Tricky Interview Question : Pass null argument with method overloading of String and Object types

In this video, I have explained one tricky java interview question: Interview Question : Pass null argument with method overloading with String and Object types

In the case of null, null is valid for both string and object. So, which method will be called?

Object is a parent class and string is a child class. While resolving the overloading method, the compiler always uses the presidency for the child type argument. So, the compiler will call the method with the string argument.

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[yogeshnakat]

Answer is string Argument.
Because, resolving the overloaded method compiler will always gives precedence to child class when compared with parent ..

[SarangHoley]

Got to know a interesting fact that how compiler behaves is such situations 👍😊, thanks Naveen

[archanagupta]

I thought that object class is parent class so it would give priority to object, but today I learn new thing,
Keep it up to make this kind of vedio🙏🙏🙏

[SameerKumar-yuxi]

Once I have been asked some questions on interview
1) any 5 way to prevent your class to being inherited
2) what if when we write main method inside abstract class
3) main method overloading vs overriding and explain difference...
N surprisingly I was unable to answer 😂😂😂 pls sir you may take this question for next video if it make sense 🤗

[MamathaAvula]

String as the method overload in child class gets priority

[skb]

Excellent . Learning new everyday here. 👏

[pandudamera]

Object class I expected later when you were executing I understood that out put brother

[Bbangaram-du]

whenever u use string and stringbuffer classes both are child classes and both will match the argument since both will match the orgument then u will get compile time error. correct me if i am wrong. Thanks Naveen sir each and every video very informative

[sridharlanka]

Insightful !
sharing to as many as possible

[mahatheedandibhotla]

the current set of programs you have been covering is really nice naveen please do videos of things like these please dont do videos of common ones unless there are lots of requests

[tanugupta]

Thank you for such informative videos👍

[aminurrahaman]

BRO please make more this type of interview question videos... Try to give two videos a day.. this will help us in interview

[hello]

These kind of questions are mostly asked in OCJP certification, may be we can collect the questions from there and do a Seperate series for it..

[maheshtenapali]

Good interview questions sir. . thank you

[maheshz]

Hi Naveen you are doing great job testing community please try to cover security testing with one tool, database testing with tool ( etl) ( sql and nosql db), bigdata testing with one tool do series.Everyone one run behind selenium java python api so much content available in youtube. Please try to cover these parts atleast it will gain knowledge to other areas. Without watching your content testing no value

[funnyworld_]

Sir you take manual testing project session
Please tell me I want to do project

[jyotibaviskar]

I have two methods with same name and same number of parameters. Ome takes int one takes double. In main I make a object of class n call that method (10) . Which one method should it call integer one or double One

[arnavpatil]

String in overloading child get more priority than object

[arvindsah]

Can abstract class have main method? try answering theoretically.

[rahulsinha]

Hey naveen I m a big big big fan of your..
I need to ask like suggest some satisfying books that will give some ideas about The automations...
Plz plz share the link