We are currently evaluating to establish an internal company nexus repository for our java development. Unfortunately there are still some questions unanswered, but maybe you can help. A parent pom for all projects inside the company seems to be best practice. What is not clear is what this pom should contain…
How to show Heads up notifications android
How to get a heads up notification.With below code i can only see three dots on status bar and a notification in notification bar. Answer I was having the same problem, but I was using the newer NotificationCompat.Builder() call which requires a channel ID from a NotificationChannel. The notification will onl…
How to call a PostgreSQL stored procedure with Hibernate
I want to create a Stored Procedure in PostgreSQL to make some calculation and return it to My java call. I have tried Most of the option from Java-Hibernate but not able to succeed. Below is my SP. In Java How to call this procedure to get the values. NOTE: I’m not using hibernate XML files to call qui…
spring combine two validation annotations in one
I’m using Spring+Hibernate+Spring-MVC. I want to define a custom constraint combining two other predefined validation annotations: @NotNull @Size like this: and I want to use this annotation in my form models. UserController.java But it does not work. It accepts the less than 4 character passwords. How …
Unexpected character (“) at position 2 JSON Parser (Java)
Here is my JSON File beginning: And here is my Parser: I am trying to parse through this JSONfile using a FileReader and JSON and JSON-Simple libraries. I think my format of my JSON file is correct but I don’t know how to get past this error: Answer Your JSON is not correct. Kindly check It should be so…
Exception while trying to run java program from maven
I have a small java program that connects to a mysql db and reads data from it. I am able to run it successfully using java -cp but when I try to run it using mvn exec:java I get this exception after the program has finished: Why is this happening and how can I fix this? Here is my code
Java – Libgdx set the cursor to the hand pointer
I have been doing some research on libgdx and can’t find anything relating to this, you can set the pointer image but that isn’t what I’m wanting, I tried the set cursor with j frame and stuff but it wouldn’t work, what I want is for the default hand cursor to be set when it is called …
Start DialogFragment from Activity
I’m learning Android programming with IntelliJ right now and got a little problem. I’ve got an Activity which looks like this: And this is how my DialogFragment looks like I’ve tried nearly everything, creating a new instance and start the method, using FragmentManager, which i wasn’t …
Apache POI Parsing error
I know this question has been asked often, but couldn’t find a suitable solution. When working with or I always end up with the following error: People have suggested to open PackageRelationshipCollection and retry. But that didn’t help much. Also I have the jars loaded : Answer From the Apache PO…
How to pass System property to docker containers?
So I know you can pass Environment variables to a docker container using -e like: But I need to pass a System Property to a docker container, because this is how I run my JAR: So how can I pass a -D System property in Docker? Like: Answer Use the variable you passed into the container on the java command: