Volante Technologies Support Engineer Interview Questions and Answers

Q1. Abstract and interface difference
Ans. 
Abstract classes are classes that cannot be instantiated and can have both abstract and non-abstract methods. Interfaces are a collection of abstract methods.
• Abstract classes can have constructors, interfaces cannot

• A class can implement multiple interfaces, but can only inherit from one abstract class

• Interfaces can be used to achieve multiple inheritance in Java

• Abstract classes can have instance variables, interfaces c...read more
Answered by AI
Add your answer
Q2. Current project
Ans. 
I am currently working on a project to develop a web-based inventory management system.
• Developing a user-friendly interface for managing inventory

• Implementing database functionality to store and retrieve inventory data

• Integrating with other systems to automate inventory updates

• Creating reports and analytics to track inventory levels and trends
Answered by AI
Add your answer

Sort array without using any inbuilt method?

Min and max value from an array of integers, reverse of a string

Q1. Data Structures, Algorithms, Understand Common Problem Patterns,
Add your answer
Q2. Advance Laravel and PHP
Add your answer

Easy coding questions DSA

Q1. Reverse a linked list
Ans. 
Reverse a linked list by changing the pointers direction
• Start with three pointers: current, previous, and next

• Iterate through the linked list, updating the pointers to reverse the direction

• Update the head pointer to point to the new first node
Answered by AI
Add your answer
Q2. Find middle of linked list
Add your answer

Q1. Pick from a basket of oranges
Ans. 
The question is asking to pick an orange from a basket.
• Carefully select a ripe orange without any bruises or blemishes

• Gently twist the orange off the stem to avoid damaging the fruit

• Check for firmness and weight to determine ripeness
Answered by AI
Add your answer

Java coding questions, basic Java questions.

Q1. Java basics questions.
Add your answer
Q2. Live coding.
Add your answer

Q1. Discussion on previous experience and projects.
Add your answer
Q2. System design question
Add your answer

Q1. Questions on SQL, Java advanced, personal projects, Java frameworks, UI based questions, Agile methodologies.
Add your answer
Q2. Interview discussion with the whole team.
Add your answer

Q1. Benefits discussion.
Add your answer
Q2. Salary discussion.
Add your answer

Q1. Oops concepts and projects
Add your answer
Q2. Collections, multithreading
Add your answer

It was simple program of url shorting for registered and non registered users each request must have unique shortened url.

Q1. Palindrome implementation and run time
Ans. 
A palindrome is a word or phrase that reads the same backward as forward. Implementing it involves comparing the first and last characters and iterating towards the middle.
• Implement a function that takes a string as input and returns true if it is a palindrome, false otherwise.

• Use two pointers, one starting from the beginning and the other from the end, and compare the characters at each position.

• If the characters matc...read more
Answered by AI
Add your answer
Q2. DSA and various algorithms and run time
Add your answer

Q1. This round was one on one with VP of engineering. Basic q and a regarding role and responsibilities
Add your answer

Q1. Relocation, Reason For job change, future plan, careers objective
Add your answer

Q1. Basic questions on data structures
Add your answer

Q1. Second round was Managerial Round. The interviewer basically had a conversation with me and asked some hr questions also.
Add your answer

Q1. Basic HR questions
Add your answer

Scenarios base conding round

Questions on strings in javascript.
Basic javascript and typescript.

Q1. Questions on cloud technologies
Add your answer

Q1. Cultural fit and salary related discussion
Add your answer