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interface inter
{
String str="vow";
}
class gen
{
String str="super";
}
public class test extends gen implements inter
{
public static void main(String args[])
{
System.out.println(str);
}
}

I saw this question in some mock before two days.I forgot its name.Sorry.

What will be he output.
The answer given was "jvm will be confused"
It can only access inter's str right because that alone is implicitly static while str of gen needs an instance to invoke.

Please clarify

Thanks
Praveen SP
 
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Hi praveen

When you compile this code , you got the exception

reference to str is ambiguous, both variable str in testproject.gen1 and variable str in testproject.inter match

System.out.println(str);

1 error

Because str have both class and interface.

You should mentioned, whether str should be the interface or class.
 
Praveen Seluka
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Hi

I did not understand the explanation given.
System.out.pritnln(str);

"this str refers to str of inter since its called from the static context,and if we need to access gen's str we need an instance"

Please clarify
Thanks
Praveen SP
 
krishnamoorthy kitcha
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Hi praveen

If you want access the string in the interface

Just give the System.out.println(inter.str)

or else
You want access the string in the class

Just create the class instance , then access the string.
Class gen a = new gen();

a.str;

System.out.println(a.str)


Do you want understand ? Why we are creating the instance in the class but not in the interface.

Because interface motheods and members are always public and static.

But in the class you are defined defeault.
 
Praveen Seluka
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hi jesper young

I did not post it twice.Dont know how it got posted twice.

And I shall give a valid subject hereafter

Thanks
Praveen SP
 
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