Core Java – Page 2 – Sharp: NCLEX, Java & Python

Java: Wrapper Types and Autoboxing

What is unboxing in Java?

When might you prefer primitives over wrappers?

How can autoboxing lead to hidden bugs in loops?

How would you explain a common mistake when using wrapper classes in an interview?

Autoboxing: What is it?

How do you declare a variable for a product SKU?

Performance tradeoffs: When is primitive better?

What are the tradeoffs of using double for currency?

Unboxing pitfalls: What can go wrong?

Why use descriptive variable names like productPrice?