Most of the questions were based on core Java concepts i.e Inheritance, Abstraction, Encapsulation and Polymorphism. One or two questions were on DSA. Those questions were based on simple array manipulation and tree. In the question on tree, the interviewer added new points and I had to change the code according to that. But, all the interviewers were helpful. One or two questions were also on my projects.
Consisted 4 rounds 1st round on paper consisted mcqs and theory question and a coding question 2nd round 3 Sql queries 3 rd round face to face interview regarding concepts of java, oops 4 th round on Springboot task based and theoretical questioning of each command
Java Side: 1. Difference between RequestMapping and other Mappings? 2. Java 8 features 3. One small technical problem (String manipulation) 4. Qualifier annotation 5. Why notify, notifyAll, wait are outside functions in thread. etc React Side: 1. Lifecycle 2. Hooks 3. Keys 4. Mapping 5. Controlled and uncontrolled components etc The interview was like this. Only they are asking what's in the book.
Java-8 features & what all u have used? Dimond problem removal steps in java-8? Comparator and comparable Inversion of control in Spring Spring boot-> actuator What spring boot provide and why its getting much usage?
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