Java Design Patterns Interview Questions Links: Why do Proxy, Decorator, Adapter, Bridge, and Facade design patterns look very similar? What are the differences? | Builder pattern and immutability in Java | …
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14: Singleton design pattern in Java & 5 key follow up Interview Q&As
When you are asked in job interviews to explain a design pattern that you had used, many pick “singleton” as it is easy to explain. But, “singleton” design pattern does have …
Builder pattern and immutability in Java
Next time you are asked to explain a design pattern in an interview, you could pick this as opposed to the very common factory and singleton design patterns. Q1. How will …
Design pattern intents interview Q&A
Q1. Why do Proxy, Decorator, Adapter, Bridge, and Facade design patterns look very similar? A1. Some design patterns do have subtle differences, and it is important to understand the intent of …
Flyweight design pattern to improve memory usage & performance
Flyweight pattern is about sharing a collection of objects. The flyweight design pattern is a structural pattern used to improve memory usage and performance (i.e. due to shorter and less frequent …
Java ExecutorService with strategy design pattern to execute concurrently & sequentially
Java executor framework for running multi-threaded applications concurrently, sequentially, and with a strategy design pattern to switch between sequential and concurrent execution. 1. Running concurrently
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Proxy design pattern in Java with service retry example
Design pattern: If you are asked to describe or talk about a design pattern, you could mention this dynamic proxy class as a proxy design pattern. Many pick either singleton or …
Why do Proxy, Decorator, Adapter, Bridge, and Facade design patterns look similar? What are the differences?
There are often patterns that look very similar, but differ in their intent. Most patterns use polymorphism with interface inheritance. Strategy and state design patterns are very similar as well. Proxy, …
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