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I applied via Walk-in and was interviewed in Apr 2024. There were 3 interview rounds.
Equals and hashcode are important for object comparison and hashing in Java.
Equals method is used to compare two objects for equality.
Hashcode method is used to generate a unique integer value for an object.
Equals and hashcode are used in collections like HashMap and HashSet for efficient retrieval and storage.
Comparable is an interface used for natural ordering, while Comparator is an interface used for custom ordering.
Comparable is implemented by the class itself to define the natural ordering of objects.
Comparator is implemented by a separate class to define custom ordering of objects.
Comparable uses the compareTo() method to compare objects, while Comparator uses the compare() method.
Example: String class implements Comp...
Singleton design pattern ensures a class has only one instance and provides a global point of access to it.
Create a private static instance of the class
Provide a public static method to access the instance
Ensure the constructor is private to prevent instantiation
HashMap is non-synchronized and allows null values, while Hashtable is synchronized and does not allow null keys or values.
HashMap is non-synchronized, while Hashtable is synchronized
HashMap allows null values, while Hashtable does not allow null keys or values
HashMap is faster than Hashtable
HashMap is part of the Java Collections Framework, while Hashtable is a legacy class
At my last company, effective communication and collaboration among team members went well, but there were challenges with project timelines and resource allocation.
Effective communication and collaboration among team members
Challenges with project timelines
Challenges with resource allocation
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 was interviewed before Mar 2016.
posted on 13 Mar 2015
posted on 13 May 2017
I was interviewed before May 2016.
posted on 2 Dec 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...
I applied via Naukri.com and was interviewed in May 2020. There were 5 interview rounds.
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