TO THE NEW Software Engineer Interview Questions, Process, and Tips

1-HR round, basic Aptitude questions

Q1. Interviewer was good, Tough basic java questions were asked, Problem : Count the frequency of Char in given string.
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Q2. Inheritance in java
Ans. 
Inheritance in Java allows a class to inherit properties and behaviors from another class.
• Inheritance is achieved using the 'extends' keyword in Java.

• Subclasses can access the methods and fields of the superclass.

• Java does not support multiple inheritance, but a class can implement multiple interfaces.
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Q3. What is java platform independent
Ans. 
Java platform independence refers to the ability of Java code to run on any device or operating system without modification.
• Java code is compiled into bytecode, which can be executed on any device with a Java Virtual Machine (JVM)

• JVM acts as an abstraction layer between the Java code and the underlying hardware and operating system

• This allows Java programs to be written once and run anywhere, making them platform indep
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Q4. SQL query for second max salary
Ans. 
Use SQL query with subquery to find second highest salary
• Use subquery to find the max salary first

• Then use another subquery to find the max salary excluding the previously found max salary
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Q5. Access modifiers in depth
Ans. 
Access modifiers control the visibility and accessibility of classes, methods, and variables in object-oriented programming.
• Access modifiers include public, private, protected, and default (package-private)

• Public: accessible from any other class

• Private: only accessible within the same class

• Protected: accessible within the same package and subclasses

• Default: accessible within the same package
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Hacker Earth Challenge to test problem solving

Q1. Basics of Java and its uses
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Q2. Project Experience and learnings
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Q3. Challenges faced till date and how I overcome them
Ans. 
Overcoming challenges faced as a software engineer
• Managing tight deadlines by prioritizing tasks and effectively managing time

• Resolving complex technical issues by conducting thorough research and collaborating with team members

• Adapting to new technologies and frameworks by continuously learning and upskilling

• Working with cross-functional teams and effectively communicating to ensure smooth project execution

• Handling mu...read more
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Very easy objective question and 2 coding question

Q1. Basic question from resume listed skill and project
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Q2. Some basic java questions
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Q1. Design LRU Cache
Ans. 
LRU Cache is a data structure that stores the most recently used items, discarding the least recently used items when full.
• Use a combination of a doubly linked list and a hashmap to efficiently implement LRU Cache.

• When an item is accessed, move it to the front of the linked list to mark it as the most recently used.

• When the cache is full, remove the least recently used item from the end of the linked list and the hashm
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Q2. Java Basics questions on collections and oops
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Q1. Dsa question on minimum no of coins for a given amount when coins of denomination 1,2,5,10 available.
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Q1. Design database schema for food delivery app
Ans. 
Design a database schema for a food delivery app
• Create tables for users, restaurants, orders, and menu items

• Use foreign keys to establish relationships between tables

• Include columns for user details, restaurant details, order details, and menu item details

• Consider adding tables for reviews, ratings, and payment information
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It consists of three basic questions related to string and array.

Q1. This is the technical round 1. This went for arround 45 minutes. Interviewer asked about myself. Then he gave me a problem(Finding Second Largest) Then he took a look at my resume, my primary language was ...read more
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Q1. This was technical round 2.It goes on for arround 1 hours. Interviewer asked about the project i worked on . Then interviewer gave me two problem 1. Flattening nested list 2. Second maximum Then two sql q...read more
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Q1. Tell me about yourself.
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Q2. What is your family background?
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Q1. Basic JS - var, let, const, arrow functions, equality operators, truthy falsy values, Logical Operators, React hooks, lifecycle methods, Redux flow, one DSA question
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Q1. React Native Bridging Concept
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Q1. Regular discussion on why you want to join the company, long terms goals.
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