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Struts is a framework for building Java web applications based on the Model-View-Controller (MVC) design pattern.
Struts framework is based on MVC architecture
It uses ActionServlet as the controller
Struts configuration is done using XML files like struts-config.xml
It provides built-in support for form validation and error handling
Struts actions are mapped to URLs in struts-config.xml
I applied via Naukri.com and was interviewed in Apr 2022. There were 2 interview rounds.
HANA is an in-memory database platform while ECC is a traditional ERP system.
HANA is designed to handle large amounts of data in real-time while ECC is not optimized for real-time processing.
HANA uses column-based storage while ECC uses row-based storage.
HANA has a simpler data model and can handle unstructured data while ECC has a more complex data model.
HANA is a newer technology while ECC has been around for decades...
I was interviewed in Mar 2022.
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posted on 18 Jan 2025
I applied via Referral and was interviewed in Dec 2024. There were 2 interview rounds.
String manipulation questions easy not that much hard
Reverse a string based on input
Use a loop to iterate through the characters of the input string
Append each character to the beginning of a new string to reverse it
Return the reversed string as the output
Dependency Injection in Spring is a design pattern where objects are passed their dependencies rather than creating them internally.
In Spring, dependencies are injected into a class through constructor injection, setter injection, or field injection.
This helps in achieving loose coupling between classes and makes the code more testable and maintainable.
Example: @Autowired annotation in Spring is used for dependency inj
I have over 8 years of experience in IT, specializing in software development and project management.
Developed web applications using Java, Spring, and AngularJS
Led a team of developers in implementing a new CRM system for a large client
Managed multiple projects simultaneously, ensuring on-time delivery and client satisfaction
posted on 17 Dec 2024
posted on 23 Mar 2024
Decorators in Python are functions that modify the behavior of other functions or methods. __name__ == __main__ is used to check if a Python script is being run directly or imported as a module.
Decorators are used to add functionality to existing functions without modifying their code.
They are defined using the @decorator syntax before the function definition.
Example: @staticmethod decorator in Python is used to define...
posted on 11 Mar 2024
I applied via Naukri.com and was interviewed in Feb 2024. There was 1 interview round.
I was interviewed before Jan 2021.
10 min aptitude test
3 coding problem to solve on hackerrank
Multiple choice test
I applied via Naukri.com and was interviewed in Jul 2022. There was 1 interview round.
Indexes are used to improve database performance. Clustered indexes determine the physical order of data, while non-clustered indexes do not.
Indexes are used to speed up data retrieval operations in a database.
Clustered indexes determine the physical order of data in a table, while non-clustered indexes do not.
A table can have only one clustered index, but multiple non-clustered indexes.
Clustered indexes are generally ...
Query to delete duplicate rows from a table
Use GROUP BY clause to group the rows by their unique values
Use HAVING clause to filter out the groups with count greater than 1
Use DELETE statement to delete the duplicate rows
Singleton pattern restricts the instantiation of a class to a single instance and provides a global point of access to it.
Create a private constructor to restrict instantiation of the class
Create a private static instance of the class
Create a public static method to access the instance
Ensure thread safety if necessary
Examples: Database connection, Logger, Configuration settings
Handle exceptions in stored procedures by using TRY-CATCH blocks.
Use TRY-CATCH blocks to catch and handle exceptions
Log the error message and severity level
Rollback the transaction if necessary
Rethrow the error if it cannot be handled
Use RAISERROR to raise custom error messages
SOLID principles are a set of five design principles that help in creating maintainable and scalable software.
S - Single Responsibility Principle: A class should have only one reason to change.
O - Open-Closed Principle: Software entities should be open for extension but closed for modification.
L - Liskov Substitution Principle: Subtypes should be substitutable for their base types.
I - Interface Segregation Principle: C...
throw is used to throw an exception while throw exception is used to throw a specific exception.
throw is used to throw any type of exception while throw exception is used to throw a specific type of exception.
throw exception is followed by the type of exception that needs to be thrown.
throw can be used to throw any object while throw exception can only be used to throw an exception object.
Example: throw new Exception("
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