I am trying to generate a donut or ring chart using jfree chart library. Ringchart was generated successfully but only the problem is centered text inside ring was not displaying. The following is the sample snippet. chart generation code And centered text related code is like below I am using jfreechart veri…
Set default Transaction Manager in @Transactional annotations?
I have a Spring Boot 2.x application with JPA/Hibernate and 2 separate Transaction Managers: 1 per-tenant and 1 application-wide. All entities, repositories and services are separated in different packages. Whenever I use @Transactional in my services, I need to explicitly qualify the txManager as either @Tra…
Failed Autowired of BuildProperties Spring Boot 2.1.5 & eclipse
I’m creating a very simple application with a few REST API’s and it’s currently working correctly until I try to use the BuildProperties on my health check API. While starting my application I get the following error: I went to the build file and I also looked in the jar file created by the …
Use DateTimeFormatterBuilder for parsing dates of missing day and default to end of month
I need to parse dates in various formats. Some of these are missing the “day”. Now I want to default to end of month. I am not sure if there is a direct way where we can default to end of month But if not, how can I know that the original date was missing the day (or that a
How to return all array permutations iteratively into a two-dimensional array?
I am trying to write a program that will iterate through all possible permutations of a String array, and return a two dimensional array with all the permutations. Specifically, I am trying to use a String array of length 4 to return a 2D array with 24 rows and 4 columns. I have only found ways to print the S…
How to get rid of TemporaryFolder rule in Junit5
I’m migrating unit tests from Junit4 to Junit5. In the test I’m using TemporaryFolder rule from Junit4 API. To keep the test working I added @EnableRuleMigrationSupport annotation: As I understand, in Junit5 I need to use extensions instead of rules, but I can’t find any replacement for Temp…
CDI events fire() create new observers instances
I’m writing a JavaFX application (JavaSE) with CDI (Weld). I’m trying to use CDI Events to replace the awful event system of JavaFX (JavaFX Properties). I was able to let CDI create my JavaFX controllers properly. It means that when a FXML is loaded, the controller is created by CDI (using FXLoade…
Can you access files on the remote FTP server with RandomAccessFile?
I’m trying to read the file on the FTP remote-server using Apache Commons Net library. retrieveFileStream returns InputStream and put it in BufferedReader. But, I want to use RandomAccessFile (to use the seek() method). I want to get Inputstream as a RandomAccessFile. Is it possible? Answer If you want …
how to zipping multiple files and encode to base64?
I have made a few lines of code and worked for a while, the program I created is like this. When I compress the .zip format, an example.zip file will be formed in the directory. The next step the program runs the command to look for the .zip filename in the directory. If found it will be converted into base64
How can I clear/reset the canvas with a counter or countdown in Processing?
I would like to know how can I set a reset loop: While the draw() is going on I would like to clear the canvas so I can start to draw on a clean canvas again and again. (I don’t want to use keyPressed() or mousePressed() it has to be automatic) Thank you for your help in advice! Answer You