Which of the following is an disadvantage of strategy pattern?
Disadvantages: The application must be aware of all the strategies to select the right one for the right situation. Context and the Strategy classes normally communicate through the interface specified by the abstract Strategy base class.
Which of the following is a disadvantage of design pattern?
Disadvantages. Using design patterns requires extensive knowledge. Having design patterns available can also lead to people believing that apparently all problems can be solved using existing design patterns. In short, this can limit creativity and the desire to find new (better) solutions.
What are the advantages of iterator design pattern?
Iterator Pattern: Advantages The code is easier to use, understand and test since the iterator uses the Single Responsibility and Open/Closed SOLID principles. The Single Responsibility Principle allows us to clean up the client and collections of the traversal algorithms.
What is the purpose of the iterator pattern?
Definition. The essence of the Iterator Pattern is to “Provide a way to access the elements of an aggregate object sequentially without exposing its underlying representation.”.
What design pattern could help to reduces memory consumption?
The Flyweight design pattern falls in the structural category. The Flyweight pattern helps reduce memory consumption when working with many similar objects at the same time.
What problem does strategy pattern solve?
Problem. The strategy pattern is used to solve problems that might (or is foreseen they might) be implemented or solved by different strategies and that possess a clearly defined interface for such cases.
How problems can be designed and solved using design pattern?
Design patterns solve many problems object-oriented designers face. Designing appropriate objects – The most complex part of any object-oriented design is decomposing a system into objects. So design patterns helps you identify your problems and create objects that can capture them.
Why use design pattern explain the components of a design pattern discuss the advantages and disadvantages of design patterns?
Design patterns are programming language independent strategies for solving a common problem. That means a design pattern represents an idea, not a particular implementation. By using design patterns, you can make your code more flexible, reusable, and maintainable.
What are the advantages of design patterns?
Design patterns help promote easier program changes and object reusability. Loosely coupled objects are easier to reuse and change. Keeping objects small and specialized promotes loose coupling. Design patterns are built with many small specialized objects.
What are the characteristics of creational design pattern?
A system should be independent of how its objects and products are created. A set of related objects is designed to be used together. Hiding the implementations of a class library or product, revealing only their interfaces. Constructing different representation of independent complex objects.
What is the applicability of state pattern?
Applicability. Use the State pattern in either of the following cases: An object’s behavior depends on its state, and it must change its behavior at run-time depending on that state. The State pattern puts each branch of the conditional in a separate class.
Which of the following is the intent advantage of the iterator pattern?
The iterator pattern allow us to: access contents of a collection without exposing its internal structure. support multiple simultaneous traversals of a collection. provide a uniform interface for traversing different collection.