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…
Tag: java
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:
find the compiled class version number
My project consists of some third party jar files, which was compiled in different version of java. My project is using older version of java so i am getting UnsupportedClassVersionError while executing the application. Is there any other way to get the version of java/jre number[45..51] in which the class fi…
A zero-indexed array given & An equilibrium index of this array [closed]
Closed. This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed last month. Improve this question A zero-indexed array A consisting of N integers is given. An equilibrium in…