London Stock Exchange Group Senior Developer Interview Questions and Answers

Q1. Difference between Java version
Ans. 
Java versions differ in features, performance, and compatibility with libraries and frameworks.
• Major differences between Java versions include new features, performance improvements, and compatibility with libraries and frameworks.

• For example, Java 8 introduced lambda expressions and the Stream API, while Java 11 added local-variable syntax for lambda parameters.

• It is important to consider the specific requirements of ...read more
Answered by AI
Add your answer
Q2. Difference between MVC and MVVM
Ans. 
MVC separates application into Model, View, Controller. MVVM adds ViewModel to separate UI logic from business logic.
• MVC stands for Model-View-Controller, where Model represents data, View represents UI, and Controller handles user input.

• MVVM stands for Model-View-ViewModel, where ViewModel acts as a mediator between Model and View, separating UI logic from business logic.

• In MVC, the View directly interacts with the Mo...read more
Answered by AI
Add your answer

Q1. Process of new New Application
Ans. 
The process of developing a new application involves planning, designing, coding, testing, and deploying.
• Gather requirements from stakeholders

• Create wireframes and mockups

• Develop code using appropriate technologies

• Test application for bugs and performance issues

• Deploy application to production environment
Answered by AI
Add your answer
Q2. Firebase FCM setup
Add your answer

Q1. OOP basic about the concept
Add your answer
Q2. Ms Sql based sql queries
Add your answer

Q1. How exception handing in api
Ans. 
Exception handling in API involves catching and handling errors that occur during API execution.
• Use try-catch blocks to catch exceptions and handle them appropriately

• Throw custom exceptions to provide meaningful error messages to API consumers

• Use status codes to indicate the outcome of API requests (e.g. 200 for success, 400 for client errors, 500 for server errors)

• Log exceptions to track errors and troubleshoot issues

• ...read more
Answered by AI
Add your answer
Q2. Code for multiplication table
Ans. 
Code to generate a multiplication table in a programming language
• Use nested loops to iterate through rows and columns

• Print the product of row and column for each cell

• Consider formatting the output for better readability
Answered by AI
Add your answer

Q1. Dependency injection
Add your answer
Q2. What are oops concepts
Ans. 
Object-oriented programming concepts that focus on data encapsulation, inheritance, polymorphism, and abstraction.
• Encapsulation: bundling data and methods that operate on the data into a single unit (class)

• Inheritance: ability of a class to inherit properties and behavior from another class

• Polymorphism: ability to present the same interface for different data types

• Abstraction: hiding the complex implementation details
Answered by AI
Add your answer

Q1. Why do you want to switch
Ans. 
I want to switch to explore new technologies and challenges in a different industry.
• Interested in learning new skills and technologies

• Seeking new challenges and opportunities for growth

• Want to explore different industry perspectives
Answered by AI
Add your answer
Q2. Salry expectations
Add your answer

Q1. Question on oop concepts
Add your answer
Q2. Coding questions
Add your answer

Asked about data structures

Asked about java programmes

Q1. Tell me about your self
Ans. 
I am a passionate software developer with 5 years of experience in developing web applications using Java, Spring, and Angular.
• 5 years of experience in software development

• Proficient in Java, Spring, and Angular

• Passionate about coding and problem-solving
Answered by AI
Add your answer
Q2. Are you ready to relocate
Ans. 
Yes, I am open to relocating for the right opportunity.
• I am willing to relocate for the right job opportunity that aligns with my career goals.

• I have experience moving for previous jobs and am comfortable with the process.

• I am excited about the possibility of exploring a new city or country and experiencing a different culture.
Answered by AI
Add your answer

Q1. It was a good technical mostly on the JAVA side.
Add your answer

Q1. Dotnet , MVC , SQL
Add your answer

Q1. CTC and other discussion
Add your answer

Q1. Given problem and asked me to solve
Add your answer
Q2. Sum of array of elements without using any llop
Ans. 
Use reduce method to calculate sum of array elements without loop
• Use Array.reduce() method to sum up the array elements

• Convert array elements to numbers before summing them up

• Example: const arr = ['1', '2', '3']; const sum = arr.reduce((acc, curr) => acc + Number(curr), 0);
Answered by AI
Add your answer