Subex Senior Software Engineer Interview Questions and Answers for Freshers

Q1. Implement Linked list
Ans. 
Linked list is a data structure where each node points to the next node.
• Create a Node class with data and next pointer

• Create a LinkedList class with head pointer

• Implement methods to add, remove, search, and traverse the list
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Q2. Implement Hash Map with array and linked list.
Ans. 
Implement Hash Map with array and linked list.
• Create an array of linked lists

• Hash function maps keys to array indices

• Insert key-value pairs into linked lists

• Handle collisions by chaining

• Search for a key by hashing and traversing linked list
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Q3. How to create a immutable class in java
Ans. 
To create an immutable class in Java, follow these steps:
• Make the class final

• Make all fields private and final

• Do not provide any setter methods

• Initialize all fields via constructor

• If any field is mutable, return a clone of it instead of the original object
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It has aptitude and coding based questions.For coding you can choose any coding language

There will be a GD for 7-10 people on random topic

Q1. 1st TR,ask to write a code of your preference.Linux commands,SQL
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Q1. 2nd TR ,ask about the projects you have done
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Q1. Basic HR round,where they will discuss about the company , job role etc
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