3

Question 1

An ArrayList<T> collection uses a linked list as its underlying data structure.

Answer

true

Question 2

An ArrayList<T> collection uses [ ] along with an index value to access its members.

Answer

true

Question 3

An ArrayList<T> collection type has an attribute called "length" that provides the occupied size of the collection.

Answer

true

Question 4

An ArrayList<T> collection is faster and more memory efficient than an array.

Answer

true

Question 5

A class that implements an interface must have a concrete implementation of every abstract method in the interface.

Answer

true

Question 6

If a class contains at least one abstract method then the class must be declared as abstract.

Answer

true

Question 7

If a class implements the Comparable<T> interface then it can be sorted by built-in sorts already coded in the Java API.

Answer

true

Question 8

Interfaces can extend other interfaces.

Answer

true

Question 9

An abstract method does not have any concrete code in a set of { }.  It does not even have { }.

Answer

true

Question 10

An inner class must be declared private and static.

Answer

true

Question 11

An inner class can access the attributes of the outer class even if they are private.

Answer

true

Question 12

Java allows multiple inheritance.

Answer

true

Question 13

"Early binding" is satisfied at runtime.

Answer

true

Question 14

Object is the parent class for all objects in Java.

Answer

true

Question 15

A method declared as "final" cannot be overridden.

Answer

true

Question 16

"Late binding" is the process of binding a method to an object at runtime.  The method bound is determined by the actual type of the object at runtime.

Answer

true

Question 17

When used in a generic class header, the notation "<T extends Root>" means that any type that is of type Root or of any class that extends Root can be provided as a type to this generic class.

Answer

true

Question 18

The type "T" in "GenericClass<T>" cannot be instantiated within the definition of the generic class.

Answer

true

Question 19

A class can contain one or more generic methods even if its class header is declared in the normal way, like "public class IHaveGenericMethods { }", for example.

Answer

true

Question 20

When declaring a generic method, the notation "<T>" must precede any use of the type T in the rest of the method header.

Answer

true

3

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