Recent questions tagged JAVA

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java - How to get all the audio file using mediastore

I am trying to get all the media files from the device (Internal and SDcard).Till now I am able to get ... How to set the getMusicInfos 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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java - JavaFX UI Frozen when performing Task in new Thread

I have a problem getting the JavaFX UI to keep active while performing a background Task. I have set up this very ... am I doing wrong? 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 - How to add a table to header or footer?

I'm having serious trouble adding a new, simple XWPFTable to an XWPFHeader (or Footer). Unfortunately there seems to ... Kind regard... ~ Daniel 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 - JFileChooser browsing a remote file system

I am trying to Implement a JFileChooser that allows a user to select files on a remote system via ftp. Everything ... me in a good direction? 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 - Connecting to a remote HBase instance

I have an HBase-0.98.3-hadoop2 instance running on a ubuntu VM, I could not connect to it (the main thread ... Any idea what I'm missing 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 - JOptionPane showInputDialog with custom buttons

Can i use showInputDialog with my custom buttons or can i rename "OK" and "Cancel" button on showInputDialog. 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 - Which method calls run()?

public class HelloRunnable implements Runnable { public void run() { System.out.println("Hello from a thread!"); ... calling the run() 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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java - Add values when JCheckBox clicked

My program contains a label with the caption Choose a coffee and four check boxes - Americano, Espresso, Double ... f.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 - Is it possible to copy database file to SD card?

I have a database on my Android phone, and I need to get the information onto an SD card. Is it possible to ... to an SD card would be ideal. 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 - Meaning of ReferenceQueue

I try to understand class ReferenceQueue It is optional constructor argument for SoftReference and WeakReference Also ... returns null always? 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 fix ArithmeticException error in android

Actually i dont know where the problem is.I think that it must be in creating TableLayout. I dont know how ... , paused 24ms+27ms, total 107ms 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 - Problem with Runtime.exec and Android

I have an issue when I'm using Runtime.exec with my Android device and just can't figure out why it happens. ... idea, I'd really appreciate 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 - Disable button on an Android app for a specific period of time

I'm building a login style application within android studio. As part of this I have created a rule that if ... (Color.YELLOW); break; } 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 properly keep a DB connection from a Connection Pool opened in JBoss

I'm using JBoss AS 7.1 as a server and I have my DataSource configured with pooling. I'm quite ... properly keep my connection opened? 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 - How to make JTextPane scroll horizontally

I have a JTextPane, when there are too many lines, a vertical scroll bar appears, but when a ... ); jScrollPane1.setViewportView(jTextPane1); See Question&Answers more detail:os...

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

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787 views

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java - How to draw the radius of a circle without it being shorter or larger than the circumference

I am working on a program in which I want to draw a line from circle's center to its parametric point. But it draws ... 300.0d,200.0d,x,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 - Windows: moving a file that was previously mapped in memory fails

-:= EDITED TO SIMPLIFY =:- I am facing an issue in the process of porting code from a Linux (Ubuntu LTS 12.4) ... !!! Tests run: 2, Failures: 1 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 - Troubles with AndroidSlidingUpPanel with Eclipse - Error Inflating class

I'm trying to use the AndroidSlidingUpPanel library (in Eclipse) and I have this error: 04-19 20:09:48.413: E/ ... and take your time 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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866 views

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java - How to sort an array or ArrayList<Point> ASC first by x and then by y?

I just want to use Collections.sort or Arrays.sort to sort a list of points (class Point) by x first ... with a equivalent comparable 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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java - Mapping Sub-Classes by Type Table (Many-To-One Hibernate)

I have to make the domain-layer of a collage project. We have few standards, like we have to use Hibernate ... for every answer. Jochen Morent 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 understanding concept of nodes and linked list

i am new to Data Structures and Algorithim and i am having some troubles getting around the whole topic of ... 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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908 views

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java - Eclipse:Tomcat: Failed to read candidate component class:

Can someone tell me how to solve this issue? As a freshman in Spring, I searched and tried a lot but still ... it and continue the next step. See Question&Answers more detail:os...

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

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825 views

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java - Sort List<T> of objects by a particular rule?

I have this list: List<Country> countryList = new ArrayList<Country>(); And I want to sort the countries by ... Argentina, Austria, Brazil, etc. 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 - JNI cannot detect __int64 on NetBeans

I'm trying to compile a native library to use it from java (with JNI). I have followed this tutorial: https:/ ... JNIEnv *env, jobject _this){ } 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 - Receiver class o.s.c.b.BootstrapApplicationListener$CloseContextOnFailureApplicationListener does not define or inherit an impl

I'm facing this error while running the project. I'm unable to know the cause of the error and unable to find ... (Application.class, args); } } 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 - Unable to read a barcode using apache camel

Hi i have tried to read a barcode from image using below code but i am unable to read the file as it ... workaround for this? 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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905 views

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java - JFreechart chart with Time from SQL Database

I'm new with JFreeChart and I'm trying to create a chart that display a value on the y-axis and the time ... type's timestamp PV type's float See Question&Answers more detail:os...

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

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790 views

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java - UnsatisfiedLinkError: Couldn't load sinch-android-rtc from loader dalvik.system

I unexpectedly received the below error while trying to run my android application on the phone. Essentially in the ... .imgur.co m/5Kx3e.png See Question&Answers more detail:os...

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

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