Brillo Technologies Senior Engineer Interview Questions and Answers

Q1. Internal working of hashmap
Ans. 
HashMap is a data structure that stores key-value pairs and uses hashing to quickly retrieve values based on keys.
• HashMap internally uses an array of linked lists to store key-value pairs.

• When a key-value pair is added, the key is hashed to determine the index in the array where it will be stored.

• If multiple keys hash to the same index, a linked list is used to handle collisions.

• HashMap uses the hashCode() method of ke...read more
Answered by AI
Add your answer
Q2. What are the feature of jdk 8
Ans. 
JDK 8 features include lambda expressions, functional interfaces, streams, and default methods.
• Lambda expressions allow you to write code in a more concise and readable way.

• Functional interfaces enable the use of lambda expressions.

• Streams provide a way to work with sequences of elements efficiently.

• Default methods allow interfaces to have concrete methods.

• Date and Time API improvements.
Answered by AI
Add your answer

Q1. Manual testing, regression, test plan and test suite
Add your answer

Live coding on my technology

Q1. Oops, solid principles, mvc vs mvvm vs mvp
Add your answer

Q1. About ur self and recent achievements
Add your answer

Q1. Power BI DAX calculations
Add your answer

Q1. RLS Implementation
Add your answer

Q1. Java Multithreading
Add your answer
Q2. Core java using java 8 features
Ans. 
Core Java features in Java 8 include lambda expressions, functional interfaces, streams, and default methods.
• Lambda expressions allow you to pass functionality as an argument to a method.

• Functional interfaces have a single abstract method and can be used with lambda expressions.

• Streams provide a way to process collections of objects in a functional style.

• Default methods allow interfaces to have methods with implementat...read more
Answered by AI
View 1 more answer
Q3. Oops concepts in java
Ans. 
Oops concepts in java refer to Object-Oriented Programming principles like Inheritance, Encapsulation, Polymorphism, and Abstraction.
• Inheritance: Allows a class to inherit properties and behavior from another class.

• Encapsulation: Bundling data and methods that operate on the data into a single unit.

• Polymorphism: Ability of a method to do different things based on the object it is acting upon.

• Abstraction: Hiding the imp...read more
Answered by AI
Add your answer
Q4. Spring MVC and Batch
Add your answer
Q5. Basic SQL queries, joins and all
Add your answer

Q1. Java 8 vs 7 case studies. Stream vs collections case studies.
Ans. 
Java 8 introduced streams which are more efficient than collections in certain cases.
• Streams are useful for processing large amounts of data in parallel

• Collections are better for small amounts of data or when modifying data

• Java 8's stream API provides a functional programming approach to data processing

• Java 7's collections API is more traditional and imperative

• Example: Using streams to filter and map data from a databa...read more
Answered by AI
Add your answer

Q1. Add one to a given String of number
Ans. 
Add one to a given String of number
• Convert the string to integer, add one, and convert back to string

• Handle edge cases like leading zeros

• Consider using built-in functions like parseInt() and toString()
Answered by AI
Add your answer

Q1. Hash map implementation. exception handling in lambda exp. microservices architecture.
Add your answer

Q1. Why u want to join?
Add your answer