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Oops concepts refer to Object-Oriented Programming principles like Inheritance, Polymorphism, Encapsulation, and Abstraction.
Inheritance: Allows a class to inherit properties and behavior from another class.
Polymorphism: Ability of objects to take on multiple forms.
Encapsulation: Bundling data and methods that operate on the data into a single unit.
Abstraction: Hiding the complex implementation details and showing only
I was interviewed in Sep 2020.
Round duration - 90 minutes
Round difficulty - Medium
Timing - Late in the evening(7pm - 8 pm)
Virtual round, can give from home.
Had to keep webcam on during the test.
Tab switching was not allowed, and activity was monitored.
Round duration - 20 minutes
Round difficulty - Medium
Round in the morning, with 2 interviewers.
Questions based on Resume.
Given an array of integers arr
, determine the length of the longest contiguous subarray that sums to zero.
N (an integer, the length of the array)
arr (...
Find the length of the longest contiguous subarray with zero sum in an array of integers.
Use a hashmap to store the prefix sum and its corresponding index.
Iterate through the array and update the hashmap with the current sum and index.
If the same sum is encountered again, the subarray between the two indices has a sum of zero.
Round duration - 20 minutes
Round difficulty - Easy
In the afternoon, with 3 recruiters, 2 HRs and 1 project manager.
Tip 1 : Thoroughly prepare about the skills on your resume. Expect questions from the same.
Tip 2 : Know your projects well, be ready with outcome of project, Tools and Technology used, any hardships during the project that you overcame. Have atleast 2 projects.
Tip 3 : Practice DSA questions and all the commonly asked algorithms and puzzles
Tip 1: Write your projects detailed - mostly in the following format: Name of the project, brief use case, tech stack used for development.
Tip 2: If you mention any Internships, use active verbs in the description - "Developed an Internal Dashboard which increased efficiency by 60%"
Tip 3: Mention your rank on sites like CodeForces, CodeChef(if they are good). Also add any extra-curriculars you were part of, Eg- "Vice President, Robotics Club ". Presents you as a well rounded individual
I was interviewed before Mar 2016.
posted on 2 Dec 2015
posted on 13 Mar 2015
I was interviewed in Dec 2016.
I have a strong background in software engineering and a passion for innovation, making me a valuable asset to HSBC.
I have a proven track record of successfully delivering high-quality software solutions in previous roles.
I am highly skilled in various programming languages and technologies, including Java, Python, and SQL.
I have experience working in agile development environments, allowing me to adapt quickly to chan...
posted on 10 May 2015
Multi tasking, multi processing, and multi programming are different approaches to managing tasks in an operating system.
Multi tasking allows multiple tasks to run concurrently on a single processor.
Multi processing involves multiple processors running tasks simultaneously.
Multi programming allows multiple programs to be loaded into memory and executed concurrently.
Examples of multi tasking operating systems include Wi...
Memory allocation refers to the process of assigning memory to programs during runtime.
Stack allocation is done automatically and is limited in size.
Heap allocation is done manually and is larger in size.
Stack memory is used for local variables and function calls.
Heap memory is used for dynamic memory allocation.
Memory leaks can occur if heap memory is not properly managed.
Use a shared variable and synchronization mechanisms to ensure natural order printing of numbers.
Create two threads, one for printing even numbers and the other for printing odd numbers.
Use a shared variable to keep track of the current number to be printed.
Implement synchronization mechanisms like locks or semaphores to ensure only one thread can access the shared variable at a time.
Each thread should check if it is i...
Printing a matrix in spiral order
Start from the first element and print it
Move in a spiral order towards the center of the matrix
Repeat until all elements are printed
Thread class and Runnable Interface are used for multithreading in Java.
Thread class is a predefined class in Java that provides methods to create and control threads.
Runnable interface is used to define a task that can be executed by a thread.
Thread class implements Runnable interface.
Thread class provides more control over threads than Runnable interface.
Example: Thread t = new Thread(new MyRunnable()); t.start();
Exa...
Linked List is a dynamic data structure while ArrayList is a static data structure.
Linked List is best for frequent insertion and deletion operations.
ArrayList is best for frequent access operations.
Linked List uses more memory than ArrayList.
ArrayList is faster than Linked List for accessing elements.
Use Linked List when you need to frequently add or remove elements from the list.
Use ArrayList when you need to frequen
I am not interested in a career in investment banking.
I am more interested in a career in software development
I enjoy problem-solving and creating innovative solutions through coding
Investment banking does not align with my passion and skill set
I have chosen to apply to J.P. Morgan because of their reputation, global presence, and opportunities for growth.
J.P. Morgan has a strong reputation in the financial industry.
They have a global presence with offices in multiple countries.
The company offers various opportunities for career growth and development.
J.P. Morgan is known for its innovative technology solutions in the financial sector.
I am impressed by their ...
Yes, I have made a mistake in my previous project.
I underestimated the complexity of a task and ended up missing the deadline.
I failed to properly test a feature, resulting in a bug that affected user experience.
I accidentally deleted an important file without having a backup.
I misunderstood a requirement and implemented a feature incorrectly.
I applied via Naukri.com and was interviewed in May 2020. There were 5 interview rounds.
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