Citibank Technical Architect Interview Questions and Answers

Designing a functional and efficient parking lot layout.

• Consider the size and shape of the lot

• Include designated spaces for different types of vehicles (compact, regular, handicap)

• Incorporate clear signage and markings for easy navigation

• Include lighting for safety and security

• Consider landscaping and green spaces for aesthetics

Immutable class in Java cannot be modified after creation.

• Use the 'final' keyword to make class immutable.

• Make all fields private and final.

• Do not provide setter methods.

• Ensure that any mutable objects within the class are also immutable.

• Return a new instance when modifying the state of the object.