Quick study sessions to strengthen memory and retain key concepts.
When is it beneficial to use multiple constructors?
To provide different ways to instantiate objects. Multiple constructors, or constructor overloading, allow creating objects with varying initial…
View Card →What happens if a constructor directly sets a mutable object field?
It may lead to data leaks or security issues. If a constructor directly assigns a mutable object field,…
View Card →How would you explain a common mistake with constructor initialization in an interview?
Forgetting to initialize all fields. Frame the concept in practical terms so you can explain it during interview…
View Card →Why use constructor parameters in Java?
They allow initializing fields with specific values. Constructor parameters enable setting initial values for an object's fields at…
View Card →What does Java provide if no constructor is defined?
Java provides a default constructor. Frame the concept in practical terms so you can explain it during interview…
View Card →Why are constructors important in early object design?
They make the required setup visible and help objects start in a usable state. Constructors are where object…
View Card →How can deep inheritance hierarchies lead to brittle code?
They create tight coupling and make it difficult to change or extend behavior. Deep inheritance hierarchies can make…
View Card →How would you explain a common design judgment when deciding between inheritance and composition in an interview?
Favor composition for flexibility and easier maintenance. In object-oriented design, using composition over inheritance can lead to more…
View Card →What are common pitfalls of using inheritance?
Inheritance can lead to tight coupling and fragile hierarchies. Common pitfalls of inheritance include creating tightly coupled systems…
View Card →What keyword is used for inheritance in Java?
The 'extends' keyword is used. Frame the concept in practical terms so you can explain it during interview…
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