I have occasionally heard the terms method overloading and method overriding used interchangeably. While the difference between these two concepts can be relatively easily explained, the ...

Get started with polymorphism in Java and how to do method invocation in polymorphic method calls.

I'm getting better with Java, even to the point where I'm almost comfortable with it, but the purpose behind one concept still eludes me: What is method overriding, and why should I care about it?