Amazon Software Engineer2 Interview Questions and Answers

Q1. Java questions and spring boot and data bse
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Difficulty level was medium to hard

Difficulty level was medium to hard

Q1. Difficulty level was medium
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Q1. Difficulty level was hard
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Q1. Project grillings and difficulty level was medium to hard
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Java coding questions

Q1. Explain Java oops concepts?
Ans. 
Java oops concepts include inheritance, encapsulation, polymorphism, and abstraction.
• Inheritance allows a class to inherit properties and behavior from another class.

• Encapsulation hides the internal state of an object and restricts access to it.

• Polymorphism allows objects to be treated as instances of their parent class.

• Abstraction hides the implementation details and only shows the necessary features.
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Q2. What is collections?
Ans. 
Collections in programming refer to data structures that allow you to store and manipulate groups of objects.
• Collections provide a way to organize and manage data efficiently

• Examples include lists, sets, maps, queues, and stacks

• Collections can be used to perform operations like adding, removing, and searching for elements
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Q3. Write a code to reverse number?
Ans. 
Code to reverse a number in JavaScript
• Convert the number to a string to easily manipulate each digit

• Use array methods like split, reverse, and join to reverse the number

• Convert the reversed string back to a number before returning
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Q1. Introduction about yourself?
Ans. 
I am a recent graduate with a degree in Computer Science and a passion for coding and problem-solving.
• Graduated with a degree in Computer Science

• Proficient in programming languages like Java, Python, and C++

• Completed internships at tech companies like Google and Microsoft

• Enthusiastic about learning new technologies and working in a team environment
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Q2. Do you know about the company?
Ans. 
The company is a leading software development firm specializing in creating innovative solutions for various industries.
• Company focuses on creating innovative software solutions

• Has a strong presence in various industries

• Known for their expertise in software development
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Hackerrank Coding Test, Leetcode medium questions

HLD test, was asked to design an online coding platform like leetcode

Q1. Most interesting project you have worked on
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Q2. How do you handle conflict at workplace
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It was a medium-level DSA round

This was also a DSA round

This again a DSA round

Q1. Can't disclose the question because of NDA signed but it was a design round
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Q1. This was a project discussion round
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Medium questions dp array graph recurrin

Q1. Leetcod easy question
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Aptitude Test + some JAVA + SQL Questions

DSA+SPRING+SQL+JAVA
IN THIS ROUND INTERVIEWER ASKED ME 1DSA QUESTION WHICH IS BASED ON DEQUE SOME SQL QUERIES WHICH IS ON JOINS AND BASIC SPRING QUESTIONS

SAME AS THE 2ND ROUND BUT THE LEVEL INCREASED AS COMPARISON TO ROUND-2

Q1. IN THIS ROUND MANAGER ASKED ME SOME QUESTIONS ABOUT MY BACKGROUND AND COLLEGE PROJECT AND ASKED ABOUT MY PREVIOUS EXP
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Some database questions,some java questions .

Q1. What is the difference between javascript and jQuery.
Ans. 
JavaScript is a programming language used for web development, while jQuery is a library built with JavaScript to simplify HTML document traversal and manipulation.
• JavaScript is a programming language, while jQuery is a library written in JavaScript.

• JavaScript can be used for a wide range of tasks, while jQuery is mainly used for DOM manipulation and event handling.

• JavaScript is a core technology for web development, w...read more
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Q2. Define different types of join
Ans. 
Different types of joins are used in SQL to combine rows from two or more tables based on a related column between them.
• Inner Join: Returns rows when there is at least one match in both tables.

• Left Join (or Left Outer Join): Returns all rows from the left table and the matched rows from the right table.

• Right Join (or Right Outer Join): Returns all rows from the right table and the matched rows from the left table.

• Full ...read more
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Q3. Define multithreading concept and exception handling.
Ans. 
Multithreading allows multiple threads to run concurrently, while exception handling deals with errors in a program.
• Multithreading involves running multiple threads simultaneously to improve performance and responsiveness.

• Threads share the same memory space but have their own program counter and registers.

• Exception handling is a mechanism to handle errors or exceptional situations in a program.

• It helps prevent the prog...read more
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