Poornam Info Vision Jr. Software Trainee Interview Questions and Answers

Q1. How make a queue using a stack
Ans. 
To implement a queue using a stack, use two stacks and simulate the queue operations.
• Use two stacks, one for enqueue operation and one for dequeue operation.

• For enqueue operation, simply push elements onto the stack used for enqueueing.

• For dequeue operation, if the dequeue stack is empty, pop all elements from enqueue stack and push onto dequeue stack.

• Then pop from the dequeue stack to simulate dequeue operation.
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Q2. Create a linked list
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A linked list is a data structure consisting of nodes where each node points to the next node in the sequence.
• Create a Node class with data and next pointer

• Initialize a head pointer to null

• Add nodes by updating next pointers

• Traverse the list by following next pointers
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Q1. The recruiter called me in at noon the day after I applied for the role, my resume got shortlisted and the recruiter talked to me for about 19 minutes during which she asked my family background and after ...read more
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This round was 25 minutes exactly the technical interviewee asked me only 2 to 3 theoretical questions and after that, he told me to share my screen and then started asking me coding problems which consisted of 5 questions purely on code, no theory.
q1- exception handling question of (10/0--> solve this using try catch)
q2-write a class that return the area and perimeter of the rectangle
q3-remove duplicate elements from list of the set (remove_duplicates[(1,2,2,3,4,4,5]))
q4-calculate the sum of the string (sum_of_digits(1234) #output will be 10)

It was ok. I was not able to solve all the questions.

Q1. Remove the last element from a linkedlist
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Q2. Some basic questions on oops dbms and os
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Q1. Print unique numbers in list
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Print unique numbers in list
• Iterate through the list and store each number in a set to keep track of unique numbers

• Print out the numbers in the set to display the unique numbers
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Q1. Tell me about
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Q2. Your self they are asking
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Q3. What is your weakness
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Q4. Any questions ask for me
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Q5. All the best future
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Coding for international

Normal apti questions test is easy

Opps,java basics, question on array and string as an array

Q1. Machine round collection framework pattern design array mid term SIngleton design pattern
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Q1. More dmbs and sql questions salary
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Simple question on maths

Q1. Explain OOPS concept
Ans. 
OOPS (Object-Oriented Programming) is a programming paradigm based on the concept of objects, which can contain data and code.
• OOPS focuses on creating objects that interact with each other to solve complex problems

• Key principles include encapsulation, inheritance, polymorphism, and abstraction

• Encapsulation ensures that the internal state of an object is hidden from the outside world

• Inheritance allows a class to inherit...read more
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Q2. Coding array questions
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String , array,recursion.pattern question

Q1. Array string recursion
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Q2. Sort the o 1 2 0
Ans. 
The numbers should be sorted in ascending order: 0 1 2
• Use a sorting algorithm like bubble sort, selection sort, or insertion sort

• Compare each number with the next one and swap if necessary

• Repeat the process until the array is sorted
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Q3. Pattern question
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