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Java Senior Interview Questions
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1. Validate a string containing [], {}, () 2. A SQL query about sales neede having clause and group by 3. Overview of an HTTP request and response
How to find if two strings are Anagrams without using any collection and inbuilt string function
How to read a big text file of 1 tb of size and check for particular keywords and write in another file without causing memory and performance issues
What is dependency injection?
Task was about e-wallet application (was old task 15 November 2019) Requirements The task consists of a wallet server and a wallet client. The wallet server will keep track of a users monetary balance in the system. There should be separate balance for different currencies. The client will emulate users depositing and withdrawing funds. Database Must include the database schema that is needed for the server application. The following technologies must be used • Java 8+ • Spring 5.x • gRPC • MySQL 5.x • Gradle • JUnit Extra points for using these technologies: • Docker • Hibernate • Spring Boot 2.x
Some deep level ques from core java, and. Some basics ques from jsp, servlet, spring and Oracle.
Given B-Tree. You need to write a function that takes level as a parameter and returns the sum of elements from that level.
sorting array element without predefined util method
What is Etag in HTTP?
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