Acutech Solutions Backend Developer Interview Questions and Answers

Using Java 8 Streams to filter employees by the second highest age efficiently.

• Use a List<Employee> to store employee data.

• Sort the employees by age in descending order.

• Use distinct() to remove duplicates in ages.

• Skip the first age and limit the result to one to get the second highest age.

• Filter employees whose age matches the second highest age.

Spring is a framework while Spring Boot is an extension of Spring. Spring Boot uses annotations to simplify configuration.

• Spring is a framework for building Java applications

• Spring Boot is an extension of Spring that simplifies configuration

• Spring Boot uses annotations to configure the application

• Spring Boot provides a lot of defaults and auto-configuration

• Spring Boot is ideal for microservices and cloud-native applica...read more

I honed my analytical skills through various projects in my previous roles, focusing on data interpretation and stakeholder communication.

• Worked on a project analyzing customer feedback data to improve product features, resulting in a 20% increase in user satisfaction.

• Collaborated with cross-functional teams to gather requirements for a new software tool, ensuring alignment with business objectives.

• Utilized SQL and Exc...read more

Remove duplicate objects from an array of multiple objects.

• Create a new array to store unique objects

• Loop through the original array and check if the object already exists in the new array

• If not, add it to the new array

• Return the new array

Maintain state by using a global variable or a state management system.

• Use a global variable to store the state and access it whenever needed.

• Use a state management system like Redux or MobX to manage the state.

• Avoid using local variables or closures to store state as they will be lost when the code is repeated.

• Consider using object-oriented programming principles to encapsulate state within objects.

• Use functional prog...read more