NJ India Invest Java Developer Interview Questions and Answers for Freshers

• Q1. Tell me about yourself
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• Q2. What do you know about our company
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• Q1. In this they will give 45 mins to solve a problem
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Round duration - 90 minutes
Round difficulty - Medium

The round consisted of 3 coding Questions and 20 Technical MCQs.

• Q1. Connect Ropes Given a number of ropes say ‘N’ and an array of integers of size ‘N’ containing the length of ropes. Your task is to connect the ropes into one. T...read more
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• Q2. Idempotent Matrix Given a N * N matrix and the task is to check matrix is idempotent matrix or not. See the sample input. Idempotent matrix M follows the follow...read more
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• Q3. Sum Of LCM You are given an integer ‘N’ , calculate and print the sum of : LCM(1,N) + LCM(2,N) + .. + LCM(N,N) where LCM(i,n) denotes the Least Common Multiple ...read more
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Round duration - 120 minutes
Round difficulty - Medium

This round is a Long Coding Round. Every Candidate was assigned with a mentor who guides them, We were given a real-life scenario for which we have to construct a database with required tables. We should draw an ER Diagram to demonstrate the Database. After the Database Completion, We have to Start Coding the Application. The Design(like Placing the button or background colour) is not given much importance. They mainly test the practical knowledge of candidates in OOPS and expertise in a C, C++, Java, Android or any other language were OOPS Concepts can be applied.

• Q1. Technical Questions To Construct a House-Rental Application. There are two types of users. Owner and Buyer. The owner can list his/her house for selling or rent...read more
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Round duration - 180 Minutes
Round difficulty - Medium

This Round is a technical Interview. I was asked Questions to test my Technical Knowledge.

• Q1. DBMS Questions

  Questions on all basic commands in SQL.
  Questions on PL SQL Queries too.
  Questions on Normalization.

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• Q2. OOPS Questions Explain Inheritance and Polymorphism? Is Multi-Level Inheritance Possible in Java? Explain Packages and Interfaces? Explain classes and Objects? ...read more
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• Q3. DS Questions Difference between Greedy and DP Explain a DP problem. Why all problems cant be solved with Greedy Approach? Questions on Time Complexity. Explain ...read more
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• Q4. Sort 0 1 2 You have been given an integer array/list(ARR) of size 'N'. It only contains 0s, 1s and 2s. Write a solution to sort this array/list. Note : ...read more
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Round duration - 20 Minutes
Round difficulty - Easy

• Q1. Basic HR Questions

  Are you a team player?

  What is your biggest failure?

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