KGISL Android Developer Interview Questions and Answers

Round duration - 45 minutes
Round difficulty - Medium

I was asked 2 coding questions, questions from my projects and questions related to different java concepts. One question from cloud computing was also asked.

Q1. 
Maximum Subarray Sum Problem Statement
Given an array arr of length N consisting of integers, find the sum of the subarray (including empty subarray) with the maximum sum among all subarrays.
Explanation...read more
Ans. 
Find the sum of the subarray with the maximum sum among all subarrays in a given array.
• Iterate through the array and keep track of the current sum and maximum sum seen so far.

• If the current sum becomes negative, reset it to 0 as it won't contribute to the maximum sum.

• Return the maximum sum as the result.

• Example: For input arr = [-2, 1, -3, 4, -1], the maximum subarray sum is 4.
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Q2. 
Add Two Numbers as Linked Lists
You are given two singly linked lists, where each list represents a positive number without any leading zeros.
Your task is to add these two numbers and return the sum as ...read more
Ans. 
Add two numbers represented as linked lists and return the sum as a linked list.
• Traverse both linked lists simultaneously while keeping track of carry

• Create a new linked list to store the sum

• Handle cases where one list is longer than the other

• Consider edge cases like carry at the end of addition
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Round duration - 15 minutes
Round difficulty - Easy

It was a normal discussion about the role, the job expectations and about the company culture.

Q1. Puzzle on tic tac toe
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It was a screening round where questions where from java springboot and micro services

Q1. What are the java 8 features
Ans. 
Java 8 introduced several new features including lambda expressions, streams, functional interfaces, and more.
• Lambda expressions allow you to write code in a more concise and readable way.

• Streams provide a new way to work with collections in a functional style.

• Functional interfaces enable the use of lambda expressions.

• Default methods allow interfaces to have method implementations.

• Method references provide a way to ref...read more
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Q2. Why do we need to overide equals and hashcode
Ans. 
To ensure correct behavior when using objects in collections like HashMap or HashSet.
• Ensures that two objects that are equal have the same hash code.

• Prevents duplicate objects in collections like HashSet.

• Allows for correct retrieval of objects from collections like HashMap.
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Q1. It was a managerial round so had questions related to it
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Q1. Salary negotiations where done on this round
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Online one and half hours

Q1. Basic java sql python
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Q1. Introduction,family background,why you want to join our company.
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Q1. Explain chexkout flow in sfcc
Ans. 
Checkout flow in Salesforce Commerce Cloud (SFCC) involves steps like cart review, shipping address selection, payment method selection, order summary review, and order confirmation.
• Cart review: Customer reviews items in their cart before proceeding to checkout.

• Shipping address selection: Customer enters or selects a shipping address for delivery.

• Payment method selection: Customer chooses a payment method for the order...read more
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Q2. Explain web services
Ans. 
Web services are software systems designed to allow communication between different devices over the internet.
• Web services use standard protocols like HTTP to enable communication

• They can be used to exchange data between different applications or systems

• Examples include RESTful APIs, SOAP, and XML-RPC
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Q3. Explain job framework
Ans. 
Job framework refers to the structure and guidelines that define roles, responsibilities, and processes within a job or organization.
• Job framework outlines the specific duties and expectations for a particular job position.

• It helps employees understand their roles and responsibilities within the organization.

• Frameworks can include job descriptions, performance metrics, and career development paths.

• Example: A software d...read more
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Q4. Diff btw content asset and slot
Ans. 
Content asset is the actual content being displayed, while a slot is the space where the content asset is placed.
• Content asset is the actual content being displayed on a webpage or application.

• Slot is the space or location on a webpage or application where the content asset is placed.

• Content asset can be text, images, videos, etc.

• Slot can be a banner ad space, a section on a webpage, etc.
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Q5. 3rd part payment integration
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