Internet Computing - Quiz 1

To program in Java we must have an IDE (true/false)

Java program is ____ and ____ to native machine code

In the context of Object oriented programming, classes have ____ and _____

Objects are templates for Classes (true/false)

Objects are instances of classes and objects have an identity (true/false)

Steps for running a java program

The file name must match the name of the public class defined in a file (true/false)

If a class has an attribute of which is another class, the relationship is called:

____ is the keyword used to connect classes and interfaces

The order of access modifiers from most restrictive to not restrictive

Interfaces are provided for clients to access a component. Interfaces ensure a proper ____ of the component

List ______ duplicate entries

Set ____ duplicates

_____ is the keyword if you do not want a class to be inherited by others

______ are used to organize related classes

Aggregation in OOAD defines ____ relationship between 2 classes

Inheritance in OOAD defines ____ relationship between 2 classes

A superclass implements an interface in Java (true/false)

Keyword to invoke the constructor of the superclass

______ is termed as creating a new method with the same signature as a method in the superclass

To describe the interactions between actors and use cases in a system

Which type of relationship in a use case diagram indicates that an actor is involved in a use case?

Not a part of the Java collection framework

The method to create hierarchy between classes by inheriting other classes

base class used to provide common interface/behavior for its subclasses; cannot be instantiated

Methods declared in an abstract class do not have any implement; signature of a method

Keyword to implement inheritance

Accessible to everyone

Protected access; only access to classes in a current package

Can only be accessed within the class or classes that are inheriting from classes

Can only be accessed within the class

Methods used to initiate a class and its attribute

Creates one copy for the entire scope (class)

Prohibits overriding of method and extensions of classes

A collection of abstract methods and static final variables that defines a set of behaviors for a class to implement;

Utilized in polymorphism to set up methods to be overridden later with actual class instantiations

Allows objects of different classes to be treated as if they were objects within the same class

Same method name, different parameters

Same method but subclass overwrites superclass's method

Prioritizes the order of elements, contains null and duplicates

Order does not matter and can only have unique values

Allows a null

key-value pairs, keys cannot be duplicates but values can