Newgen Software Technologies Interview Questions, Process, and Tips

Q1. What is react what is different classes in react
Ans. 
React is a JavaScript library for building user interfaces.
• React is a declarative and efficient library for creating UI components.

• It allows developers to build reusable UI components that update efficiently.

• React uses a virtual DOM to efficiently update only the necessary parts of the UI.

• React supports the use of different classes to define components.

• There are two types of classes in React: functional components and ...read more
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Q2. Oops concept an basic apptitude question(i wasn't able to solve)
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Q3. What are componenets in react
Ans. 
Components in React are reusable building blocks that encapsulate the UI and its logic.
• Components are the building blocks of a React application

• They encapsulate the UI and its logic

• Components can be reused throughout the application

• They can be functional components or class components

• Components can have their own state and lifecycle methods

• Examples of components in React are buttons, forms, and navigation bars
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Q1. Background check
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Q1. Explain OOPs concepts.
Ans. 
OOPs concepts are fundamental principles of object-oriented programming that help in designing and implementing software solutions.
• Encapsulation: Bundling data and methods together in a class.

• Inheritance: Creating new classes by inheriting properties and behaviors from existing classes.

• Polymorphism: Ability of an object to take on many forms.

• Abstraction: Hiding complex implementation details and providing a simplified ...read more
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Q2. Write a program to count occurance the letter in a string.
Ans. 
This program counts the occurrence of each letter in a given string.
• Use a HashMap to store the count of each letter.

• Iterate through the characters of the string and update the count in the HashMap.

• Finally, print the count of each letter.
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Q3. Write a SQL query to find third highest salary from employee table.
Ans. 
SQL query to find third highest salary from employee table.
• Use the ORDER BY clause to sort the salaries in descending order

• Use the LIMIT clause to limit the result to the third row

• Use a subquery to exclude the highest and second highest salaries
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Q4. Difference between Array and arraylist.
Ans. 
Array is a fixed-size data structure while ArrayList is a dynamic-size data structure in Java.
• Array has a fixed length, while ArrayList can grow dynamically.

• Array can store both primitive types and objects, while ArrayList can only store objects.

• Array uses square brackets [] for declaration, while ArrayList uses angle brackets <>.

• Array provides direct access to elements using index, while ArrayList provides methods for...read more
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Q5. Explain working of Arraylist.
Ans. 
ArrayList is a dynamic array that can grow or shrink in size. It stores objects and provides methods for adding, removing, and accessing elements.
• ArrayList is part of the Java Collections Framework.

• It is implemented as a resizable array.

• Elements can be added using the add() method.

• Elements can be accessed using the get() method.

• Elements can be removed using the remove() method.

• The size() method returns the number of el...read more
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Q6. What is the default size of an arraylist.
Ans. 
The default size of an ArrayList is 10.
• The default initial capacity of an ArrayList is 10.

• If the number of elements exceeds the initial capacity, the ArrayList automatically increases its size.

• The capacity of an ArrayList can be increased manually using the ensureCapacity() method.
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Q7. Some questions from my resume about my previous experience.
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Q8. The interviewer was stupid and in my opinion they are just wasting your precious time. After the interview they don't provide any updates about the interview.
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This test consist of Logical, Reasoning, Verbal and some Programming questions

Q1. Basic Java and Frameworks question
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Q2. Stream api find the second largest salary
Ans. 
Use Stream API to find the second largest salary in an array of salaries.
• Use Stream.sorted() to sort the salaries in descending order

• Use Stream.skip(1).findFirst() to get the second highest salary
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Q1. Insert middle in the linked list
Ans. 
Insert a node in the middle of a linked list
• Find the middle node using slow and fast pointers

• Insert the new node after the middle node

• Update the pointers to maintain the linked list structure
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Q2. Reverse the linked list
Ans. 
Reverse a linked list
• Iterate through the linked list and change the direction of pointers

• Use three pointers to keep track of current, previous, and next nodes

• Update the head of the linked list to point to the last node
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Q3. Singletone design pattern
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Q1. About your self
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Q2. Previous company and project Experiance
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Q1. This round was a logical one.
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Q1. This round was a second technical round where they judge you on your overall experience.
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Q1. One of the worst experience, they had 3-4 hr round where normally in all other companies they will only discuss about salary and time for joining , but in Newgen it is more on a silly round where there so ...read more
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Q1. So again there is another hr round with CHRO Vivek so u can imagine how silly of them , and again I got a feedback stating that they will further get back to me and I have asked them to drop my candidature...read more
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Mathematics questions

2 coading questions , and sudo code

Q1. Tell me about your self?
Ans. 
I am a highly motivated Applications Engineer with a strong background in software development and problem-solving skills.
• Experienced in developing and implementing software solutions for various applications

• Skilled in troubleshooting and resolving technical issues

• Strong communication and collaboration skills

• Passionate about staying up-to-date with the latest technologies and trends
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Q2. You were a good student in college
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Q1. Array based basic easy level questions
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Q2. Reverse an array
Ans. 
Reverse an array of strings
• Use a loop to iterate through half of the array

• Swap the elements at the corresponding positions from both ends

• Continue swapping until the middle of the array is reached
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Q3. Find the second largest element in an array
Ans. 
Find the second largest element in an array
• Sort the array in descending order and return the element at index 1

• Iterate through the array and keep track of the largest and second largest elements

• Use a priority queue to find the second largest element
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