oop - Can method overloading be considered a way of describing polymorphism in Java? -


so, studying head first java , there read -

an overloaded method different method happens have same method name, has nothing inheritance , polymorphism.

however, have famous book named java - complete reference herbert schildt , in book, read:

method overloading 1 of ways java supports polymorphism. method overloading supports polymorphism because 1 way java implements “one interface, multiple methods” paradigm.

which 1 of them correct?

can method overloading considered way of describing polymorphism in java?

no these 2 different concepts.

i think incorrectly understood author means.

i stressed in bold important part :

method overloading 1 of ways java supports polymorphism. method overloading supports polymorphism because 1 way java implements “one interface, multiple methods” paradigm.

it means overloading , polymorphism not incompatible.

for example, may have interface defines overloaded method :

public interface doable{    void dox(string s);    void dox(integer s) }

suppose mydoable implementation of , mychilddoable subclass of mydoable.

when write :

mydoable mydoable = new mychilddoable();  mydoable.dox("a")

the compiler bound invoked method void dox(string s); (overloading) @ runtime, method of instance (mychilddoable) used (polymorshism).


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