overriding a variable in java

Question

public class Foo {
      public int a = 3;
    public void addFive(){
        a += 5; System.out.print(\"f \");
    }
}

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public class          


        

Answer 1

Declaring public int a = 8 in Foo class instead of Bar class it should work... printing B 3.

But I suppose you are talking about a question included in the Java certification exam, so you have to correct the code of the Foo class adding public int a = 3.

You cannot override a variable in Java, but declaring in as public (or protected) in the super-class you can use it also in all inherited classes.

In this case the right output is B 13 because in the test class you are using a Bar object as a Foo object, so the value of a is 3 and not 8.