Recent questions tagged Java

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The Problem is when I resize the JFrame the animation goes on with it's Pre supplied dimensions for JComponent . Is there a ... , 40, 40); } } } 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 - Firebase database - run on different thread

I want to run the events of firebase on different thread. On the last version of firebase I had this code that ... and run it in the executor) 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 - Basic AOP program throws BeanCurrentlyInCreationException

I am creating a simple AOP program and starting getting BeanCurrentlyInCreationException exception with it. Here is my ... as earlier code. } 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 - difference between class level instantiation vs method instantiation

what is difference between following variable usages public class A{ B b= new B(); public void doSomething( ... one whould be used. 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 SurfaceView/Canvas flickering after trying to clear it

So I am trying to clear the Canvas using canvas.drawColor(Color.BLACK) but if I just call this once, the display ... . What is going wrong 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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java - How to mock the default constructor of the Date class with JMockit?

I want to mock the default constructor of java.util.date so it does not construct a Date object representing the time ... This is sick! } } } 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 - Reading data from Excel file prior to version 95

Apparently Excel 4.0 is still used and I have to read it in Java. Neither poi nor jExcelAPI, as great as ... , especially with Java. Any help? 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 - getLastNonConfigurationInstance always returning null

HashMap myMap = (HashMap) getLastNonConfigurationInstance(); myMap is always null. getLastNonConfigurationInstance() returns an ... data; } 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 add a local non-maven project as a dependency for a maven project?

I created a new Spring web app, and I'd very much like to use Maven to handle builds/dependencies. ... these projects without mavenizing them? 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 - Compile error when providing interface as an arraylist type

I have an interface defined as interface ListItem { public String toString(); public String getUUID(); } And a ... Am I approaching this 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 - How to add components to JDialog

d1=new JDialog(); d1.setSize(200, 100); t1=new JTextField(); t1.setBounds(10,10,40,20); d1.add(t1); ... in JDialog such as TextField, Button... 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 - Looping through and arraylist and removing elements at specified index

I was trying an exercise where I would add 1000 elements to an arraylist and then remove them systematically from ... ()); kind regards Arian 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 - JavaDoc Reusable Parameter Values

Alright, I have this code here which is my replacement implementation of the standard Swing TableModel. Which I think is an ... g h i j} */ 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 - Multipart transferTo looks for a wrong file address when using createTempFile

I have the following java code in Spring framework to convert a multipart file to a regular file ... .OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.eclipse...

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

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java - Getting LocalDate to display in a Tableview in Javafx

I have been working on part of my application that allows a user to input holidays that their school takes off ... insight anyone can give 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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969 views

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java - Using spring integration IMAP adapter, how to fetch an email which was marked "unread" manually?

I have a piece of code which uses spring integration's IMAP adapter to poll an inbox to read all incoming ... useful. 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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383 views

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java - A Mechanism for having different equals (physical equals and logical equals) on objects in Collection

Is there any Equalator mechanism like Comparator so I can have different equals for coparing lists? EDIT: My goal ... ) or list1.logEqual(list2) 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 - Calling an oracle function from JPA

I am trying to call a simple function from a JPA class that returns a number based on some calculations and has ... to get the result I want? See Question&Answers more detail:os...

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

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572 views

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java - how to pause and unpause video transmission using Android Pjsua 2?

I wish to pause and unpause video transmission in video call on fly without dropping Audio call using ... this operation. link documentation 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 - Disable Keep Alive in Apache HttpClient

For some problem that we couldn't solve, I want to disable keep alive on Apache HttpClient 3.1. However, I couldn' ... Do you know 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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347 views

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java - Using the WildFly application server with NetBeans IDE

I was accustomed to using GlassFish server all the times. I'm migrating a Java EE application from GlassFish ... Server, for example). See Question&Answers more detail:os...

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

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468 views

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java - Why this hibernate template bulkUpdate doesn't work

Oracle 10g, Hibernate 3.4 This update (based on long user.userId value) is done correctly: getHibernateTemplate(). ... "); Anybody knows why? See Question&Answers more detail:os...

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

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431 views

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java - Why does ByteArrayOutputStream use int?

Maybe someone can help me understand because I feel I'm missing something that will likely have an effect on how ... about write(int)... See Question&Answers more detail:os...

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

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451 views

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java - Classloader resource paths are always absolute?

In a popular answer regarding the difference between class loading methods, Jon Skeet has stated, Classloader ... .JarLoader.checkResource(). See Question&Answers more detail:os...

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

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481 views

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java - Angular 6 + Spring Boot: Error: "from origin 'http://localhost:4200' has been blocked by CORS policy"

I am trying to connect angular 6 project with spring boot application. When I run angular project, it constantly ... to resolve this issue? See Question&Answers more detail:os...

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

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474 views

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java - Difference between Infinity and NaN (Not a number)

When does java print Infinity and when does it print NaN? Why is 1.0/0.0 infinity but ((1.0/0.0) ... What is the difference between these two? See Question&Answers more detail:os...

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

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497 views

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java - How do I detect the TLS version of an HttpServletRequest?

I am in the process of phasing out support for TLS 1.0 and TLS 1.1 for a web application. I would ... the TLS version of an HttpServletRequest? 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 - Scanner Exception Retry

How to make scanner retry when exception occur? Consider this app running on CLI mode. Example: System.out.print(" ... again. How to do that? See Question&Answers more detail:os...

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

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