INDIUM Associate Software Engineer Interview Questions and Answers for Freshers

Q1. Bubble sort code
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Q2. 2nd max salary sql query
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Q3. Linked list implementation
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Linked list is a data structure where each element points to the next element in the sequence.
• Nodes contain data and a reference to the next node

• Operations include insertion, deletion, and traversal

• Example: Singly linked list: 1 -> 2 -> 3 -> null
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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
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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
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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
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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
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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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Java Coding round and Sql queries

Q1. Explain in detail about Oops Concept
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OOPs (Object-Oriented Programming) is a programming paradigm based on the concept of objects, which can contain data and code.
• OOPs focuses on creating objects that interact with each other to solve a problem

• Key principles include Inheritance, Encapsulation, Polymorphism, and Abstraction

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

• Encapsulation restricts access to certain components wi...read more
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Q2. Explain in detail on Collection
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Collections in programming refer to data structures that allow you to store and manipulate multiple elements.
• Collections can be used to store groups of related data, such as lists, sets, maps, or queues.

• They provide methods for adding, removing, and accessing elements within the collection.

• Examples of collections in Java include ArrayList, HashSet, HashMap, and LinkedList.
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Q1. Tell me about your self
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Q2. Tell me about your Hobbies
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The basics questions are there regarding basic concepts of computer engineering

Q1. What is the sdlc ?
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SDLC stands for Software Development Life Cycle, a process used by software development teams to design, develop, and test high-quality software.
• SDLC is a structured process that consists of several phases such as planning, analysis, design, implementation, testing, and maintenance.

• Each phase has its own set of activities and deliverables to ensure the successful completion of the software project.

• Examples of SDLC mode...read more
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Q1. Data regarding questions
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Q1. Tell me about your project
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Assessment testing the knowledge in all the subjects of CSE

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