I was creating the implementation of a functional interface, below is my code: Consumer<Integer> consumer = new ... handle such at run time? 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 - Mutable or immutable class?

I had read in some design book that immutable class improves scalability and its good practice to write immutable ... for improve scalability ? 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 - Generic type lost for member of raw type

I have found a strange behavior when working with generics. In this class Foo<T>, the strings member doesn't have ... java version is 1.7.0_21 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 the path to the executable when using launch4j?

I'm using launch4j to wrap an executable jar file in my Windows application, but I need to pass references to ... aren't necessarily 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 - Explanation of how classloader loads static variables

Ok so this is a newbie question on java, but i can't seem to get my head around it. I have the ... before fully loading all the other variables? 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 specify a JRE range in jnlp file?

We have a java app which uses Java Web Start. The jnlp file is configured with [j2se version="1.5+"]. ... there a good way to accomplish 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 - Why passing {a, b, c} to a method doesn't work?

I've tried to pass an initialization list {...} to a constructor and it didn't work. When I instead declared it in a ... ,8,0,7,289,1}); } } 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 - Where should the integration tests be stored when using the maven-failsafe-plugin?

Do I have to place my integration tests under src/test with the rest of my unit tests and just distinguish ... controlled via a Maven profile). 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 bypass the JavaFX's TableView "placeholder"?

JavaFX's TableView has a placeholder property that is basically a Node that gets displayed in the TableView whenever ... to be actually empty. 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 - Configure SQS Dead letter Queue to raise a cloud watch alarm on receiving a message

I was working with Dead letter Queue in Amazon SQS. I want that whenever a new message is received by the ... looking for some better solution. 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 locale programmatically not working in some devices

I've the following piece of code: /** * Sets a new Locale for the APP. * @param newLocale - Valid new locale. */ ... 320 dpi - 4.1.1 - OK 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 - XPath class resolution in JBoss5

I'm having a hard time figuring out where the problem is coming from, so I'm posting this in the hopes that ... the grief. Thank you 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 - JLabel - get parent panel?

Is it possible to get the name of the panel that a JLabel is added to? I added some JLabels to different ... panel the jLabels are placed upon. See Question&Answers more detail:os...

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

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316 views

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java - Best practice for global constants involving magic numbers

To avoid magic numbers, I always use constants in my code. Back in the old days we used to define constant ... for storing constants in Java? 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 class of generic type when there is no parameter of it?

I just learned about this fine looking syntax Collections.<String>emptyList() to get an empty List with elements which ... 's out of the scope. 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 Key and values from JSONObject

I am trying to extract Key and values from my JSONObject. But i am not able to do that. Here is the JSON: ... . Can anyone help me out 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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708 views

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java - gson fails to parse using GsonBuilder.setDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSZ")

I get this string from the server: [ { "title":"spoil the ones u love today", "startDateTime":"2014-08-10T20: ... empty. 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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java - Efficiency of creating new objects in a loop

I'm not certain if this question is language independent or not so I'm going to just ask this as a ... code to better exemplify the question See Question&Answers more detail:os...

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

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321 views

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java - Spring MVC - Request mapping, two urls with two different parameters

Is it possible in Spring to have one method with two different urls with different params for each method? Below is pseudo ... A a, ...) { } 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 - BufferedReader not stating 'ready' when it should

I am trying to read text from a web document using a BufferedReader over an InputStreamReader on an URL (to the ... is actually stuff to read? See Question&Answers more detail:os...

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

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285 views

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java - How to accommodate multiple coding styles? (git vs. IDE)

I am collaborating on a git-sourced, maven-managed Java project with differing code styling preferences with ... to explore those solutions. 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 - maven surefire reporting plugin configuration

I have a multi-module maven project. The parent pom.xml is simply a way to reference common ... subprojects generated surefire reports? 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 - Where is defined the combination order of the combiner of collect(supplier, accumulator, combiner)?

The Java API documentations states that the combiner parameter of the collect method must be: an associative, non- ... really doesn't matter? See Question&Answers more detail:os...

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

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457 views

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java - IntelliJ JDK 16 Early Access - Any Success? tools.jar

Has anyone had any success using JDK 16 (https://jdk.java.net/16/) early access build with IntelliJ? I am ... this post. 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 do I properly use the "PBEWithHmacSHA512AndAES_256" algorithm?

I'm doing some Java encryption, and cannot figure out a way to properly use the the PBEWithHmacSHA512AndAES_256 algorithm. ... + decrypted); } } 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 - JavaFX class controller scene reference

Is there any way of getting the Scene object of an FXML loaded file from the associated class controller. ... reference the AnchorPane control. See Question&Answers more detail:os...

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

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