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I applied via Naukri.com and was interviewed before Feb 2023. There was 1 interview round.
Object-oriented programming concepts that help in organizing and designing code for reusability and maintainability.
Encapsulation: Bundling data and methods that operate on the data into a single unit (class).
Inheritance: Allowing a class to inherit properties and behavior from another class.
Polymorphism: Ability of objects to take on multiple forms or types.
Abstraction: Hiding the implementation details and showing on
Stream API is a feature in Java that allows processing collections of objects in a functional style.
Stream API provides a way to perform operations on collections like filter, map, reduce, etc.
It supports functional programming paradigms like lambda expressions.
Example: List
Lambda expressions are anonymous functions that allow you to pass behavior as an argument to a method.
Lambda expressions are used to provide a concise way to represent behavior as data.
They are commonly used in functional programming and can be used to implement functional interfaces.
Lambda expressions can be used to iterate through collections using the forEach method.
The Java memory model defines how threads interact through memory when accessing shared data.
Defines the rules for reading and writing to shared variables in a multithreaded environment
Ensures visibility of changes made by one thread to other threads
Specifies the order in which operations are executed and how they are synchronized
I applied via Job Portal and was interviewed in Aug 2020. There was 1 interview round.
Java 8 introduced several new features including lambda expressions, functional interfaces, and streams.
Lambda expressions allow for more concise and functional programming style.
Functional interfaces enable the use of lambda expressions.
Streams provide a powerful way to process collections of data in a functional manner.
Default methods in interfaces allow for adding new methods to existing interfaces without breaking ...
Handle out-of-memory exception by analyzing heap dump and optimizing code.
Analyze heap dump to identify memory leaks
Optimize code to reduce memory usage
Increase heap size if necessary
Use memory profiling tools like JProfiler or VisualVM
Avoid creating unnecessary objects
Use caching to reduce object creation
Implement garbage collection strategies
Shallow and deep comparison in Strings with code example
Shallow comparison checks if two String variables refer to the same object in memory
Deep comparison checks if two String variables have the same sequence of characters
Shallow comparison can be done using the '==' operator
Deep comparison can be done using the 'equals()' method
Example: String str1 = 'hello'; String str2 = 'hello'; str1 == str2; //shallow comparison ...
A Spring Boot application follows a predefined flow of execution.
Application starts with main() method
Spring Application Context is initialized
Beans are created and dependencies are injected
Application starts serving requests
Requests are handled by Controllers and Services
Responses are returned to the client
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I was interviewed before Mar 2016.
posted on 31 Oct 2022
I applied via Company Website and was interviewed before Oct 2021. There were 2 interview rounds.
I have followed the MVC, Singleton, and Factory design patterns in my past projects.
MVC pattern for separating concerns and improving maintainability
Singleton pattern for ensuring only one instance of a class is created
Factory pattern for creating objects without exposing the instantiation logic
Applications can be secured by implementing various security measures such as authentication, authorization, encryption, and regular updates.
Implement strong authentication mechanisms such as multi-factor authentication
Use authorization to restrict access to sensitive data and functionalities
Encrypt sensitive data both in transit and at rest
Regularly update the application and its dependencies to patch security vulnera...
posted on 19 Apr 2020
I applied via Company Website and was interviewed in Oct 2019. There were 4 interview rounds.
I applied via Recruitment Consulltant and was interviewed in Nov 2021. There were 3 interview rounds.
Basic data structure related coding questions like creating a linked list and adding items to it median.
Max heap implementation.
Concurrency related questions.
posted on 10 Jul 2024
LRU cache design involves maintaining a cache with limited capacity and removing the least recently used item when the cache is full.
Use a doubly linked list to maintain the order of items based on their usage.
Implement a hash map for fast access to items in the cache.
When a new item is accessed, move it to the front of the linked list to mark it as the most recently used.
When the cache is full, remove the item at the ...
Topic wt is ms office
Eassys dscover the basic structure of all essaysand see what a goo d essay introduction and conclusion look like
I applied via Job Fair and was interviewed in Jun 2023. There were 3 interview rounds.
Ms office,Core Java , Tally , C,
In my Opinion,view , If you ask me, As far as I can see/I am Concerned , It seems to me that , I think /feel/reckon/ belive , If you want my option , What we have to decide
I applied via Campus Placement and was interviewed in Dec 2020. There were 3 interview rounds.
Static is a keyword in Java used to create class-level variables and methods.
Static variables are shared among all instances of a class
Static methods can be called without creating an instance of the class
Static blocks are used to initialize static variables
Static import is used to import static members of a class
The program replaces consecutive same characters in a string with a single '$'.
Iterate through each character in the string
Compare the current character with the next character
If they are the same, replace the next character with '$'
Continue until the end of the string
Function overloading is having multiple functions with the same name but different parameters. Function overriding is having a derived class implement a method with the same name and parameters as a method in its base class.
Function overloading is used to provide different ways of calling a function with different parameters.
Function overriding is used to provide a specific implementation of a method in a derived class...
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