Brillo Technologies Software Development Engineer Interview Questions and Answers

Q1. What is the difference between java and python
Ans. 
Java is a statically typed, compiled language, while Python is dynamically typed and interpreted, offering different paradigms and use cases.
• Java is statically typed, meaning variable types are known at compile time, e.g., 'int num = 5;'.

• Python is dynamically typed, allowing variable types to be determined at runtime, e.g., 'num = 5'.

• Java requires explicit declaration of data types, while Python uses type inference.

• Jav...read more
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Q2. What is normalisation
Ans. 
Normalization is the process of organizing data in a database to reduce redundancy and improve data integrity.
• 1. Normalization involves dividing a database into tables and defining relationships between them.

• 2. It typically includes several normal forms (1NF, 2NF, 3NF, etc.) to achieve different levels of organization.

• 3. For example, in 1NF, each column must contain atomic values, and each record must be unique.

• 4. In 2...read more
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Machine learning advantages and disadvantage
hello world hello OWRLD2

Q1. What is u r name
Ans. 
My name is John Doe.
• Full name is John Doe

• Common first and last name combination

• No middle name provided
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Q2. What is salary expectation?
Ans. 
I am looking for a competitive salary based on my skills, experience, and the industry standard.
• Research the average salary for Associate Software Engineers in the industry

• Consider your level of experience and skills when determining your salary expectation

• Be prepared to negotiate based on the company's offer and benefits package
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Q1. 1. Difference between abstract class and interface. 2. Internal Working of HashMap 3. Difference Between ArrayList vs Linked List. 4. WAP to reverse a String 5. dependency Injections 6. IOC Container 7. S...read more
Ans. 
This interview question covers various topics including abstract class, interface, HashMap, ArrayList, Linked List, String reversal, dependency injection, IOC container, and singleton class.
• Abstract class is a class that cannot be instantiated and can have both abstract and non-abstract methods.

• Interface is a blueprint of a class that can only have abstract methods and cannot be instantiated.

• HashMap is a data structure...read more
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Q2. Difference Between controller and Rest Controller
Ans. 
Controller is a general term for handling requests, while Rest Controller is specifically for RESTful web services.
• Controller is responsible for handling incoming requests and returning responses.

• Rest Controller is a specialized type of controller that is used for building RESTful web services.

• Rest Controller uses HTTP methods like GET, POST, PUT, DELETE to perform CRUD operations on resources.

• Rest Controller returns d...read more
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Q3. What is Stream API in java 8
Ans. 
Stream API is a new feature in Java 8 that allows processing of collections in a functional way.
• Stream API provides a set of functional interfaces and methods to perform operations on collections.

• It supports parallel processing of collections, making it faster for large datasets.

• Examples of operations include filtering, mapping, sorting, and reducing.

• Stream API can be used with both primitive and object types.

• It promot...read more
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Q1. Mostly from the project that i have worked on.
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Q2. Optional Class in java
Ans. 
Optional class in Java is used to represent a value that may or may not be present.
• Optional class was introduced in Java 8.

• It is used to avoid null pointer exceptions.

• It can be used with streams to filter out null values.

• Example: Optional<String> name = Optional.ofNullable(null);

• Example: Optional<String> name = Optional.of("John");
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