JLL Software Engineer Interview Questions and Answers

2 coding question easy to medium level

It was easy based on topic andriod vs ios

Q1. Question on resume and project
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Basic JavaScript Interview

Q1. What is closure
Ans. 
Closure is a function that has access to its own scope, as well as the outer scope in which it was defined.
• Closure allows a function to access variables from its outer scope even after the outer function has finished executing.

• It is created whenever a function is defined within another function.

• Closure is commonly used in JavaScript for maintaining state in asynchronous operations.
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Q2. What are promise
Ans. 
Promises are objects representing the eventual completion or failure of an asynchronous operation.
• Promises are used to handle asynchronous operations in JavaScript.

• They can be in one of three states: pending, fulfilled, or rejected.

• Promises can be chained together using .then() method.

• They help avoid callback hell and make code more readable.

• Example: Fetching data from an API returns a promise that resolves with the da
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Q1. Introduce yourself
Ans. 
I am a software developer with 5 years of experience in Java and Python. I have a passion for problem-solving and creating innovative solutions.
• 5 years of experience in Java and Python

• Passionate about problem-solving

• Innovative solutions driven
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Q2. Were u see after 5 years
Ans. 
In 5 years, I see myself as a senior software developer leading a team and working on cutting-edge technologies.
• Leading a team of developers on innovative projects

• Working with cutting-edge technologies like AI and blockchain

• Continuing to learn and grow in my career

• Possibly pursuing further education or certifications

• Contributing to open source projects
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Data structure - rainwater trapping

Q1. OOPs concept, core java, sql
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Q2. Car parking lot problem - system design
Ans. 
Design a car parking lot system
• Determine the size and capacity of the parking lot

• Create a database to store information about available spots and occupied spots

• Develop a system to track the entry and exit of vehicles

• Implement a payment system for parking fees

• Incorporate security measures such as CCTV cameras and security personnel

• Provide a user-friendly interface for customers to locate available spots and make payment
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Q1. Rapid fire questions
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Q2. More java springboot
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Q1. About Binary search
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Q1. About project and ER diagram
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Q1. JavaScript question
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Q1. Coding questions
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Easy Lettcode questions multiple

Q1. Lld round with java
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