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I applied via Company Website and was interviewed in Mar 2024. There was 1 interview round.
final keyword can be used to make a variable's value constant and unchangeable
Use 'final' keyword before the variable declaration
Once a variable is declared as final, its value cannot be changed
Example: final int num = 10; // value of num cannot be modified
Yes, deadlock is a situation in concurrent programming where two or more threads are waiting for each other to release resources, causing them to be stuck indefinitely.
Deadlock occurs when two or more threads are blocked forever, waiting for each other to release resources.
It can happen when multiple threads have locks on different resources and each thread is trying to acquire a lock held by another thread.
Example: Th...
Use a HashSet to store unique elements from the arraylist
Create a HashSet and add all elements from the arraylist to it
Since HashSet does not allow duplicates, only unique elements will be stored
Convert the HashSet back to an arraylist if needed
Conflicts can arise in git and github when multiple developers make changes to the same file or branch simultaneously.
Conflicts can occur when two developers make changes to the same line of code in a file.
Conflicts can also arise when merging branches that have diverged and contain different changes.
Communication among team members is crucial to avoid conflicts and resolve them efficiently.
Using pull requests and code...
Spring came into picture to simplify Java development by providing features like dependency injection, aspect-oriented programming, and transaction management.
Spring provides dependency injection which helps in managing object dependencies and promotes loose coupling.
It supports aspect-oriented programming for separating cross-cutting concerns like logging, security, and transaction management.
Spring offers robust tran...
Polymorphism is the ability of a single function or method to operate on different types of data.
Polymorphism allows objects of different classes to be treated as objects of a common superclass.
There are two types of polymorphism: compile-time (method overloading) and runtime (method overriding).
Example: A superclass Animal with methods eat() and sleep(). Subclasses Dog and Cat override these methods with their own imp
Collection framework in Java is a set of classes and interfaces that provide a way to store and manipulate groups of objects.
It provides a way to store, retrieve, and manipulate groups of objects.
It includes interfaces like List, Set, and Map, and classes like ArrayList, HashSet, and HashMap.
Collections framework simplifies the process of working with collections of objects in Java.
Map is a collection of key-value pairs where keys are unique, while Set is a collection of unique elements with no duplicates.
Map allows duplicate values but keys must be unique
Set does not allow duplicate elements
Map is accessed using keys, while Set is accessed using elements
Example: Map - {1: 'apple', 2: 'banana'}, Set - {'apple', 'banana'}
ArrayList is a better choice when space is not an issue due to its constant time access, while LinkedList has better performance for insertions and deletions.
ArrayList is better for random access as it provides constant time access to elements based on index.
LinkedList is better for insertions and deletions as it does not require shifting elements in memory.
Example: If you need to frequently add or remove elements in a...
JavaFX is a software platform for creating and delivering desktop applications, while JSP is a technology used for creating dynamic web pages.
JavaFX is used for creating rich internet applications with a modern look and feel.
JSP is used for developing dynamic web pages with Java code embedded in HTML.
JavaFX and JSP can be used together to create interactive web applications.
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I appeared for an interview before Mar 2016.
I appeared for an interview before Sep 2019.
I applied via Naukri.com and was interviewed in Dec 2020. There was 1 interview round.
Banking involves managing financial transactions, while credit cards allow users to borrow money for purchases.
Banking involves depositing and withdrawing money, managing accounts, and providing loans.
Credit cards allow users to borrow money for purchases and pay it back with interest.
Credit cards often come with rewards programs or cash back incentives.
Credit card debt can accumulate quickly and lead to financial diff
I applied via Referral and was interviewed in Aug 2024. There were 3 interview rounds.
I have successfully managed multiple projects and teams, resulting in increased efficiency and productivity.
Led cross-functional teams to successfully launch new products
Implemented process improvements that resulted in a 20% increase in productivity
Managed a budget of $1 million for a marketing campaign
IDFC is a leading financial institution in India known for its innovative financial solutions and commitment to sustainable development.
IDFC is a well-established financial institution in India with a strong reputation in the market.
They are known for their focus on providing innovative financial solutions to their clients.
IDFC has a track record of supporting sustainable development initiatives in the country.
The comp...
I applied via Naukri.com and was interviewed in Jan 2024. There were 2 interview rounds.
Online test will be done
I appeared for an interview in Jan 2025.
posted on 16 Sep 2022
I applied via Campus Placement and was interviewed before Sep 2021. There were 2 interview rounds.
It had more than 30 aptitude questions and 2 coding questions
I applied via Campus Placement and was interviewed in Dec 2020. There were 3 interview rounds.
Static is a keyword in Java used to create class-level variables and methods.
Static variables are shared among all instances of a class
Static methods can be called without creating an instance of the class
Static blocks are used to initialize static variables
Static import is used to import static members of a class
The program replaces consecutive same characters in a string with a single '$'.
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...
Some of the top questions asked at the RBL Bank Java Developer interview -
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