JPMorgan Chase & Co. SDE-2 Interview Questions, Process, and Tips

Round duration - 60 minutes
Round difficulty - Medium

Round started with an intro about the project. In my project i have mentioned that i had use Cassandra. The interviewer asked why use Cassandra , why not other No Sql database.
After that the interviewer started asking about the java concepts. How exception propagate takes in case of polymorphism.
There a question about multilevel inheritance. There were three classes parent, child , grandchild in a multlevel inheritance.
All three classes have a function with same name.
Question was about if we call a method something like this 
Parent p = new Grandchild();
p.method1();
which class method would be called

Q1. 
First Missing Positive Problem Statement
You are provided with an integer array ARR of length 'N'. Your objective is to determine the first missing positive integer using linear time and constant space. T...read more
Ans. Searching
1. Since we are given an integer ‘N’, there could be a maximum of ‘N’ positive integers in the array.
2. The minimum positive number is 1, hence we can search from 1 to N in the array.
3. Run a loop from 1 to N, and search for each element in the array.
4. If the element is present in the array then search for the next element.
5. If it is not present then, the element is the answer.
6. Otherwise, if all the elements between 1 to N ...read more
Answered Anonymously
Add your answer

Round duration - 60 minutes
Round difficulty - Medium

Interviewer started with some questions about Database locks .
I had to prepare a low level design of the library management system.
Then there were follow up questions regarding how many database table you will use, normalizing those databse table, writing the service logic for one of the functionality

Q1. Design a Library Management System.
Add your answer

Round duration - 30 Minutes
Round difficulty - Easy

It was managerial round. They asked few questions about the project and why you use this particular technology.

Q1. Can you explain your project and the reasons for using this particular technology?
Ans. 
Tip 1 : Make sure to study why you have use this particular tech
 
Answered Anonymously
Add your answer

2 coding question, 1 section of business aptitude and 1 section english.

Q1. Design a chess game.
Ans. 
A classic chess game with standard rules and pieces.
• Create a board with 8x8 squares

• Place 16 pieces on each side: 1 king, 1 queen, 2 rooks, 2 knights, 2 bishops, and 8 pawns

• Define the movement rules for each piece

• Implement special moves like castling and en passant

• Check for checkmate and stalemate conditions

• Allow for player vs player or player vs computer gameplay
Answered by AI
Add your answer
Q2. N queens problem. Minimum steps by knight.
Ans. 
The N Queens problem is to place N chess queens on an NxN board so that no two queens threaten each other. Minimum steps by knight is a variation of this problem.
• The N Queens problem is a classic problem in computer science and can be solved using backtracking.

• The minimum steps by knight variation involves placing N knights on an NxN board so that no two knights threaten each other.

• This problem can also be solved using...read more
Answered by AI
Add your answer

Q1. Hr questions were asked. And location preference.
Add your answer