Recent questions tagged Java

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java - Do I need another method to use the ColorFactory class?

I just found this really great ColorFactory class that I am using in my first Swing project. It is really ... .setBackground(color); } ) 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: Find all articles that have a common set of tags

I have the following entities: @Entity public class Article{ @Id private String id; @ManyToMany(cascade = CascadeType. ... used it before)" 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 you add a mouse listener to an object in paintComponent

Just a quick question, I was wondering if there is any way to add a mouse listener to a paint component? For ... this rectangle is clicked on } 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 - Error mocking Class which hold reference to SQLiteOpenHelper

I write unit test for my Presenter, which is need to mock my Local Data Source. Here is my simple test : ... class. Any idea? 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 - Frame and Canvas grow larger than specified

I have no idea why I am getting an extra-large window, this is making me run hoops to fit my sprites in ... squares just to see the effect. 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 - Selenium: How to tell if RemoteWebDriver.findElements(By) can throw StaleElementReferenceException at all?

In my understanding such exception can be thrown only if the code operates on a WebElement instance, calling methods ... t have @throws for 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 - spring-security returns 401 despite authorizeRequests().anyRequest().permitAll()

I'm using spring-security and spring-security-oauth2 (JWT access tokens) for authentication and authorization. ... (); } } 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 - Mock Protected Parent Method When the Parent is in a Different Package

I need to mock a protected method in the parent class of my class under test but the parent class is in a ... .fooString, "mockValue"); } } 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 - only one error: No Spring WebApplicationInitializer types detected on classpath

May 21, 2013 3:44:07 PM org.apache.catalina.core.AprLifecycleListener init INFO: Loaded APR based Apache Tomcat ... -pattern> </filter-mapping> 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 - Making http calls from swing application to a servlet, session not saved

I'm creating a Swing application that connects to a web server, running some servlets (created by myself). On ... with the servlet works well. 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 call javascript function from android using phonegap plugin

This is my index.html <!DOCTYPE HTML> <html> <head> <title>PhoneGap</title> <script type="text/javascript" ... this issue.This is urgent guys. 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 - JTable Key Bindings

I want to trigger an save action anywhere in my application (Control+S). I've added the necessary key binding, and the ... } }; return save; } } 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 I convert eclipse source folders into packages?

I've forked a Github project, used Eclipse to clone it locally, and imported that as a general project ... convert source folders to packages? 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 - Update normal distribution graph using JTextField in JFreeChart

I have a class that extends JPanel for JFreeChart. Inside of setMean(), I tried updating values of dataset or just ... : incorrect input"); } } 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 - Exception in thread "main" org.apache.hadoop.ipc.RemoteException: Server IPC version 9 cannot communicate with client version 4. How to resolve this?

I am using hadoop 2.7.0 and java oracle jdk1.7.0_79 with NetBeans IDE 8.0.2. When I try to communicate with ... ) at pir.PIR.main(PIR.java:256) 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 - JNA - Getting Base address

Recently I have been working on a little project of mine, which is Memory reading/writing in java for native ... bellow! thanks for the 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 - Getting https://localhost/myapp/saml/sso redirection throws 404 error - Spring MVC/Okta

I am trying to create SP initiated SSO on Spring MVC application with Okta idp. I am getting 404 after the ... 3.RELEASE] ... 47 more 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 the old value and new value between two revisions with Hibernate Envers

This is a follow up question to Retrieve audited entities name, old value and new value of the given revision ... modified (_mod) field fields. 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 - JSP/Servlets: How do I Upload a zip file, unzip it and extract the CSV file

Wondering how can I do the following in JSP/Servlets: Upload a zip file (containing multiple CSV files) Unzip ... inputs. 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 - Passing an array from class A to class B

I have an array named Floors in class A, it contains values something like the following: List<Point> manualpoint = ... from class A to B? 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 make AlertDialog view in Input method Service?

I would like to make an input method which is used only for SoftKeyboard. My how to make popup onkey event in ... (); } Thanks for 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 - Producing application/octet-stream and application/json

I have an endpoint that typically returns a document of type PDF, Word, etc. There is user input that goes ... end side to call this endpoint. 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 components of JPanel as a node in JTree usable?

When I click on the JButton nothing happens. This applies even for a JScrollPane that I put in (it shows, but ... (); frame.setVisible(true); } 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 extract a date in a specific format from URL using Selenium?

Using: String URL = driver.getCurrentUrl(); I get something like this: firstname=&lastname=&sex=Male&exp=1&datepicker= ... any idea? 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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881 views

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java - get table name from query

My question should be simple for many of you Supouse I have the following SQL and I want to get ... extremely apreciated Regards Raphael Moita See Question&Answers more detail:os...

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

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896 views

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java - When to display error messages for invalid input in Swing application

I am using a JFormattedTextField for to format integer input for a Swing app. The default behavior for invalid input ... as I would like 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 - Android & OpenCV - App crashes on UI change

I'm making an app using OpenCV face detection. I want to make some changes to the UI when a face is ... .lang.Thread.run(Thread.java:841) 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 - Passing a Javascript Variable to Android Activity?

Basically I want get data I already have accessed from javascript and passing it to Java/Android so that I can ... Javascript:"... Any tips? See Question&Answers more detail:os...

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

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