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I applied via LinkedIn and was interviewed in Aug 2024. There was 1 interview round.
1 hr test on HackerEarth platform, DSA questions
Top trending discussions
I applied via Campus Placement and was interviewed before Oct 2023. There was 1 interview round.
I applied via Campus Placement and was interviewed before Apr 2023. There were 2 interview rounds.
Normal apptitude queations were asked in this round
A pointer to pointer is a variable that stores the memory address of another pointer variable.
It is used to create dynamic data structures like linked lists and trees.
It allows multiple levels of indirection.
It is denoted by ** in C and C++.
Example: int **ptr;
Example: ptr = &p; where p is a pointer variable.
posted on 2 Jul 2024
Main principles of Java include object-oriented programming, platform independence, and automatic memory management.
Object-oriented programming: Java is based on classes and objects, allowing for encapsulation, inheritance, and polymorphism.
Platform independence: Java code can run on any platform that has a Java Virtual Machine (JVM) installed.
Automatic memory management: Java uses garbage collection to automatically m
The == operator compares the memory addresses of two objects, while the equals method compares the content of two objects.
The == operator is used to compare the memory addresses of two objects in Java.
The equals method is used to compare the content of two objects in Java.
Example: String str1 = new String("hello"); String str2 = new String("hello"); str1 == str2 will return false, but str1.equals(str2) will return true
I applied via Referral and was interviewed before Jul 2021. There were 2 interview rounds.
Use Fisher-Yates shuffle algorithm to play songs randomly without repetition.
Create an array of songs
Use Fisher-Yates shuffle algorithm to shuffle the array
Play the first song in the shuffled array
Remove the first song from the array
Repeat steps 3-4 until all songs have been played
Reverse a linked list
Iterate through the linked list and change the direction of the pointers
Keep track of the previous, current, and next nodes
Set the head of the linked list to the last node after reversing
Hashing algorithm to count maximum number of 1s in a 2D matrix.
Create a hash table to store the count of 1s in each row.
Traverse through each row and update the count in the hash table.
Find the row with the maximum count of 1s in the hash table.
Return the count of 1s in that row.
I applied via Campus Placement and was interviewed before Sep 2023. There was 1 interview round.
Equation, ratio and proportion
I applied via Naukri.com and was interviewed in Jun 2021. There were 3 interview rounds.
I applied via Naukri.com and was interviewed in Mar 2023. There were 2 interview rounds.
OOPs concepts in Java include inheritance, polymorphism, encapsulation, and abstraction.
Inheritance allows a subclass to inherit properties and methods from a superclass.
Polymorphism allows objects to take on multiple forms and behave differently based on their context.
Encapsulation hides the implementation details of an object and only exposes necessary information.
Abstraction allows for the creation of abstract class...
Interfaces define contracts for behavior, while inheritance allows for code reuse and polymorphism.
Interfaces allow for loose coupling and abstraction, enabling multiple implementations of the same behavior.
Inheritance allows for code reuse and extension of existing classes, reducing code duplication.
Polymorphism allows objects of different classes to be treated as if they were of the same class, simplifying code and i
SQL query for joining tables
Use JOIN keyword to combine two or more tables based on a related column
Specify the columns to be selected using SELECT keyword
Use ON keyword to specify the condition for joining the tables
Different types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL OUTER JOIN
Used Java concepts such as inheritance, polymorphism, and exception handling in my project.
Implemented inheritance to create a base class and derived classes with specific functionalities.
Utilized polymorphism to allow objects of different classes to be treated as if they were of the same class.
Implemented exception handling to handle errors and prevent program crashes.
Used interfaces to define a set of methods that a ...
Overloading is having multiple methods with the same name but different parameters. Overriding is having a method in a subclass with the same name and parameters as a method in the superclass.
Overloading is used to provide different ways to call a method with different parameters
Overriding is used to provide a specific implementation of a method in a subclass
Overloading is resolved at compile-time while overriding is r...
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