Which pattern helps us eliminate if statements that check for null references?
Null object
The _______________ pattern converts the incompatible interface of a class into another interface the clients expect.
Adapter
Which design pattern used the example of families of pizza ingredients?
Abstr...
software engineering final exam answered which pattern helps us eliminate if statements that check for null references null object the pattern converts the incompatible interface o
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Software Engineering Final Exam
(Answered)
Which pattern helps us eliminate if statements that check for null references?
Null object
The _______________ pattern converts the incompatible interface of a class into
another interface the clients expect.
Adapter
Which design pattern used the example of families of pizza ingredients?
Abstract Factory
Which pattern was motivated by the textbook example of weather data displays?
Observer
Which design pattern is best described by the example of a video game character
weapon that changes it's characteristics based on various criteria; for example, a
wooden sword or a steel sword or a Valryian steel sword.
Strategy
Choose the pattern that would cause you to add the following code fragment.
n.accept(v);
Visitor
The template method introduced us to which design principle?
Hollywood Principle - "Don't Call Us, We'll Call You"
The Singleton design pattern textbook motivating example was what?
Chocolate Boiler
As the textbook presents it, which of the following is the "dark side" of Java's
Observable?
It is an abstract class, so it MUST be extended; and your class may already be a
subclass. :(
In the Template Method design pattern, how do we, as designers, provide subclasses
the option of adding custom behavior at key points, such as before/after the algorithm
steps.
We add a "hook" method that subclasses can override.
With which design pattern did the book introduce the design principle of "encapsulate
what varies."
Strategy
Which pattern appears in the Java JDK as ActionListeners on various Swing GUI
components?
Observer
The ________ pattern provides an interface for creating families of related or dependent
objects without specifying their concrete classes.
Abstract Factory
The__________
design pattern attaches additional responsibilities to an object dynamically; thus,
providing a flexible alternative to subclassing for extending functionality.
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