I faced with issue that I need use Liquibase migration without running application. (through the command ./gradlew update) I added the following section to one of my projects: This works, but it takes up a lot of space in build.gradle, and the same task needs to be added to other projects as well. Is it possi…
Tag: java
how to draw prespctive image in android canvas
i have searched about how to draw prespctive image in canvas like in the picture but i dont find anything thing. if its not possible using canvas, how i can make something like it? i find this:- but this cut the image. Answer This is possible by magic method of canvas drawBitmapMesh. This is example from my p…
How to correct the string returned based on a regex
Here is the message and Type message Type IND SMD 0402 1.2nH 50pH 390mA 100MOHM MAG What i’m trying to return is the 1.2nH For that i created a function as below This is returning me 50pH but actually i’m trying to return 1.2nH How could i correct my function ? Answer If you use the code to check …
How can I override object methods inside interface?
All classes in java extend the Object class implicitly. But that doesn’t concern interfaces. Interfaces can only extend other interfaces, but no classes. However, I can override object class methods inside my interface. Can you please explain in simple words how is this even possible? Is there any use c…
What is the difference between “int x = (int) x” and “x = (int) x” in java if I assign “double x = 2.3”?
if I assign “double x = 2.3”, what is the difference between “int x = (int) x” and “x = (int) x” ? I’m new to java and use python before, in python, if I execute “x = 2.3; x = int(x); print(x)”, x is 2. java: python: Answer You’re re-declaring x, so …
Is there a way to prevent Postgres triggers from triggering before Java/EclipseLink transaction commits
I have a Java application that connects to a Postgres DB using EclipseLink. My problem is that database triggers are triggered before the Java/EclipseLink transaction is completed causing the data to be incorrect. Example: There is a trigger to update a order_logs table every time there is an insert or update…
org.openqa.selenium.NoSuchElementException: no such element: Unable to locate element: not able to locate the element inside table tag
I was trying to locate the element which is present inside the table tag But iam getting the error “org.openqa.selenium.NoSuchElementException: no such element: Unable to locate element: {“method”:”xpath”,”selector”:”//div[@id=’divTable’]/child::div/…
How to make RethinkDB to call a java function whenever new insertion happens?
Hello all, I am new to Rethink-db can anyone help me with this as i mentioned in above query. I am creating one java service with Rethink-db so whenever new entries inserted into Rethink-db a java method should call by Rethink-db itself with data that i inserted. And is this possible to achieve it? Thanks. An…
Java AES Decryption with keyFile using BouncyCastle SSL
I am trying to write a Java code decrypt a file encrypted with AES256 using BouncyCastle compatible with OpenSSL decryption. s_key is the file provided which contains the key that will be used to encrypt and decrypt Steps to be done: 1 – Read the key file 2 – Use the key provided to decrypt file i…
How to handle exceptions in event handler in Axon
I am building a monolith project using Axon framework. I have a method here that dispatches an event And this is my event handler that might throw an exception My question is, how should I handle the exception? I thought of two things: Should I dispatch an event from the event handler to reverse the transacti…