- Overloading is using the same method name with a different parameter list.
- Overriding is replacing a superclass method with a different and/or more specific one in a subclass.
- Hiding is similar to overriding but not quite the same. In the special case where a subclass's static method has the same signature as a parent class's static method, the subclass's method hides rather than overrides the parent class's method. This makes the parent class's method completely unaccessible. TODO: Find out whether this is the only situation in which hiding applies.
Useful links
The best explanation I've found so far, from the JavaRanch FAQ
Also useful, from the Java Tutorials
This StackOverflow post is technically about .NET, but I think it's still correct for Java
Some examples from the Java Language Specification
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