Consider the abstract superclass below:

```
public abstract class Foo
{
private int a;
public int b;

public Foo(int aVal, int bVal)
{
a = aVal;
b = bVal;
}

public abstract int calculate();
}
```

Any concrete subclass that extends class Foo:
a. Must implement a method called calculate.
b. Will not be able to access the instance variable a.
c. Neither (a) nor (b).
d. Both (a) and (b).


d. Both (a) and (b).

Computer Science & Information Technology

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The first and getNext functions (the iterator) cannot be used in the remove function to find the node to remove because:

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Using recursion, revise the destructor in the class LinkedListso that it deletes each node of the underlying linked chain.

What will be an ideal response?

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The Picture Effects button is in the Picture Styles group on the ________ tab

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