Understanding Hashing in Java: Why hashCode() and equals() Matter 👍 A lot of developers new to Collections understand how to use a HashSet — but not many understand the mechanics behind it. That is ...

👇 🚀 The Golden Rule of equals() & hashCode() in Java One of the simplest — yet most powerful — principles every Java developer should master: 1️⃣ If two objects are equal, their hashCode() must be ...

If you are fortunate enough to be using JDK 7, the newly available Objects class is the obvious (at least to me) choice for implementing the “common” Java object ...

I previously blogged on the Apache Commons ToStringBuilder and discussed how it takes away much of the tedium normally associated with implementing toString methods. While implementing toString() does ...