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Check if array of strings is a palindrome or not.
Iterate through the array and compare each string with its reverse to check for palindrome.
Ignore spaces and punctuation while checking for palindrome.
Example: ['madam', 'racecar', 'hello', 'level'] should return true.
Inheritance is a concept in object-oriented programming where a class can inherit attributes and methods from another class.
Allows a class to inherit attributes and methods from another class
Promotes code reusability and reduces redundancy
Creates a parent-child relationship between classes
Types of inheritance include single, multiple, multilevel, and hierarchical
Example: Class 'Animal' can be a parent class with attrib...
Objects in OOPs refer to instances of classes that encapsulate data and behavior.
Objects are created based on a class blueprint
Objects have attributes (data) and methods (behavior)
Objects allow for data encapsulation and abstraction
Example: Class 'Car' can have objects like 'Toyota', 'Honda', etc.
Bubble sort is a simple sorting algorithm that repeatedly steps through the list, compares adjacent elements, and swaps them if they are in the wrong order.
Start by comparing the first two elements of the array and swap them if necessary.
Continue comparing adjacent elements and swapping them until the array is sorted.
Repeat this process for each element in the array until no more swaps are needed.
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I appeared for an interview before Mar 2021.
Round duration - 30 minutes
Round difficulty - Medium
This was a MCQ round. 30 ques in 30 mins consisting of difficult quantitative aptitude questions were to be solved.
Round duration - 60 minutes
Round difficulty - Medium
In this test round, 2 coding questions were given. Either write the code or pseudo code
Given an integer N
, find all possible placements of N
queens on an N x N
chessboard such that no two queens threaten each other.
A queen can attack another queen if they ar...
Given an integer array arr
of size 'N' containing only 0s, 1s, and 2s, write an algorithm to sort the array.
The first line contains an integer 'T' representing the n...
Round duration - 60 minutes
Round difficulty - Easy
This was a technical round with questions on DSA.
You are given a string of length N
. Your task is to reverse the string word by word. The input may contain multiple spaces between words and may have leading o...
You are provided with the head of a linked list containing integers. Your task is to determine if the linked list is circular.
Round duration - 30 minutes
Round difficulty - Easy
HR round with typical behavioral problems.
Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.
Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.
I applied via Campus Placement and was interviewed in Apr 2021. There were 3 interview rounds.
I appeared for an interview in Oct 2020.
Round duration - 90 minutes
Round difficulty - Easy
There were two section Aptitude and Coding.
Imagine you are Harshad Mehta's friend, and you have been given the stock prices of a particular company for the next 'N' days. You can perform up to two buy-and-sell ...
Round duration - 60 minutes
Round difficulty - Easy
This was the first technical interview.
You are given an integer array 'ARR' of size 'N' and an integer 'S'. Your task is to find and return a list of all pairs of elements where each sum of a pair equals 'S'.
Tip 1 : Prepare theory subjects well
Tip 2 : Start doing some development and learn a framework from 2nd year
Tip 1: Mention projects with technologies
Tip 2: Make important words in bold
I applied via Naukri.com and was interviewed before Sep 2020. There were 3 interview rounds.
Difficulty level is medium
posted on 11 Jun 2024
Strings are immutable to ensure data integrity and security by preventing accidental or intentional modification.
Immutable strings prevent accidental changes to data
Enhances security by preventing data tampering
Allows for efficient memory management
Count the number of repeated words in a given string
Split the string into words using a delimiter like space
Create a hashmap to store word frequencies
Iterate through the words and update the hashmap accordingly
Count the number of words with frequency greater than 1
I applied via Walk-in and was interviewed in Dec 2021. There were 3 interview rounds.
Basic Programming questions will be there
Java programs are executed by the Java Virtual Machine (JVM) which interprets and executes the bytecode generated by the Java compiler.
Java source code is compiled into bytecode by the Java compiler
The bytecode is platform-independent and can be executed on any device with a JVM
The JVM interprets the bytecode and executes the instructions
The JVM manages memory, handles exceptions, and provides other runtime services
Exa...
Abstract class is a class that cannot be instantiated and may contain abstract methods.
Cannot be instantiated directly
May contain abstract methods that must be implemented by subclasses
Can have both abstract and non-abstract methods
Used for creating a template for other classes to inherit from
A subquery is a query nested within another query, and the LIKE operator is used in SQL to search for a specified pattern in a column.
A subquery is enclosed in parentheses and executed first before the main query.
The result of a subquery can be used in comparison with the main query's result.
The LIKE operator is used with the WHERE clause to search for a specified pattern in a column.
The LIKE operator allows for wildca...
I am a passionate software developer with experience in Java, Python, and web development.
Experienced in Java, Python, and web development technologies
Strong problem-solving skills and ability to work in a team
Completed multiple projects including a web-based inventory management system
based on 1 interview experience
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