Recent questions tagged Java

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java - Unable to parse date Apr 15, 2020 12:14:17 AM to LocalDatetime

I am trying to parse Apr 15, 2020 12:14:17 AM to LocalDateTime using DateTimeFormatter.ofPattern("MMM DD',' ... paypal.Test.main(Test.java:76) 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 - In WebView, perform zoom in and out function while I press + and - key

As I'm making JavaFX application three in three WebView in my application, I have to perform zoom in and out ... key for zoom in and out. 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 I can't run struts2.5.13 in jdk9 win10

I followed the official tutorial,http://struts.apache.org/getting-started/how-to-create-a-struts2-web- ... java:844) Exception picture 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 404 though my app is deployed

Jenkins shows that the build was successful (see log below) and I can see the war in /app-root/ ... port Archiving artifacts Finished: SUCCESS 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 external JAR file in JasperSoft Studio

I have project in iReport, I want to build this in jasper studio,in that I use some external jar file to ... external jar file and use 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 - Building permutation that sums to a number efficiently

I am looking to generate more permutation that sums up to a given number N, however this time more efficiently. Since ... (computePerm(4)); } } 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 - Problems changing JButton background colors multiple times in Nimbus L&F

While using the Nimbus L&F feel in Java, I am having problems with changing the background color for a JButton more than ... 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 - Drawing a line using a Mouse Motion Listener

I'm new at using actionListener and mouselistner. I want to track the Mouse movements and connect the dots as I go ... method stub return y; } } 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 reverse the data fetched with FirebaseUI-Android?

I try to use the FirebaseUI-Android lib to simply display a data set in a recycler-view. Data are store in ... this simple and main frame job ? 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 - Refreshing multiple Realm instances at once?

I'm using a setup in which every Presenter that is a retained Fragment has its own Realm instance. However, ... with a global refresh event? See Question&Answers more detail:os...

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

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475 views

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java - Access installed certified to sign

I am trying to sign an Object in a Java + JSF project. What I have done so far is create my own ... help will be 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 - Changing the view within the Android Tab Widget

So I have my tab layout working as demonstrated in the Android example: super.onCreate(savedInstanceState); setContentView( ... with a new view? See Question&Answers more detail:os...

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

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610 views

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java - Fibonacci calculator with BigIntegers

I'm working on a homework project where I must have the user input a number, and the computer spits out ... the return for fibonacci2 method. See Question&Answers more detail:os...

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

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560 views

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java - Downgrading 9.0.83 Google Play Services manually to avoid DynamiteModule: Failed to load module descriptor

I got the following log error in my route tracking activity: 06-24 18:50:24.488 7128-7759/com.noureddine_ouertani. ... how to do this manually? See Question&Answers more detail:os...

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

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575 views

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java - Eclipse - Annotation processor, get project path

I am building an annotation processor plugin for eclipse, what i would like to do is to examine several files ... help will be appreciated.. See Question&Answers more detail:os...

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

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553 views

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java - ComboBox SAME item selected action listener

A combo box will fire an event if a DIFFERENT value is selected. I want to be also be able to listen to the SAME ... new ActionEvent()); }); } } See Question&Answers more detail:os...

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

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367 views

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java - long value with 0 on left

Why this behavior happens? long value = 123450; System.out.println("value: " + value); value: 123450 long value ... : 42792 What is this 42792? See Question&Answers more detail:os...

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

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467 views

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java - How to use Firebase's ServerValue.TIMESTAMP as a child and set a value to it

I want to create a structure like "child1/1510612788766/": key: "quantity", value: 10 "child1/1510612788767/": key: ... and set a value to 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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330 views

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java - Json response parser for Array or Object

I am writing a library to consume a Json API and I am facing a design problem when using Gson as the parsing ... or not work as expected? 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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525 views

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java - Web socket disconnecting on OpenShift (with WildFly 8.2.1)

I am using OpenShift and WildFly 8.2.1 final to implement the new HTML5 websocket. I used this tutorial to set ... > Thank you for your 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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481 views

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java - How to add a ToolTip to MapMarker in JMapViewer

I'm trying to add a ToolTip to a custom MapMarker on JMapViewer. But repeaded searches on are not helping me ... any help your able to offer. See Question&Answers more detail:os...

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

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373 views

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java - Keep app running in background on Android all the time

I have to get people's trajectory (from home to job, for example), so my app gets latitude and longitude (I have ... intent) { return null; } } See Question&Answers more detail:os...

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

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381 views

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java - Incremental graphics in Swing

I'm trying to get the hang of doing graphics stuff (drawing lines, etc.) in Swing. So far, all the tutorials I ... be, at best, kind of gauche. 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 set query parameters with single quotes

I'm using a oracle database.I need to run a update query through jpa repository.This is the query I have ... <Integer> logIdList); Any idea? See Question&Answers more detail:os...

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

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369 views

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java - How to show images in a large frequency in JavaFX?

My application generates heatmap images as fast as the CPU can (around 30-60 per second) and I want to display them ... ) image, res); } } See Question&Answers more detail:os...

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

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615 views

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java - Selenium test - Firefox alert disappearing immediately

I am writing a Selenium test on Firefox that deals with an alert. The alert appears for a ... until(ExpectedConditions.alertIsPresent()); See Question&Answers more detail:os...

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

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470 views

1 answer

java - Adding footer to ms word using POI api

I searched a lot and getting some results in which some sample code is there but no one is working. ... pointers towards the solution. 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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549 views

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java - An array is subset of another array

How can I efficiently check to see whether all the elements in an integer array are subset of all elements of ... 42]. 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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