Java 归档 - Page 296 of 655

Declare enumeration variables in Java beans

I need to declare an enumeration variable as a class member and define a setter and getter for it like a java bean Som……

Java

2020-02-27

Java – unit test EJB

I'm looking for a way to apply TDD to session bean Who can provide suggestions and links on how to unit test them? How……

Java

2020-02-27

Java – using less memory requires reordering array elements

I have a recent interview question about reordering elements in an array with minimum memory usage Do not use any othe……

Java

2020-02-27

Java – completable future | then apply vs thenpose

I can't let my head revolve around the difference between thenapply () and thenpose () So can anyone provide an effect……

Java

2020-02-25

Java – type mismatched keys from the map: expected Text,received … LongWritable

I have a simple Hadoop application that takes a CSV file, splits the entries with "," and then calculates the first it……

Java

2020-02-25

Java – how to repeat the “if” statement when the output is false

I'm developing a simple game where users have to guess a random number I've set up all the code except the fact that i……

Java

2020-02-25

Java – how to set the background color of custom button status?

I have a button that contains drawable and text I hope the background of the button is different from the normal backg……

Java

2020-02-25

Java – confused about ThreadLocal

I just learned about ThreadLocal this morning I read that it should always be final and static: private static final T……

Java

2020-02-25

Java – namespace in JDOM (default)

I'm trying to generate XML documents using the latest JDOM package I encountered a problem with the root element and n……

Java

2020-02-25

Java – how to sort vectors?

In Java, I want to know how to sort vectors on a specific column. One vector is used as a row and one vector is used t……

Java

2020-02-25

Java – what is the correct way to create a completed completable future

I use completable future in Java 8. I want to write a method to run multiple tasks with side effects in parallel accor……

Java

2020-02-25

Java – invalid sort on date in JTable

Look at the code below import java.awt.*; import java.awt.event.*; import java.text.NumberFormat; import java.text.Par……

Java

2020-02-25

Java – is there a case where the abstract class is better than the interface

I have a scenario in which several subclasses have similar implementations and some additional methods, and the implem……

Java

2020-02-25

Java instance: supertypes and subtypes seem equal? How to accurately test type?

If an instance completely belongs to a given type, I need to test it However, if the subtype is tested as a supertype,……

Java

2020-02-25

Get Java classes from multiple wsdls

I have a maven project where I need to generate Java classes from multiple WSDL files I have checked this link: http:/……

Java

2020-02-25

Java – use a specific pattern to format an instant as a string

I'm trying to format instant as a string using a specific format According to the question of format instant to string……

Java

2020-02-25

Java – stores serializable objects in the database

I'm writing an application that needs to write objects to the database For simplicity, I want to serialize objects But……

Java

2020-02-25

Java – regular expression in spring controller

I'm trying to build a request filter that will only be used if it matches the pattern of the letter E and then a numbe……

Java

2020-02-25

Add package to Java project structure

I've been working on a local project, and sometimes I hand it over to someone else The question is: is there another w……

Java

2020-02-25

How to hide the pannable scroll bar in JavaFX?

I created a pannable scrollpane Now I want to hide the bar to the right of the scroll bar .scroll-bar:horizontal .incr……

Java

2020-02-25

Java – GWT, how eclipse plug-ins integrate projects with gwt. Rename with XML file? An error occurs when trying to do this

I spent some time searching on it, and everything I found seems to have nothing to do with my problem I'm making an RP……

Java

2020-02-25

Java – scan tree structure from bottom to top?

If the following tree structure or similar structure is given: I want to return the string zyxwvut I know how to do th……

Java

2020-02-25

Java heap dump error – Metadata does not appear to be polymorphic

When I try to get a heap dump from a running java process, I get this stacktrace What is the cause and what must I do ……

Java

2020-02-25

Debugging – using GlassFish 3.0 1 and NetBeans 6.9 JPA 2.0 for 1 (recording and tracking)

I'm in GlassFish v3 0.1 and NetBeans 6.9 JPA 2.0 (eclipse link provider) is used in 1, and queries and other logging i……

Java

2020-02-25

Java – using Jersey’s dependency injection

If I use Jersey 1.12, and I have multiple resource classes, and they all need to access some shared context, what is t……

Java

2020-02-25

How do I group vectors into vector lists?

I have some data that looks like this (such as false data): dressId color 6 yellow 9 ……

Java

2020-02-25

Java – libgdx: set another screen, but still the button activated from the old screen

In my libgdx game, I have 2 screens, menus and lists But when I click the same location (from the menu screen where th……

Java

2020-02-25

New to Java – what are JPA and Dao?

I'm new to Java and I'm trying to create a web project using a servlet I was taught to do this: >Create class com p……

Java

2020-02-25

Kotlin for deconstruction, quadruple, quintuple, etc

I am looking for a clean way to create destructible objects online kotlin. Pair and kotlin Triple covers many use case……

Java

2020-02-25

Java gridbaglayout anchor

Learn gridbaglayout. The problem here is the name and label com@R_950_2419 @It does not appear at the top of the panel……

Java

2020-02-25

How does immutability of Java strings increase security?

I am a novice in Java. When learning, I found that a string is immutable While I was reading the reasons behind it, th……

Java

2020-02-25

Java – “received fatal alert when deploying to sonatype: bad_record_mac”

Try deploying to the sonatype repository (sometimes!) When, I get this stack trace: javax.net.ssl.SSLException: Receiv……

Java

2020-02-25

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Declare enumeration variables in Java beans

Java – unit test EJB

Java – using less memory requires reordering array elements

Java – completable future | then apply vs thenpose

Java – type mismatched keys from the map: expected Text,received … LongWritable

Java – how to repeat the “if” statement when the output is false

Java – how to set the background color of custom button status?

Java – confused about ThreadLocal

Java – namespace in JDOM (default)

Java – how to sort vectors?

Java – what is the correct way to create a completed completable future

Java – invalid sort on date in JTable

Java – is there a case where the abstract class is better than the interface

Java instance: supertypes and subtypes seem equal? How to accurately test type?

Get Java classes from multiple wsdls

Java – use a specific pattern to format an instant as a string

Java – stores serializable objects in the database

Java – regular expression in spring controller

Add package to Java project structure

How to hide the pannable scroll bar in JavaFX?

Java – GWT, how eclipse plug-ins integrate projects with gwt. Rename with XML file? An error occurs when trying to do this

Java – scan tree structure from bottom to top?

Java heap dump error – Metadata does not appear to be polymorphic

Debugging – using GlassFish 3.0 1 and NetBeans 6.9 JPA 2.0 for 1 (recording and tracking)

Java – using Jersey’s dependency injection

How do I group vectors into vector lists?

Java – libgdx: set another screen, but still the button activated from the old screen

New to Java – what are JPA and Dao?

Kotlin for deconstruction, quadruple, quintuple, etc

Java gridbaglayout anchor

How does immutability of Java strings increase security?

Java – “received fatal alert when deploying to sonatype: bad_record_mac”

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