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

Assuming class Foo is declared as below

class Foo 
{

    public int a = 3;

    public void addFive()
    { 
        a += 5; 
        System.out.print("f ");
    }
}

1. Variables have no concept of overriding. They are just masked.
2. It is printing 3 because, when you use a superclass reference to access a variable, it accesses the variable declared in superclass only. Remember that superclass doesn't know anything about subclass.