Quick study sessions to strengthen memory and retain key concepts.
Why should calculation methods be in classes like CartItem?
To keep related logic centralized and manageable. By placing calculation methods within relevant classes, you ensure that logic…
View Card →How do you access instance fields in an instance method?
Directly, or using the 'this' keyword. Frame the concept in practical terms so you can explain it during…
View Card →How would you explain a common pitfall when designing instance methods in an interview?
Overly complex methods can reduce readability and reusability. Instance methods should focus on a single responsibility. A `CartItem`…
View Card →Why are instance methods important for object state interactions?
They ensure consistent access and modification. Instance methods provide a structured way to interact with an object's state,…
View Card →How do you define an instance method in Java?
By creating a method that uses instance fields and does not have the static keyword. Instance methods are…
View Card →What are the consequences of not using instance methods?
Leads to less modular and harder-to-maintain code. Without instance methods, code may rely on external functions that manipulate…
View Card →When should behavior be on the object itself?
When the behavior closely relates to the object's data. Behavior that manipulates an object's data should reside within…
View Card →How would you explain an instance method in an interview?
A method that operates on an instance of a class. Instance methods can access instance fields and modify…
View Card →How can method placement affect class design?
Misplaced methods can lead to poor cohesion and tight coupling. Placing methods in inappropriate classes can scatter logic,…
View Card →Why move behavior closer to the data it operates on?
Improves cohesion and maintainability. Frame the concept in practical terms so you can explain it during interview discussion.…
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