Java / Design Patterns
How to prevent creating another instance of Singleton during serialization?
You can prevent by using readResolve() method since during serialization readObject() is used to create an instance and it returns new instance every time. However, by using readResolve you can replace it with original Singleton instance.
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What is design pattern in Java?
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Name few design patterns used in standard JDK library in Java.
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Difference between Strategy and State design Pattern in Java.
Singleton pattern.
How to implement a singleton pattern?
Why do we need Singleton class? (or) what are the advantages of using singleton pattern?
What is Decorator pattern in Java?
Give an example of Decorator pattern in Java.
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When to use Setter and Constructor Injection in Dependency Injection pattern?
Explain Composite design Pattern in Java.
Explain Front controller design pattern in Java/J2ee.
Explain MVC design pattern in J2EE.
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Explain Facade design pattern.
Types of Java Design patterns.
Name few Creational Patterns in Java.
Name some of the structural design patterns in Java.
Name some of the Behavioral design patterns in Java.
Explain Builder Design Pattern.
Explain Factory pattern in Java.
Difference between Service Provider Interface (SPI) and Application Programming Interface (API).
Explain Service Provider framework pattern.
Explain telescopic constructor pattern in Java.
Explain Java beans pattern.
Disadvantages of Java beans pattern.
Explain builder pattern in Java.
Disadvantage of Builder pattern.
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In Java singleton, how do you prevent creating instance using reflection?
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Explain Template method design Pattern in Java.
What is filter pattern in Java?
Explain Proxy design pattern in Java.
What is Adapter pattern in Java?
Difference between the Bridge and Adapter pattern in Java.
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Explain Intercepting Filter pattern in Java.
Disadvantage of using factory pattern for object creation.
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Disadvantages of the singleton pattern.
Which classes are candidates of Singleton?
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How to prevent creating another instance of Singleton using clone() method?
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Explain Command design pattern in Java.
What is State Design Pattern in Java?
When cloning an object is preferred over creating a new object in Java?
Name some of the design patterns that makes use of singleton pattern.
Explain Memento pattern in Java.
When do you use memento design pattern ?
Explain visitor pattern in Java.
What is value object design pattern?
What is Transfer object design pattern in Java?
Explain Service Locator design pattern in Java.
Mention some of the core J2EE design patterns.
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Advantages of Factory method design pattern.
What is a monolithic architecture?
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Disadvantages of Immutable class.
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