Rest, Spring Boot, Microservices, Docker
Sr Java Developer Interview Questions
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java opp micro services sql vs no sql ci/cd tools
Core Java Threading Exception handling
Business requirements: - Keep it very simple and meet today's demands only. - You don't need to implement any authentication. - We need two main features, which should be implemented by REST endpoints. The application should be able to; 1- Put some money from the customer's Takeaway Pay allowance in the restaurant's account. We don't need extra details like the customer's name, or the restaurant's address. 1.1- The application should validate that the customer has enough funds in their Takeaway Pay allowance for completing the transaction and that the transfer amount does not exceed their daily limit of 10 Euros. You can assume the limit gets topped up by an external source every day, or you can always be creative and implement your own solution. 2- Display the amount in customer and restaurant accounts
When would you usue ArrayList vs LinkedList
normal java interview questions and springboot framework
java 8 lemda function implementation to compare and sort array
Merge two sorted array upto a given number of elements for both the array
R1: - 2 medium level leetcode problems (30 mins and 45 mins) R2: - Questions about experience, whats and whys - Given a function sendMessage(sender, message), how to implement scheduled message functionality R3: - How does concurrent hashmap work? - What is https and explain its working and benefit - What is jwt auth? What is oAuth? - What are spring interceptors and filters and what's the difference. R4: Given a system, say twitter, how to create a blacklist checking mechanism. For each country, see whether govt has blacklisted the IP using a govt provided API that returns yes/no when IP is provided. If an IP is blacklisted, don't allow access to the system. Blacklist updates every 24 hours. What's the best implementation for scale?
Creating a custom implementation of HashSet
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