This article gives you the inner power of reflection. Actually speaking there is no concept of hacking. It is just a tweak you can make to a java object through reflection. In this article I will ...

This post shows readers how to create an array in Java. Including: Array Lists, multidimensional arrays, maps, and more.

Copying objects is a common Java programming operation that has one serious trap. Here's how to avoid copying from an object reference and only copy the instance and values you want.

This tutorial explains how a Java HashMap works internally and explores the challenges of implementing it, including buckets, collisions and hash codes.

Java 11 is getting long in the tooth, so many developers are moving to the next oldest version that's still supported, Java 17. Here's what's different.