Recent questions tagged JAVA

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java - Dynamic Named Query in Entity class using JPQL example

I have a named query as below; @NamedQuery(name = "MyEntityClass.findSomething", query = "SELECT item FROM ... for a JPQL implementation now. 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 reflection package to create an object from a classpath

I want to create an object I know only its classpath Any 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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java - How to create my above listview to look more professional?

Can someone tell me how should am i going to create my listview which look similar [here][1]. Problem: How am ... new in android/java... 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 - I'm working on having a "Keep me on Logged in" state on my app. How should i do it?

Here's my xml: <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation=" ... radio buttons. 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 - FireBase Storage MetaData-Updated Time returning 0?

I am attempting to use Firebase to store and sync several CSV files. Copies of these CSV files are stored in internal ... Error"); } }); } 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 programmatically log into a website?

I have looked at multiple examples on stackoverflow and cannot get it to work. This is the url I need to log ... and doesn't work on android). 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 Room database file is invalid file format in DB browser

I am going to data/data/myPackage in emulator and download these three files about my apps database : But when i ... ; } return INSTANCE; } } 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 Click on the each individual position using base adapter

I am using the base adapter , i have list which contains list with the text view (means left side ... </RelativeLayout > Regards Amrinder Singh 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 Firebase multiple sort

I have a question about firebase sorting. I have the next database: { "-Ka8xxTgyFB8yYKH50j_addclose" : { "number ... clientside? Thanks 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 - Printable not working properly

I have a system where the user can register students, subjects, and the student grade in each subject, together with the topic ... = 0; tempRect.y = 0; tempRect.width = imgWidth;...

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

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214 views

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java - Unfortunately application has stopped android emulator genymotion

I am new to android app development( from yesterday only i started to learn android ). I am getting message in ... 48:16.663: E/AndroidRuntime(1395): at android.app.ActivityThrea...

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

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java - Filling a 2d array with numbers in a rhombus form

I need some help filling a 2D array using a nested for loop. The desired output is this... 20.0 19.0 18.0 ... by the absolute values of x and 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 - drawingPanel color change with displacement

I'm using JGrasp, and in drawingPanel, I'm trying to create a ball that changes colors as it moves across ... I hope that's simplified enough. See Question&Answers more detail:os...

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

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255 views

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java - JButtons won't update on button click

Currently displays a GUI with an 8x8 grid of randomized colored buttons. The newButton is to reset the score display to ... { return score; } } 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 - Maven package issue locally?

I run mvn package and I get this error message: [ERROR] Failed to execute goal on project gs-maven: Could not ... but it doesn't work locally? See Question&Answers more detail:os...

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

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233 views

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java - get position of the button on gridlayout

How to get position(I mean row and column) of the clicked button with gridlayout? public void init(final Container ... } pane.add(controls); } See Question&Answers more detail:os...

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

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255 views

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java - Im not sure how to get the data from my text field

I want to get the data from my textfield and set it to int h. and have that change the size of the rectangle im ... () == textField) {} } } 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 - parameterizing object properties

Can someone show me a code efficient way to have an object property in spring mvc change based on parameters ... return "owners/ownersList"; } 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 - Creating a custom wifi setup

I was just wondering if it is possible to make a custom Wifi interface within an app, where the user can ... Thanks for any ideas and 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 - Passing a Int value to another class

I have four groups in a listview each with four url's I want to load in a webView. When the user select ... if this is hard to understand. 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 return value from SwingWorker class and use in other class and enable MenuItem when process is done?

I am using SwingWorker class to make a process run in another thread. What I want is, once this ... Recalibration"); recalibrationParameters = new JPanel(new GridBagLayout());...

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

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119 views

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java - Android webserver shows html pages as text

I am developing a android app which turns the android device into a multithreaded web server the code which ... RequestProcessor Please 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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242 views

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java - Pong Paddle bottom doesn't move up when UP key is pressed

I'm trying to make a pong game but my pong paddle isn't moving up properly for some reason. When I ... general code advice would 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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219 views

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java - Select image from gallery and show in imageview

I need Open my gallery in mobile phone and select one picture which opened in imageview on activity.. ... ZygoteInit.main (ZygoteInit.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 doesn't this for-loop let me input text the first cycle?

What I want to do is ask the user for a number of strings to read into an array, and then ask the user to ... System.out.println(text[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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230 views

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java - How do I swap two integers in an array, where my method takes in two integers and an array from main?

I call my swap method in main, but it doesn't change anything. What am I doing wrong? public static void ... swap the 4th and 15th element. See Question&Answers more detail:os...

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

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179 views

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java - Elements not showing in GridBagLayout

I am using GridBagLayout as JFrame layout. My elements are not showing no matter what i write. Please don't give ... .add(insertButton, gbc); } 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 - Anonymous interface implementation

I′ve read 'C# anonymously implement interface (or abstract class)' thread for implementing an interface anonymously. ... this single approach. See Question&Answers more detail:os...

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

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