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If we dont downcasting the object and recall the method that exist in superclass and override in subclass which one is our output?(superclass method OR subclass method)

23rd Apr 2020, 4:19 PM
Amirhossein Zamanzade
Amirhossein Zamanzade - avatar
2 Answers
+ 4
Hello Amirhossein Zamanzade It calls the subclass method. Imagine you have a super class Mom and a sub class Kid. Let's say Kid has two methods, one own funOwn() and own inherited from Mom but overriden funOverride() The object is from type Kid but treated as Mom: Mom mo = new Kid(); mo.funOwn() -> it will not find this method because Mom has not such a method mo.funOverride() -> Mom has such a method, but Kid overrides it -> Kid's method is invoked Let's say Mom has also an own method: funMom() mo.funMom(); -> Mom has such a method, but Kid does not override it -> Mom's method is invoked. I hope this helps you.
23rd Apr 2020, 6:06 PM
Denise Roßberg
Denise Roßberg - avatar
+ 3
Here is a code where you can see it: Btw: when you down cast mo to Kid, than it is just a normal object from type Kid.
23rd Apr 2020, 6:27 PM
Denise Roßberg
Denise Roßberg - avatar