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).
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The Comparable interface contains which of the following methods?
a) isGreaterThan b) isLessThan c) equals d) compareTo e) all of the above
The first and getNext functions (the iterator) cannot be used in the remove function to find the node to remove because:
A. a class function cannot call any other class functions B. they aren’t called directly by the client, so they don’t know what to search for C. the first and getNext functions just return the elements within nodes, and the remove function needs to know the address of the node to remove D. it would be impossible to return the element using the reference parameter
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?
The Picture Effects button is in the Picture Styles group on the ________ tab
A) Format B) View C) Insert D) Home