Method overloading is one of the ways that Java implements polymorphism.
Overridden methods allow Java to support run-time polymorphism.
ie. Overridden methods are another way that Java implements the "one interface, multiple methods" aspect of polymorphism.
this answer is according to my knowledge gained from a book called "The Complete Reference (JAVA2 third edition)"
please check pg.158(Overloading Methods) & pg.215(Overridden Methods)
if this is not the case then please give me a detailed explaination for this.