spring ioc containers, dependency injection, spring mvc architecture, annotations, hibernate, jpa, spring security, database queries, deployment process, micro services, java concepts like streams, functional interface, collections, strings, java mail. Aws services like EC2, Ses. Docker deployments. Maven build system.
Value questions e.g. How do you handle stressful situations?
How to create rest api client and source. array array list linked list vector autoboxing unboxing hashmap hashtabl concurrent hashmap SQL queries and on joins
sql-> Sql engines, optimization techniques and some basic sql queries in 30 mins. Then 30 mins on DSA like 2 pointer approach questions, sliding window approach questions. Some Java, Spring Boot related questions. 2nd round-> About previous experience, DSA questions like sort an array in o(n) consisting of 0s and 1s. Writing some APIs, solid principles, java spirng boot related questions.
Write logger, that should send logs in multithreding environment, with sending in three different place sql/mongo/file
1. SQL and No-SQL differences. 2. Spring and SpringBoot framework 3. Microservices 4. Microservices architectural with a example. 5. Spring JPA 6. ORM/Hibernate 7. Coding on reverse string concept
Java, SQL, REST, API and Spring
how to find nth largest number in array
- string compression problem & two-sum to achieve a target in an array problem - Technical round covered collections, oops concepts, core Java, Spring Boot annotations, work experience, and MySQL queries.
1. L1 Interview: Basic questions on core java -Strings, Java 8 features, Collection hierarchy, Sql basic commands, comparable and comparator, REST VS SOAP, REST operations 2. L2 Interview: Program to print alternative words in string, JSON array examples, group by clause
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