Expert Engineer Interview Questions and Answers

Designing an elevator system for a multiple story building involves considering factors like capacity, speed, safety features, and energy efficiency.

• Consider the number of floors in the building to determine the capacity and speed requirements of the elevator.

• Incorporate safety features such as emergency stop buttons, sensors to prevent door closing on passengers, and backup power supply.

• Opt for energy-efficient components like LED lighting, regenerative drives, and standby m...read more

Using Java8, reverse a string by converting it to a character array, using the Stream API, and collecting the characters in reverse order.

• Convert the string to a character array using toCharArray() method

• Use the Stream API to create a stream of characters

• Collect the characters in reverse order using Collectors.joining() method