core java
Technical Lead Senior Java Software Engineer Interview Questions
6,678 technical lead senior java software engineer interview questions shared by candidates
Overall exp., technologies worked upon, versions, duration Hashcode vs equals, contract b/w both by java Save employee object in hashmap when hashcode returns 1 and equals always “true” , and make e1,e2,e3 as key or employee.id as key, size of hashmap will be? Method overriding Class lock, method lock Can we take lock on object of class when class level lock is already acquired Executer apis in java How to restrict add method on list Diff scopes in spring Are controllers threadsafe How to make the same threadsafe Runnable vs callable Aggregation and composition Hibernate caching Session vs session factory Comparable vs comparator
Java Serialization, Memory management in JVM, Spring boot and microservices. Java 8 programming.
Core Java basic questions, why spring boot, how does spring MVC handle multiple requests
1. This Round is like screening ,basic questions and very high level picture of the some scenarios like how can you get millions of records from DB,designpatterns what ever you have worked on ,spring ioc etc.. 2.Round too is average not too much technical but questions need a decent solution how a websrivce changes can be updated to the clients ?,wht is exception higherrarchy,pagination concept etc..
OAuth Authorization and Authentication management Session Management Spring vs Springboot Spring security JPA
1) Write a program to find all files with same name on file system and their path 2) SQL employee department kind of query 3) When will you use hibernate , iBatis and toplink ? 4) SSL 5) Producer is producing @ 10 TPS , there is queue and consumer can consume only @ 5TPS then what would you do without adding an infrastructure. Then changed the question the at peak time its 10TPS and then 1 TPS whatwould be approach.
For the HR phase, regular questions about the career past and motivations.
Tell me about yourself? Previous experience? Project related questions?
How do you fetch full name using hibernate when there is column first name and last name without using query
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