Nihilent Interview Questions and Answers

Question 1

Asked in

Q1. String Palindrome

Given a string, determine if it is a palindrome, considering only alphanumeric characters.

Palindrome

A palindrome is a word, number, phrase, or other sequences of characters which read the sam...read more

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Question 2

Asked in

Full Stack Developer Interview

Q2. Count characters

Write a program to count and print the total number of characters (lowercase english alphabets only), digits (0 to 9) and white spaces (single space, tab i.e. '\t' and newline i.e. '\n') entered...read more

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Question 3

Asked in

Full Stack Developer Interview

Q3. Middle Of Linked List

Given the head node of the singly linked list, return a pointer pointing to the middle of the linked list.

If there are an odd number of elements, return the middle element if there are eve...read more

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Question 4

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Full Stack Developer Interview

Q4. Sort Array Of Strings

You are given an array of strings 'ARRSTR[]' of size 'N' and a character 'C'. Your task is to sort the 'ARRSTR[]' according to the new alphabetical order that starts with the given characte...read more

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Question 5

Asked in

Full Stack Developer Interview

Q5. Technical Question

What is the difference between string pool and string.

What is exception handling

How hashmap works.

What is multithreading.

Discuss the advantages and disadvantages of using Angular?

OOPS concepts...read more

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Question 6

Asked in

Associate Consultant Interview

Q6. Program read data for m excel

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Answer

To read data for m excel, a program can use libraries like pandas or openpyxl.

Use pandas library to read data from multiple excel files
Use openpyxl library to read data from a specific excel file
Specify the file path and sheet name to read data
Use loops to read data from multiple sheets or files
Handle errors and exceptions while reading data

Question 7

Asked in

Associate Consultant Interview

Q7. Oops concepts of java

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Answer

Oops concepts are the fundamental concepts of Java programming language.

Encapsulation - wrapping up of data and methods into a single unit
Inheritance - acquiring properties of parent class by child class
Polymorphism - ability of an object to take many forms
Abstraction - hiding implementation details and showing only necessary information

Question 8

Asked in

Full Stack Developer Interview

Q8. SQL Questions

Get the second highest salary from employee table.
Print all the employees having same salaries.

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Nihilent Interview Questions and Answers

Given a string, determine if it is a palindrome, considering only alphanumeric characters.

Palindrome

Write a program to count and print the total number of characters (lowercase english alphabets only), digits (0 to 9) and white spaces (single space, tab i.e. '\t' and newline i.e. '\n') entered...read more

Given the head node of the singly linked list, return a pointer pointing to the middle of the linked list.

If there are an odd number of elements, return the middle element if there are eve...read more

You are given an array of strings 'ARRSTR[]' of size 'N' and a character 'C'. Your task is to sort the 'ARRSTR[]' according to the new alphabetical order that starts with the given characte...read more

Q6. Program read data for m excel

Q7. Oops concepts of java

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