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Fortune4 Technologies
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I applied via Naukri.com and was interviewed in May 2023. There were 3 interview rounds.
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Abstract class can have both abstract and non-abstract methods, while interface can only have abstract methods.
Abstract class can have method implementations, while interface cannot.
A class can implement multiple interfaces, but can only inherit from one abstract class.
Interfaces are used to define contracts for classes to implement, while abstract classes are used to provide a common base for subclasses.
Example: Abstr...
posted on 24 Oct 2024
posted on 17 Oct 2024
I applied via campus placement at Dr Mahalingam College of Engineering & Technology, Coimbatore and was interviewed in Sep 2024. There were 3 interview rounds.
Logical thinking and quantitative
One Java and one SQL and one js question
Collections are data structures that store and organize multiple elements in a single unit.
Collections provide methods to add, remove, and manipulate elements.
Examples of collections include arrays, lists, sets, and maps.
Collections can be used to efficiently manage and access large amounts of data.
A constructor is a special method in a class that is automatically called when an object of that class is created.
Constructors have the same name as the class they belong to
They are used to initialize the object's state
Constructors can have parameters to customize the initialization process
Data science is a field that uses scientific methods, algorithms, and systems to extract knowledge and insights from structured and unstructured data.
Data science involves collecting, analyzing, and interpreting large amounts of data to make informed decisions.
It combines statistics, machine learning, and domain knowledge to uncover patterns and trends in data.
Data scientists use programming languages like Python and R...
posted on 27 Aug 2024
I applied via Job Portal
I applied via Campus Placement and was interviewed in Jun 2024. There were 2 interview rounds.
A peak element in an array is an element that is greater than or equal to its neighbors.
Iterate through the array and check if the current element is greater than its neighbors.
If the element at index i is greater than or equal to elements at indices i-1 and i+1, it is a peak element.
Example: ['1', '3', '2', '4', '1'] has peak elements at index 1 and 3.
Rotate a 2D array by 90 degrees clockwise
Transpose the array
Reverse each row of the transposed array
Pollitices current generation
posted on 24 Sep 2024
I applied via Campus Placement
Easy aptitude, 30 min with 20 question
posted on 8 Oct 2024
There was 1 Dsa questions
Online test which consists of java, angular, micro services related questions
Static methods belong to the class itself, while default methods are part of an interface in Java.
Static methods can be called without creating an instance of the class, while default methods are used to provide a default implementation in interfaces.
Static methods are defined using the 'static' keyword, while default methods are defined using the 'default' keyword in Java.
Static methods cannot be overridden in subclas...
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