Does an index on columns A, B, C on a SQL table help with the performance of a query with a where clause only on column A? what about a where clause only on column B?
Desenvolvedor Senior Interview Questions
8,025 desenvolvedor senior interview questions shared by candidates
Telephonic: - Hashmap internal - Oops concept - Linklist loop detection - Code of string manipulation - threading
1) "Why our company?" 2) "Why our company?"
Google "picnic test task github" to see the technical home assignment.
Q: Name your greatest strengths and weaknesses. Q: What was your favourite book to read as a kid?
- Implement a library that has Money Class as a utility with all the details (on white paper) - What if it's a service? How would you scale it? eventual consistency? - How can you write a Singleton class? - What is the size of Double in Java?
Some question about string manipulation that is to remove pairs of duplicate characters and return the resulting string
arr = [c,c,b,d,d,a,a,c,b,b,b,c,d,a] Given an array of characters, find the min length sub array within this array which has all the unique elements present in the array. unique = [c,b,d,a] worst = [c,a,a,a,a,d,d,d,b] //in this case the complete array becomes the min lenght sub array.. Write a function which accepts the char array and prints i,j of the sub array
Explaing spring annotations like @Configuation,@Value
Previous experience and some technical questions based on Oops with C++
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