They designed a problem that was related to a database query to show a report to the user.
Senior Java Engineer Interview Questions
5,776 senior java engineer interview questions shared by candidates
It was medium with questions based on java 8, springboot, microservices, rest api and mysql Features of java 8 and asked to solve some coding ques using streams Questions on core java, multiple threading, collections
Basic Java questions core Java, spring boot, microservices
See the lengthy description above.
Explain how to configure different DB in Spring boot .
Why would you like to work at Picnic?
what would you bring to picnic?
Spring Boot, Spring Cloud, Kafka, Design Pattern, 2 DSA question easy one.
Ways of creating thread. When to use runnable and when to use Thread. Abstract Class Instantiation of Abstract class Singleton classes Where singleton design can break? Custom class object as key in hashmap Identity hashmaps---equality is done using reference (==) Concurrent hashmaps--contains segments--1Sements = 1 Hasmap(Conceptually) Final class
Live coding + some questions about complexity of the solution. Load balancer. Some extra requirements once you implement the previous ones. Money transfer service, then SQL query of money transfer, then theory about DB mostly (ACID, isolation levels).
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