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Function overloading is having multiple functions with the same name but different parameters. Function overriding is having a function in a subclass with the same name and parameters as a function in the superclass.
Function overloading is used to provide different ways to call a function with different parameters.
Function overriding is used to provide a specific implementation of a function in a subclass that is ...
Design pattern is a reusable solution to a commonly occurring problem in software design.
Design patterns provide a common language for developers to communicate solutions.
They help in creating flexible, maintainable, and scalable software.
Examples include Singleton, Factory, Observer, and MVC pattern.
Design patterns are categorized into three types: Creational, Structural, and Behavioral.
Program to check if a given string is a palindrome
Convert the string to lowercase to ignore case sensitivity
Remove all non-alphanumeric characters from the string
Reverse the string and compare it with the original string
If they are the same, then the string is a palindrome
Jagged array is an array of arrays where each array can have different lengths.
Each array can have different number of elements
Can be used to represent tables with varying number of columns
Example: string[][] jaggedArray = new string[3][];
What people are saying about Oracle
Ref and out are both used to pass arguments by reference in C#. Ref is bidirectional while out is unidirectional.
Ref and out are used to pass arguments by reference instead of by value
Ref is used for both input and output parameters while out is only used for output parameters
Ref requires the variable to be initialized before passing while out does not
Example: void MyMethod(ref int x) { x = x + 1; }
Example: void M...
SOLID is a set of principles for object-oriented programming that aims to make software more maintainable, scalable, and robust.
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 S...
CLR is the runtime environment for .NET applications that manages memory, security, and execution of code.
CLR stands for Common Language Runtime
It compiles code into an intermediate language (IL) that can run on any platform with CLR installed
CLR manages memory through garbage collection
It provides security through code access security (CAS)
CLR also includes just-in-time (JIT) compilation for improved performance
IIS is a web server that handles HTTP requests and responses.
IIS stands for Internet Information Services.
It is a component of Windows Server.
It listens for incoming HTTP requests on a specified port.
It processes the request and sends back a response.
It can host multiple websites on a single server.
It supports various protocols like HTTP, HTTPS, FTP, SMTP, etc.
It can be configured using the IIS Manager tool.
It can...
I applied via Company Website and was interviewed in Oct 2023. There was 1 interview round.
I applied via LinkedIn and was interviewed in Aug 2022. There were 4 interview rounds.
CLR is the runtime environment for .NET applications that manages memory, security, and execution of code.
CLR stands for Common Language Runtime
It compiles code into an intermediate language (IL) that can run on any platform with CLR installed
CLR manages memory through garbage collection
It provides security through code access security (CAS)
CLR also includes just-in-time (JIT) compilation for improved performance
SOLID is a set of principles for object-oriented programming that aims to make software more maintainable, scalable, and robust.
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 Segreg...
Design pattern is a reusable solution to a commonly occurring problem in software design.
Design patterns provide a common language for developers to communicate solutions.
They help in creating flexible, maintainable, and scalable software.
Examples include Singleton, Factory, Observer, and MVC pattern.
Design patterns are categorized into three types: Creational, Structural, and Behavioral.
Program to check if a given string is a palindrome
Convert the string to lowercase to ignore case sensitivity
Remove all non-alphanumeric characters from the string
Reverse the string and compare it with the original string
If they are the same, then the string is a palindrome
Function overloading is having multiple functions with the same name but different parameters. Function overriding is having a function in a subclass with the same name and parameters as a function in the superclass.
Function overloading is used to provide different ways to call a function with different parameters.
Function overriding is used to provide a specific implementation of a function in a subclass that is diffe...
Ref and out are both used to pass arguments by reference in C#. Ref is bidirectional while out is unidirectional.
Ref and out are used to pass arguments by reference instead of by value
Ref is used for both input and output parameters while out is only used for output parameters
Ref requires the variable to be initialized before passing while out does not
Example: void MyMethod(ref int x) { x = x + 1; }
Example: void MyMeth...
Jagged array is an array of arrays where each array can have different lengths.
Each array can have different number of elements
Can be used to represent tables with varying number of columns
Example: string[][] jaggedArray = new string[3][];
IIS is a web server that handles HTTP requests and responses.
IIS stands for Internet Information Services.
It is a component of Windows Server.
It listens for incoming HTTP requests on a specified port.
It processes the request and sends back a response.
It can host multiple websites on a single server.
It supports various protocols like HTTP, HTTPS, FTP, SMTP, etc.
It can be configured using the IIS Manager tool.
It can also...
I want to join Oracle to leverage its innovative technologies and contribute to impactful projects in a collaborative environment.
Oracle is a leader in cloud computing, and I am excited about working on cutting-edge cloud solutions that drive digital transformation.
The opportunity to work with diverse teams on global projects aligns with my passion for collaboration and learning from different perspectives.
I admire Ora...
I tend to be overly critical of my own work, which can slow down my progress and decision-making.
I often spend extra time refining code, aiming for perfection, which can delay project timelines.
In team settings, I sometimes hesitate to share my ideas, fearing they may not meet my own high standards.
To combat this, I've started setting stricter deadlines for myself to ensure I complete tasks efficiently.
I applied via Naukri.com and was interviewed before Mar 2022. There were 6 interview rounds.
I applied via Walk-in and was interviewed before Feb 2021. There were 2 interview rounds.
Be good on basics of coding
I applied via Approached by Company and was interviewed before Jun 2021. There were 2 interview rounds.
Frameworks provide structure and pre-built components for software development, but can also limit flexibility and require learning curve.
Advantage: Provides structure and pre-built components for faster development
Advantage: Can improve code quality and maintainability
Disadvantage: Can limit flexibility and customization
Disadvantage: Requires learning curve and potential dependency issues
Example: ReactJS provides a fr...
Oops stands for Object-Oriented Programming. It is a programming paradigm that uses objects to represent real-world entities.
Advantages: code reusability, modularity, encapsulation, inheritance, polymorphism
Disadvantages: complexity, steep learning curve, performance overhead
Example: creating a class 'Car' with properties like 'make', 'model', and 'year', and methods like 'start_engine' and 'stop_engine'
I applied via Company Website and was interviewed before Oct 2019. There were 4 interview rounds.
I applied via Campus Placement and was interviewed before Nov 2021. There were 3 interview rounds.
Numerical and logical aptitude test
There are 5 rounds on datastructure and algorithm
posted on 16 Sep 2021
I appeared for an interview before Sep 2020.
Round duration - 50 minutes
Round difficulty - Easy
This was a Data Structural round.
Given a two-dimensional array/list consisting of integers 0s and 1s, where 1 represents land and 0 represents water, determine the number of distinct islands. A group of...
Count the number of distinct islands in a 2D array of 0s and 1s.
Identify islands by performing depth-first search (DFS) on the grid
Use a set to store the shape of each island and check for duplicates
Consider translations to determine distinct islands
Round duration - 50 minutes
Round difficulty - Easy
This was a Data Structural round.
You are tasked with arranging 'N' words of varying lengths such that each line contains at most 'M' characters, with each word separated by a space. The challenge is to minimiz...
The goal is to minimize the total cost of arranging 'N' words on each line with a maximum character limit 'M'.
Calculate the cost of each line as the cube of extra space characters needed to reach 'M'.
Minimize the total cost by arranging words to fit within the character limit on each line.
Ensure each word appears fully on one line without breaking across lines.
Round duration - 60 minutes
Round difficulty - Easy
This was a System Design round.
Design a system similar to Red Bus for handling bookings and onboarding vendors and customers.
Implement a user-friendly interface for customers to search and book tickets
Create a vendor portal for vendors to manage their offerings and availability
Include payment gateway integration for secure transactions
Develop a robust backend system for managing bookings, cancellations, and refunds
Utilize a database to store user in...
Round duration - 50 minutes
Round difficulty - Easy
This was a System Design round
Round duration - 50 minutes
Round difficulty - Easy
This was an HR round.
Tip 1 : Practice as much as you can.
Tip 2 : Prepare for company, not in general.
Tip 3 : Your past work should be objective and your contribution should be very clear
Tip 1 : Keep only relevant things for the job you are applying.
Tip 2 : Minimal data with measurable contribution and effect.
A generic swap function swaps two values of any data type.
The function should take two parameters of any data type.
Use a temporary variable to store the value of one parameter.
Assign the value of the second parameter to the first parameter.
Assign the value of the temporary variable to the second parameter.
Search for an element in a rotated sorted linked list.
Find the pivot point where the list is rotated.
Divide the list into two sublists based on the pivot point.
Perform binary search on the appropriate sublist.
Handle edge cases such as empty list and list with only one element.
Search an element in a rotated sorted array
Find the pivot point where the array is rotated
Divide the array into two sub-arrays based on pivot point
Perform binary search on the appropriate sub-array
Repeat until element is found or sub-array size is 1
Given a Sudoku board, find possible numbers for an empty cell.
Iterate through empty cells and check possible numbers using row, column, and box constraints.
Use a set to keep track of possible numbers for each empty cell.
Return the set of possible numbers for the given empty cell.
Find integer average of 4 unsigned integers without typecasting
Add all the integers and divide by 4
Use bit shifting to divide by 4
Handle overflow by using long long data type
Use unsigned int data type for input
Code to identify 32 bit or 64 bit architecture of a processor
Check if the operating system is 32 bit or 64 bit
If OS is 32 bit, processor is 32 bit
If OS is 64 bit, check if processor supports 64 bit architecture
Use CPUID instruction to check if processor supports 64 bit architecture
Convert binary number to base 64 integer
Divide the binary number into groups of 6 bits
Convert each group of 6 bits to decimal
Map the decimal value to the corresponding base 64 character
Concatenate the base 64 characters to form the final integer
Creating test cases for random scenarios ensures software reliability and robustness through diverse input validation.
Identify edge cases: Test with minimum and maximum input values, e.g., an empty array vs. a large array.
Use random data: Generate random inputs to simulate real-world usage, e.g., random user names or passwords.
Test invalid inputs: Ensure the system handles unexpected inputs gracefully, e.g., negative n...
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