Rooter Senior Software Engineer Interview Questions and Answers for Freshers

Aptitude questions were pretty easy like on speed etc

Coding questions were also easy like patterns code, reverse string just basics

Basic aptitude only think out of box

Q1. Static and final difference
Ans. 
Static variables belong to the class itself, while final variables cannot be changed after initialization.
• Static variables are shared among all instances of a class

• Final variables cannot be reassigned once initialized

• Static variables are initialized only once at the start of the program

• Final variables must be initialized when declared
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Q2. Patterns problem
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Q1. Tell me about your self?
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Q2. Checking english fluency
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10 reasoning questions and 3 coding questions

Q1. Wap for factorial with recurrsion
Ans. 
Factorial calculation using recursion in a programming language
• Define a function that takes an integer as input

• Base case: if input is 0, return 1

• Recursive case: return input multiplied by factorial of input-1

• Example: factorial(5) = 5 * factorial(4) = 5 * 4 * factorial(3) = ... = 5 * 4 * 3 * 2 * 1 = 120
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Q2. Opps and basic core Java questions
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Simple logic and maths based questions along with coding round

Q1. Questions on string literals
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Q2. Array vs arraylist
Ans. 
Arrays are fixed in size, while ArrayLists can dynamically resize. Arrays are faster for accessing elements, while ArrayLists offer more flexibility.
• Arrays have a fixed size, while ArrayLists can dynamically resize.

• Arrays are faster for accessing elements, while ArrayLists offer more flexibility in terms of adding, removing, and manipulating elements.

• Example: String[] namesArray = new String[5]; ArrayList<String>
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Q1. My strength and weaknesses
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Q2. Past work experiences if any
Ans. 
I have worked as a software developer for 3 years at XYZ company.
• Developed web applications using Java, Spring, and AngularJS

• Collaborated with team members to design and implement new features

• Participated in code reviews and testing processes

• Resolved technical issues and provided support to end users
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Basic coding test like palindrome, series,arrays

Q1. Logical questions,puzzle, behavioural round, introduction
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Prepare aptitude well as some questions are tricky which consume our time. There are 20 questions in total. And most of them are mathematical numeric problems.

This round is included in aptitude round in which you have to write down 3 coding problems which are easy one if you are moderate programmer

Q1. Java opps concepts, writing programs, logical reasoning questions, famous logical problems like water jug problem. Etc
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Q1. Your pros and cons, background information, etc
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Q1. In this round director asks for logical questions, it's a chill round but there are some brainstorming questions which checks you thinking capacity. I will not disclose the questions but hint is "Thinking...read more
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Easy applitude test simple question on arithmetic

Simple coding like Fibonacci

Systematic interview test

Q1. What is java and oops concepts
Ans. 
Java is a popular programming language used for developing various applications. OOPs concepts refer to Object-Oriented Programming principles.
• Java is a high-level, class-based, object-oriented programming language.

• OOPs concepts include Inheritance, Encapsulation, Polymorphism, and Abstraction.

• Inheritance allows a class to inherit properties and behavior from another class.

• Encapsulation refers to bundling data and meth...read more
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