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Dassault Systemes
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I applied via Company Website and was interviewed before Oct 2021. There were 5 interview rounds.
Codingame test on java with mcqs and code test on dsa and simple logics
Hashmap is a data structure that stores key-value pairs and provides constant time complexity for insertion, deletion, and retrieval.
Hashmap uses a hash function to map keys to indices in an array.
Collisions can occur when two keys map to the same index, which can be resolved using techniques like chaining or open addressing.
Java provides a built-in implementation of Hashmap in the java.util package.
Example: HashMap
JVM is an abstract machine that executes Java bytecode. It provides a runtime environment for Java programs.
JVM stands for Java Virtual Machine
It is responsible for interpreting the compiled Java code into machine code
JVM has three main components: class loader, runtime data area, and execution engine
The class loader loads the bytecode into the runtime data area
The runtime data area is where the JVM stores data and cod...
I was interviewed before Mar 2023.
It was online, quite straight forward with basic questions
2 coding question were needs to be solved within given timeframe, infact i coudnt did bt still i got an offer
Dassault Systemes interview questions for designations
I applied via LinkedIn and was interviewed before Mar 2022. There were 2 interview rounds.
Half hour aptitude test - simple questions but 45 of them - so have to be quick
I would start by identifying the root cause of the crash and then work on finding a solution to fix it.
First, I would analyze the crash dump to identify the error message or code that caused the crash.
Then, I would review the software code to understand the context of the error and identify any potential bugs or issues.
I would also check for any known issues or bugs that have been reported by other customers.
Once I hav...
I expect a collaborative management style that encourages open communication and empowers team members.
Collaborative management style
Open communication
Empowerment of team members
I approach conflicts by actively listening, identifying the root cause, and finding a mutually beneficial solution.
Listen to all parties involved and understand their perspectives
Identify the root cause of the conflict
Brainstorm potential solutions with all parties involved
Find a mutually beneficial solution that addresses the root cause
Communicate the solution clearly and ensure all parties are satisfied
Question on breadth first search, longest common subsequence, and output of code written on paper.
Breadth first search is a graph traversal algorithm that visits all the vertices of a graph in breadth-first order.
Longest common subsequence is the longest subsequence common to all sequences in a set of sequences.
Output of code written on paper refers to writing code on paper and then analyzing the output without actuall
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I applied via Referral and was interviewed in Aug 2021. There were 4 interview rounds.
Program to fetch second highest number from array
Sort the array in descending order
Return the second element of the sorted array
Delete removes specific rows while truncate removes all rows from a table.
Delete is a DML command while truncate is a DDL command.
Delete is slower than truncate as it logs each row deletion while truncate does not.
Delete can be rolled back while truncate cannot be rolled back.
Delete can be used with a WHERE clause to remove specific rows while truncate removes all rows.
Delete does not reset the identity of a table whil
OOPS pillars are the fundamental principles of Object-Oriented Programming.
Encapsulation - bundling of data and methods that operate on that data
Inheritance - ability of a class to inherit properties and characteristics from its parent class
Polymorphism - ability of objects to take on multiple forms or have multiple behaviors
Abstraction - hiding of complex implementation details and showing only the necessary informati
Abstract and interface are both used for abstraction in object-oriented programming.
Abstract classes can have both abstract and non-abstract methods, while interfaces can only have abstract methods.
Classes can implement multiple interfaces, but can only inherit from one abstract class.
Abstract classes can have constructors, while interfaces cannot.
Interfaces are used for defining contracts, while abstract classes are u
MVC filters are used to intercept and modify HTTP requests and responses in ASP.NET MVC applications.
Filters can be used for authentication, caching, logging, and exception handling.
Filters can be applied globally or to specific controllers or actions.
The execution sequence of filters is determined by their type and scope.
The order of execution can be modified using the Order property.
Some common filter types include A...
Exception handling in MVC is crucial for error-free application development.
MVC framework provides a built-in exception handling mechanism.
Custom exception handling can be implemented using try-catch blocks.
Global exception handling can be set up in the Global.asax file.
Logging exceptions can help in debugging and improving application performance.
I applied via Recruitment Consultant and was interviewed in Jun 2021. There were 5 interview rounds.
SOLID design principles are a set of guidelines for writing maintainable and scalable code.
S - Single Responsibility Principle: A class should have only one reason to change.
O - Open/Closed Principle: A class 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: Clients should not be forced t...
Sort map entries based on values
Use a TreeMap to sort the entries based on values
Implement a Comparator to compare the values
Convert the sorted entries to a LinkedHashMap to maintain the order
Object class is inherited by each subclass separately in multiple levels of inheritance.
Each subclass inherits the object class of its parent class.
If a subclass has multiple parent classes, it inherits the object class of each parent class separately.
Object class is the root class of all classes in Java and provides basic methods and properties.
Example: Class C extends Class B, which extends Class A. Each class inheri...
Array list and hashmap are data structures used for storing and accessing data in memory.
Array list is a dynamic array that can grow or shrink in size as needed.
Hashmap is a key-value pair data structure that allows for fast retrieval of values based on their keys.
Array list is implemented using an array, while hashmap is implemented using a hash table.
Array list is useful when the data needs to be accessed sequentiall...
A runnable is a functional interface that represents a task to be executed, while a thread is a separate path of execution.
A runnable can be executed by a thread or an executor service
A thread is a lightweight process that can run concurrently with other threads
Threads can be used for parallelism, concurrency, and asynchronous programming
Example: Runnable r = () -> System.out.println("Hello World"); Thread t = new Thre
Abstract classes are used when we want to provide a default implementation, while interfaces are used when we want to enforce a contract.
Use abstract classes when you want to provide a default implementation for some methods.
Use interfaces when you want to enforce a contract that must be implemented by the implementing class.
Abstract classes can have constructors, while interfaces cannot.
A class can implement multiple ...
Find the first non-repeating character in a string.
Iterate through the string and count the frequency of each character.
Iterate through the string again and return the first character with frequency 1.
Use a hash table to store the frequency of each character.
I applied via Referral and was interviewed in Feb 2021. There were 3 interview rounds.
Sort a list of alphanumeric values.
Use a sorting algorithm to sort the array of strings.
If the values are case-insensitive, convert them to lowercase before sorting.
If the values contain numbers, use a natural sorting algorithm to sort them.
If the values contain special characters, consider their ASCII values while sorting.
Singleton design pattern ensures only one instance of a class is created and provides a global point of access to it.
Create a private constructor to prevent direct instantiation of the class
Create a private static instance of the class
Create a public static method to access the instance
Ensure thread safety by using synchronized keyword or static initialization block
Example: Database connection manager
Reverse a linked list
Iteratively swap the next and previous pointers of each node
Recursively swap the next and previous pointers of each node
Use a stack to push each node and then pop them to create the reversed list
An immutable class is a class whose instances cannot be modified after creation.
Make all fields private and final
Do not provide any setters
Make the class final so that it cannot be subclassed
If any mutable object is used as a field, return a copy of it instead of the original object
I applied via Campus Placement and was interviewed in May 2021. There was 1 interview round.
I applied via Campus Placement and was interviewed in Apr 2021. There were 3 interview rounds.
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The duration of Dassault Systemes R&D Engineer interview process can vary, but typically it takes about less than 2 weeks to complete.
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