Nextgen eSolutions Software Engineer Interview Questions and Answers

It consists of basic aptitude questions and some coding output questions followed by basic SQL questions. Overall the difficulty level was medium.

Q1. They asked me to write code for 4 problems. All questions consists array medium level and then there are difficult SQL questions to solve. Unfortunately I couldn't passed this round. But it was a great lea...read more
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It has general aptitude questions with moderate difficulty

It was mixed coding plus SQL question after the exam I had explain my solution.

First there will be a topic given to you to write an article of length 300-400 words in 15 mins. This article writing is to check your knowledge of English language.
Then there is a 45 mins round test in which 40 questions will be asked.
20 Technical and 20 Programming.
The programming questions will be from C++, and you are required to choose the correct output of the given C++ program.
The technical aptitude questions were medium to hard.

Q1. It's a 1:30 hr round. In this part, there will be 4 coding questions from arrays topic which you can solve with any programming language you know. Along with this, you will have 2 questions from SQL and e...read more
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There was total of 40 questions
First 20: Aptitude based topics like time and work, profit and loss, speed and distance
Second 20: Programming MCQs based on C, C++ and python. Task is to guess the correct output and errors.

There were 4 coding questions based on array, 2 SQL queries and one article.
Coding questions were easy for batch 2 but difficult for batch 1. Star patterns are present in batch 1.
SQL queries were easy.
One article (200-300)words. Topics was Google maps.

Q1. Founder came and asked approach I used to solve coding questions in round 2. He then check the output for each question. Then he checked the SQL queries I have written, in which I had write two wrong queri...read more
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Q2. He asked me about different approaches to solve a problem
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Q3. He asked about the project I had done on Java Full stack.
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Write a code for HTML DOM

Q1. What is polymorphism
Ans. 
Polymorphism is the ability of a function or method to behave differently based on the object it is acting upon.
• Polymorphism allows objects of different classes to be treated as objects of a common superclass.

• It enables a single interface to be used for different data types or classes.

• Examples include method overloading and method overriding in object-oriented programming.
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Q2. Find missing number from nth number array.
Ans. 
Find missing number from nth number array.
• Iterate through the array and calculate the sum of all numbers

• Calculate the sum of numbers from 1 to n using the formula n*(n+1)/2

• Subtract the sum of array from the sum of numbers from 1 to n to find the missing number
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Q3. Explain inheritance and it types
Ans. 
Inheritance is a concept in object-oriented programming where a class inherits properties and behaviors from another class.
• Inheritance allows a class to reuse code from another class.

• Types of inheritance include single inheritance, where a class inherits from only one parent class, and multiple inheritance, where a class inherits from multiple parent classes.

• Example: Class B inherits from Class A, so Class B can access
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Q4. Find 2nd max elements from aaray
Ans. 
Find 2nd max element from array of strings
• Sort the array in descending order

• Skip the first element (max element)

• Return the second element
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