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why does it print "String version" ?

 
Greenhorn
Posts: 9
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Hiya Ranchers,

Please take a look at the following piece of code.

public class AQuestion
{
public void method(Object o)
{
System.out.println("Object Verion");
}
public void method(String s)
{
System.out.println("String Version");
}
public static void main(String args[])
{
AQuestion question = new AQuestion();
question.method(null);
}
}
Answers
A.The code does not compile.
B.The code compiles cleanly and shows "Object Version".
C.The code compiles cleanly and shows "String Version"
D.The code throws an Exception at Runtime.

The correct answer is apparently C.
Any ideas, why ?

Thanks in advance !!

-Anup
 
Sheriff
Posts: 11343
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"Anup," please check your private messages by clicking on My Profile. Thanks!

With respect to your question, please see our SCJP FAQ: What is a most-specific method?
 
Ranch Hand
Posts: 131
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Hi!
That because,String IS-A Object.java invokes the "most-specific" method.
 
Ranch Hand
Posts: 274
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Hi Anup,

Have a look here as well,

https://coderanch.com/t/264802/java-programmer-SCJP/certification/overloaded-method-related

Gitesh
 
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