
How Does the Default hashCode() Work?
Java's Object class has a hashCode() implementation. But what does it do? Where do the values, often mistakenly assumed to be memory addresses, come from?
Java's Object class has a hashCode() implementation. But what does it do? Where do the values, often mistakenly assumed to be memory addresses, come from?
Implementing Java's hashCode is a fundamental task for any Java developer, but the devil is in the details. Nicolai Parlog explains how to do it correctly.