Spring Boot S3 Presigned Url Upload/Download File What is presigned url and why should we use? Presigned URLs let us upload and download files without going through our service directly. This helps save resources and reduces the load on our systems. …
Tomcat10 Spring Boot 3 & Java 17 deployment on Ubuntu Server Hello! Today we will deploy our spring boot application on a remote server. While trying to deploy my java17 spring boot app I faced some issues and there was no resource. That’s the motivation for this article :) Thanks to Erkan Yenier for their support. …
We’re familiar with access modifiers however, have you ever heard of Java’s non-access modifiers? abstract— This modifier is used to create an abstract class or method that cannot be instantiated directly. An abstract class must be extended by a subclass that provides concrete implementations of its abstract methods. …
Java Shell & REPL | no more public static void main What is REPL? R(ead) E(val) P(rint) L(oop), is an interactive programming environment that allows you to enter code snippets or expressions and immediately see the results of their evaluation. …
Imagine that, you want to make a chat application for communicating with your friend. You will send and receive messages. But there is a problem. When you send a new message to your friend how will you inform him? …