Java – Page 133 – Sharp: NCLEX, Java & Python

Java: Constructors

Why does a constructor matter in this design?

Why might you use constructor parameters?

What happens if you forget to initialize a field in a constructor?

What's a design issue with setting mutable fields directly in constructors?

How does a constructor differ from a method?

How would you explain a brittle hierarchy in an interview?

Can a class extend multiple classes in Java?

What is reuse by collaboration?

What is composition in Java?

Why might you prefer composition over inheritance in Java?