QualTech Technologies Software Developer Interview Questions and Answers

Q1. Array topics - 2 question from this topic
Add your answer
Q2. Linkedlist coding problem - 1 problem from this topic
Add your answer

Sql problem solving - 2 problem from this topic

Q1. Project discussion - projects you worked on
Ans. 
I have worked on various projects including a web application for a retail company and a mobile app for a fitness tracker.
• Developed a web application for a retail company to manage inventory and sales

• Created a mobile app for a fitness tracker to track workouts and progress

• Collaborated with team members to design and implement features

• Utilized technologies such as React, Node.js, and MongoDB
Answered by AI
Add your answer

Q1. What are the things that u do when your what app screen is blank
Ans. 
I would check for internet connection, restart the app, clear cache, and update the app.
• Check internet connection

• Restart the app

• Clear cache

• Update the app
Answered by AI
Add your answer
Q2. Simple python code
Add your answer

Q1. What is object oriented programming
Ans. 
Object oriented programming is a programming paradigm based on the concept of objects, which can contain data and code.
• Objects are instances of classes, which define the structure and behavior of the objects.

• Encapsulation, inheritance, and polymorphism are key principles of object oriented programming.

• Example: In a banking application, a 'Customer' class may have attributes like name and account balance, and methods li
Answered by AI
Add your answer
Q2. React vs angular
Ans. 
React is a lightweight library for building user interfaces, while Angular is a full-fledged framework for web development.
• React is more flexible and allows for easier integration with other libraries and frameworks.

• Angular provides more out-of-the-box features and a more opinionated structure.

• React uses a virtual DOM for better performance, while Angular uses two-way data binding for easier data manipulation.

• React is ...read more
Answered by AI
Add your answer

Java and Data Strcuture

Q1. Matrix to find the nearest word
Ans. 
Find the nearest word in a matrix of strings
• Create a matrix of strings

• Calculate the distance between the input word and each word in the matrix

• Return the word in the matrix with the smallest distance to the input word
Answered by AI
Add your answer
Q2. Finding smallest subset in string
Ans. 
Find the smallest subset of strings in an array
• Iterate through the array and compare the length of each string to find the smallest subset

• Use a variable to keep track of the smallest subset found so far

• Return the smallest subset at the end
Answered by AI
Add your answer

Q1. Implement an immutable class.
Ans. 
An immutable class is a class whose instances cannot be modified after creation.
• Use final keyword for class declaration to prevent inheritance

• Make all fields private and final to prevent modification

• Do not provide setter methods, only getter methods should be used
Answered by AI
Add your answer
Q2. Implement a springboot service that intercepts http requests.
Ans. 
Implement a Springboot service to intercept HTTP requests.
• Create a Springboot application with necessary dependencies.

• Implement a custom interceptor by extending HandlerInterceptorAdapter.

• Override preHandle and postHandle methods to intercept requests and responses.

• Register the interceptor in the WebMvcConfigurerAdapter configuration class.
Answered by AI
Add your answer

Q1. Basic oops, .net, c# coding, sql questions
Add your answer

Q1. More coding and details on project
Add your answer

Q1. More on projects and system design and troubleshooting approach
Add your answer

Q1. Salary discussion
Add your answer

Q1. More technical + managerial round even after HR round
Add your answer

About ai
today generation