Interfaces – Sharp: NCLEX, Java & Python

Java: Interfaces

How do interfaces improve testability in Java applications?

Why does default methods in modern Java interfaces matter in this design?

How can a class resolve method signature conflicts from multiple interfaces?

Why do teams use interfaces over abstract classes in production code?

Why might you use a marker interface in Java?

How would you explain a functional interface in a Java interview?

How do interfaces enable multiple capabilities in Java?

Why are interfaces crucial for testability and substitution in Java applications?

Why is loose coupling important in software design?

When is an interface usually a better fit?