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Inner class

 
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Any one can you solve this problem and explain how?

In the following code for a class in which doSomething has an inner class, which variables would the statement in line 13 be able to use in place of XX?

public class Qa2

{
private static final int ID = 3;

private String oha;

public void doSomething( final int yy )

{

int number = 3;

class Palmovka

{

float fifi = 28.45F;

void doSomethingMore()

{

System.out.println(XX);

}

}
}

new Palmovka().doSomethingMore();

}

}
 
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Please always put your code in "code" tag. It improves readability.
 
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Rex
System.out.println(XX) here can use the int ID variable only since it is final.

Why ?
Because method-local innner classes can only access final local varibles of method in which they are defined .
 
Greenhorn
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Following are the legal variables that you can use:

System.out.println(yy); -- final local variable can be used in a method local class.

System.out.println(fifi); -- its the instance variables for the class

System.out.println(ID); -- all members(even private) of the outer class are accessible to the innerclass

System.out.println(oha); -- all members(even private) of the outer class are accessible to the innerclass

System.out.println(number); this is illegal as variables local to a method cannot be accessed by the inner class, to access we have to make them final.

Hope this helps.
 
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