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I applied via Naukri.com and was interviewed in Jun 2021. There were 3 interview rounds.
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I applied via Naukri.com and was interviewed in Mar 2023. There were 2 interview rounds.
OOPs concepts in Java include inheritance, polymorphism, encapsulation, and abstraction.
Inheritance allows a subclass to inherit properties and methods from a superclass.
Polymorphism allows objects to take on multiple forms and behave differently based on their context.
Encapsulation hides the implementation details of an object and only exposes necessary information.
Abstraction allows for the creation of abstract class...
Interfaces define contracts for behavior, while inheritance allows for code reuse and polymorphism.
Interfaces allow for loose coupling and abstraction, enabling multiple implementations of the same behavior.
Inheritance allows for code reuse and extension of existing classes, reducing code duplication.
Polymorphism allows objects of different classes to be treated as if they were of the same class, simplifying code and i
SQL query for joining tables
Use JOIN keyword to combine two or more tables based on a related column
Specify the columns to be selected using SELECT keyword
Use ON keyword to specify the condition for joining the tables
Different types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL OUTER JOIN
Used Java concepts such as inheritance, polymorphism, and exception handling in my project.
Implemented inheritance to create a base class and derived classes with specific functionalities.
Utilized polymorphism to allow objects of different classes to be treated as if they were of the same class.
Implemented exception handling to handle errors and prevent program crashes.
Used interfaces to define a set of methods that a ...
Overloading is having multiple methods with the same name but different parameters. Overriding is having a method in a subclass with the same name and parameters as a method in the superclass.
Overloading is used to provide different ways to call a method with different parameters
Overriding is used to provide a specific implementation of a method in a subclass
Overloading is resolved at compile-time while overriding is r...
2 hours of duration and medium level leetcode questions
OS stands for Operating System. It is a software that manages computer hardware and provides services for computer programs.
OS is the software that acts as an intermediary between computer hardware and user applications.
It manages computer resources such as memory, processors, devices, and file systems.
Examples of popular operating systems include Windows, macOS, Linux, and Android.
Deadlock can be avoided by implementing proper resource allocation strategies and using techniques like deadlock prevention, avoidance, detection, and recovery.
Implement proper resource allocation strategies such as resource ordering, wait-die, wound-wait, etc.
Use techniques like deadlock prevention by ensuring that the system never enters a deadlock state, avoidance by ensuring that the system does not enter an unsafe...
I applied via Campus Placement and was interviewed in Oct 2023. There were 4 interview rounds.
Topics: maps, sorting and simple DSA question
A linked list is a data structure where each element points to the next element in the sequence.
Linked list is stored in memory as nodes, where each node contains data and a reference to the next node.
Examples of linked-list include a singly linked list, doubly linked list, and circular linked list.
In a singly linked list, each node points to the next node. In a doubly linked list, each node points to both the next and
ML models are built by collecting and preparing data, selecting a model, training the model on the data, and evaluating its performance.
Collect and prepare data by cleaning, transforming, and encoding it
Select a model based on the problem at hand (e.g. regression, classification, clustering)
Train the model using algorithms like linear regression, decision trees, or neural networks
Evaluate the model's performance using ...
Arrays store elements in contiguous memory locations, while linked lists store elements in nodes with pointers to the next node.
Arrays have fixed size, while linked lists can dynamically grow or shrink.
Accessing elements in arrays is faster (O(1)), while accessing elements in linked lists is slower (O(n)).
Inserting or deleting elements in arrays can be inefficient, as it may require shifting elements, while in linked l...
Return a string containing the first occurrence of characters in the input string.
Create an empty string to store the result.
Iterate through each character in the input string.
If the character is not already in the result string, add it to the result string.
Return the result string.
One of the hardest DSA questions I have done involved implementing a complex graph traversal algorithm.
The question required understanding of graph data structures and algorithms.
I had to implement a depth-first search or breadth-first search algorithm.
The question may have involved finding the shortest path in a weighted graph.
I had to consider edge cases and optimize the algorithm for efficiency.
I applied via Naukri.com and was interviewed in Jul 2020. There were 4 interview rounds.
I applied via Campus Placement and was interviewed before Jun 2020. There were 3 interview rounds.
I applied via Naukri.com and was interviewed before Oct 2019. There were 3 interview rounds.
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