Overview Spring Boot 3 came out with a lot of promises. The most prominent thing is the native image build. I currently deploy my apps as a fat jar in containers with JRE and it took around 20s to boot up. Thus, I would love to try the native build to see if is there … Read more
Overview Reading files is quite a common task in Java programming, and there are several ways to do so without relying on external libraries. In this tutorial, we will discuss four different ways to read text files in Java 8+ using built-in classes and APIs. We will go over examples of how to read text … Read more
Overview ThreadLocal provides a mechanism where multiple threads can store their own data on a single ThreadLocal object. You can think of ThreadLocal as a bank. Multiple can go to a single bank, deposit, and withdraw money. It is also the analogy of this tutorial. ThreadLocal Quick Example Using the bank analogy, let’s say there … Read more
Introduction If you run the following code: There are chances you will get the following exception: I said “there are chances” because you run the same code repeatedly, and sometimes there is no exception thrown. So, what is ConcurrentModificationException and when you might encounter it. The JDK’s said: This exception may be thrown by methods … Read more
Introduction The Adapter design pattern is a structural pattern that allows objects with incompatible interfaces to work together. It does this by converting the interface of one class into another interface that the client expects. This pattern is often used to make existing classes work with each other without modifying their source code. Real-world example … Read more
Introduction The proxy pattern is a structural design pattern. It is used to provide a surrogate or placeholder object for another object, which can be used to control access to the original object or to add additional functionality. Use Cases Use the proxy pattern when: The client (the one who needs the functionalities of the … Read more