GAIN Credit IT Executive Interview Questions and Answers for Experienced

Java , Spring, SQL questions asked without one data structure basic live coding question

Q1. What are your expectation to work with us
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Q2. How will you manage to improve with us
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It consist of 4 DSA ques and few quiz and opps concept based ques
1st was string based Medium level ques.
2nd was a ques based on 2 pointer
And other 2 was from Vector and Linked list easy ques

Q1. It was stock buy and sell ques on leetcode where we need to find Max profit and what day to buy and sell
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Q2. 2d array ques to print natural numbers in spiral form
Ans. 
Print natural numbers in spiral form using a 2D array.
• Create a 2D array with dimensions n x n.

• Initialize variables for row and column boundaries.

• Iterate through the array in a spiral pattern, filling in natural numbers.
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Q3. Hard level linked list ques
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Exam to test reasoning and aptitude, and speed to answer them

Dsa question easy to medium level

Q1. Just culture fit question, and medium dsa questions
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Q2. Print pyramid from Fibonacci sequence
Ans. 
Print pyramid from Fibonacci sequence
• Generate Fibonacci sequence up to a certain number

• Use the Fibonacci numbers to create the pyramid structure

• Print each row of the pyramid with appropriate spacing
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Q3. Linked list sort
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Q4. Design SQL tables for library management system
Ans. 
Design SQL tables for library management system
• Create tables for books, authors, members, transactions, etc.

• Use primary and foreign keys to establish relationships between tables

• Include columns like book title, author name, member ID, due date, etc.
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Q5. Valid bracket dsa question
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A topic was assigned, and we need to present our perspectives.

A case study was provided about a company's sales and growth.

Q1. Were the questions primarily focused on personal achievements and future aspirations?
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Technical sql questions

Oops concept and sql db questions

Q1. Dependency injection
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Easy coding questions DSA

Q1. Reverse a linked list
Ans. 
Reverse a linked list by changing the pointers direction
• Start with three pointers: current, previous, and next

• Iterate through the linked list, updating the pointers to reverse the direction

• Update the head pointer to point to the new first node
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Q2. Find middle of linked list
Ans. 
To find the middle of a linked list, use the slow and fast pointer technique.
• Initialize two pointers, slow and fast, both pointing to the head of the linked list.

• Move slow pointer by one step and fast pointer by two steps until fast reaches the end of the list.

• The position of the slow pointer will be the middle of the linked list.
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Q1. Pick from a basket of oranges
Ans. 
The question is asking to pick an orange from a basket.
• Carefully select a ripe orange without any bruises or blemishes

• Gently twist the orange off the stem to avoid damaging the fruit

• Check for firmness and weight to determine ripeness
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Q1. Question was related to Java like difference between abstract class and interface,how linked list ,hash map ,arraylist work internally
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Q2. Question related to spring boot like @autowired annotations, how spring boot is different from spring
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Q3. Coding questions: reverseString ,factorial using Recursion only,how to find middle element in LL
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Q1. Some basic questions related to JS and Java both
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Q2. Managerial related questions,
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Q1. Promises ,async and await related questions
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Q2. Question related to API ,and scenario based questions
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Soo easy aptitude exam asked questions

Q1. What is oops in Java,fibo, and sorting
Ans. 
OOPs in Java refers to Object-Oriented Programming concepts, fibo likely refers to Fibonacci sequence, and sorting refers to arranging elements in a specific order.
• OOPs in Java includes concepts like classes, objects, inheritance, polymorphism, and encapsulation.

• Fibo likely refers to the Fibonacci sequence, where each number is the sum of the two preceding ones (e.g. 0, 1, 1, 2, 3, 5, ...).

• Sorting involves arranging el...read more
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Q2. Why is garbage collector is used in java etc more of java questions
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Q3. Can main can be overloaded and overrided
Ans. 
Yes, main can be overloaded but not overridden in C++.
• Main can be overloaded by defining multiple functions with different parameters.

• Example: int main() and int main(int argc, char* argv[])

• Main cannot be overridden as it is a static function of the program.
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