overloading without overriding

Bar.java

package polymorphism.overloadingWithoutOverriding;

public class Bar extends Foo {
	// Don’t be fooled by a method that’s overloaded but not overridden by a
	// subclass. It’s perfectly legal to do the following:

	void doStuff(String s) {
	}

	// The Bar class has two doStuff() methods: the no-arg version it inherits
	// from Foo (and does not override), and the overloaded doStuff(String s)
	// defined in the Bar class. Code with a reference to a Foo can invoke only
	// the no-arg version, but code with a reference to a Bar can invoke either
	// of the overloaded versions.
}

Foo.java

package polymorphism.overloadingWithoutOverriding;

public class Foo {
	void doStuff() {
	}
}