Recent questions tagged Java

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java - error: cannot assign a value to final variable

I am working on an assignment and I'm stuck on this error: cannot assign a value to final variable count Here ... possible. Thank you so much. 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 - Find merged cell in Excel, split the cells and write those in new spreadsheet?

I have been given a Assignment that I need to Split the data of a Spreadsheet and Write it into the new ... is appreciated. 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 use ResourceBundle

I'm trying to grasp internalization of java applications as shown here. I can't though. I have created ... .run(EventDispatchThread.java:97) 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 throw an IOException?

public class ThrowException { public static void main(String[] args) { try { foo(); } catch(Exception e) { if ... I'd be very grateful. 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 - How do you make key binding for a JFrame no matter what JComponent is in focus?

How do we make key bindings for a JFrame regardless of what's in focus in the frame? I already looked ... work across an entire 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 to access a JavaFx Stage from a Controller?

I'm converting a pure JavaFx app, in which the code below worked fine when put all in one class, to a FXML ... t pass the stage as an argument. 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 - Integer as primitive type

Why there is primitive type for integer(int) even though we have an object for integer as Integer? But ... String deals with object reference? 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 - API to integrate with Domino

I am a relatively newbie to Lotus/Domino world and have been tasked with the following Domino task. Access user's Domino ... (C/C++ or 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 - Why can't Stream.flatMap accept a collection?

Given the following as an example of data classes: class Country { List<Region> regions = new ArrayList<>(); List< ... Collection :p or do I?) 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 findbugs detect unused public methods

Is it possible to detect unused methods in a source tree using FindBugs? I see some posts on SO where users ... I don't care about reflection. 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 - Convert JSON to POJO

I am using Jersey for REST WS, and I get my response as JSON. I want to transform this response to a POJO. How to do 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 - How to switch through tabs programmatically in JavaFX

Only one tab is visible at a time. The user selects the one using mouse/keyboard. Suppose, there are three ... programmatically? If so, how? 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 - Reuse CXF jaxb context between multiple services

I have multiple services which can return results out of thousands of classes. Since each CXF service contains a ... it between the services? 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 serialize non-serializable base class in standard serialization?

I can't control the source code of the base class, then, how can I use standard serialization on the subclass? In this ... b); } } Output: 0 20 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 determine if 2 fonts have equivalent glyphs?

This Q&A was inspired by Unicode char not rendering in Swing, what font is used in real? but since ... in returning identical character glyphs? See Question&Answers more detail:os...

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

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445 views

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java - LWJGL Display class can't be found

I have installed LWJGL into a Java project, and I can't import the Display class. import org.lwjgl.opengl.display ... of them in the broswer. 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 Hibernate sometimes ignores FetchMode.JOIN?

I have an entity with a @ManyToOne relation, which I'd like to retrieve with a single query, thus using @Fetch( ... s not what I'm asking. 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]Error: entity class not found:

I get tired of this for a long time. I do not know what caused this error. Here are my files: Uzytkownik. ... () { return sessionFactory; } } 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 - "Received fatal alert: handshake_failure" in jlinked JRE

My Java program sends requests by java.net.http.HttpClient (Java 11). It works when I am running it in ... problem is with my custom JRE. 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 error: Could not find method onClick(View) in a parent or ancestor Context for android:onClick

I have seen that there's been some similar questions but the answers to those haven't helped me so far. ... something or have made a mistake? 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 - Getting binary data directly off the windows clipboard

I've been beating my head against the desk for about an hour now just trying to find some way of getting say... ... have that effect on me. :( See Question&Answers more detail:os...

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

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337 views

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java - static vs non static

Until few weeks back, I thought I understand when to make fields and methods static or non-static. For ... application is way more 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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444 views

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java - Paging and sorting in Spring Data Neo4j 4

is there pagination support for custom queries in SDN4? If yes, how does it work? If no, is there a ... (pageable); assertNotNull(topics); } See Question&Answers more detail:os...

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

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756 views

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java - Using custom colors with SXSSF (Apache POI)

I am trying to write a huge excel file, my requirement allows me to write the row and forget, so i ... a primitive rgb color matching algorithm) 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 - JPA with TopLink: No META-INF/persistence.xml was found in classpath

public class LoginTest { public static void main(String[] args) { EntityManagerFactory emf = Persistence. ... library is TopLink. See Question&Answers more detail:os...

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

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423 views

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java - SoundPool "AudioFlinger could not create track, status: -12"

I have an Android app with single button. When the button is clicked, the app starts playing (looping) sound ... sound is here: sound01.mp3 See Question&Answers more detail:os...

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

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405 views

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java - Android - Hashtag in TextView

How to implement hashtag inside TextView? What I want to do is implement linkable hashtag inside textview. Then ... (savedInstanceState); } } 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 - Convert and display image from byte array

I'm making a program, which gets data about an image in byte array from a server. I'm converting this data ... and would be glad for ideas. See Question&Answers more detail:os...

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

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