Hughes Systique Corporation Principle Engineer Interview Questions and Answers

Ios round
questions asked involved questions from storages used in iOS
app life cycle
multiple app login with same creds autocomplete feature

Basic problem solving round
2 medium
1 b/w medium and hard
question were asked :
tree BFS and Stair question
dynamic programming

Q1. Design app like whatsapp.
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Q1. Basic firment round with director.
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DSA, factorial based question and stack based question

Q1. What is an operator in programming?
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Q2. What is an array?
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Ask to remove duplicates in array

Q1. Life cycle hooks
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Q2. How angular works
Ans. 
Angular is a front-end web framework that allows developers to build dynamic web applications.
• Angular uses TypeScript for building applications.

• It follows the MVC (Model-View-Controller) architecture.

• Angular provides features like data binding, dependency injection, and routing.

• Components are the building blocks of Angular applications.

• Angular CLI (Command Line Interface) is used for creating and managing Angular proje
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Q3. Routing guard and loading
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Q1. Full day exam on saturday
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Q2. Coding related, dsa, aptitude etc
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Based on concepts and past experience

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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