TO THE NEW Software Engineer Interview Questions and Answers

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
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Q4. SQL query for second 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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Maximum sum of sub array

Q1. Why you wanna join TTN
Ans. 
I am passionate about TTN's innovative projects and collaborative work environment.
• Exciting projects at TTN attract me

• I value collaborative work environment

• I am impressed by TTN's reputation in the industry
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Q2. Your strength and weakness
Ans. 
Strength: Problem-solving skills, Weakness: Overthinking
• Strength: I have strong problem-solving skills which allow me to efficiently analyze and solve complex issues.

• Weakness: Sometimes I tend to overthink situations, which can lead to indecision or unnecessary stress.

• Strength: I am able to think creatively and come up with innovative solutions to challenges.

• Weakness: I can be overly critical of my own work, which may ...read more
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Q1. Design LRU Cache
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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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First round was coding test which was neither too difficult nor a piece of cake. There were three questions to do Java. One of them was to separate words in a given string which was a sentence.

Q1. Easy question: Write a program to separate odd and even numbers from an array.
Ans. 
Program to separate odd and even numbers from an array.
• Loop through array and check if each number is odd or even

• Create two separate arrays for odd and even numbers

• Return both arrays
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Q1. What is your family background?
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Q2. What are your strengths and weaknesses?
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Q3. Tell me about yourself.
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Q4. Tell me about your project
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