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I applied via Referral and was interviewed in Dec 2024. There were 2 interview rounds.
Hld question and coding question
Web crawler assignment to crawl e-commerce websites
I applied via Campus Placement
Simple coding question based on strong manipulation.
I was interviewed in Dec 2021.
Round duration - 60 minutes
Round difficulty - Easy
Technical Interview round with questions on DSA.
Given two sorted integer arrays ARR1
and ARR2
of size M and N, respectively, merge them into ARR1
as one sorted array. Assume that ARR1
has a size of M + N to hol...
A simple approach would be to create a new arrays with size as sum of the sizes of both the arrays. Copy the elements of both the arrays in the new array and sort the array.
A space optimised approach also exists. While traversing the two sorted arrays parallelly, if we encounter the jth second array element is smaller than ith first array element, then jth element is to be included and replace some kth element in...
You are given a stack of integers. Your task is to reverse the stack using recursion without using any extra space other than the internal stack space used due to recursion...
Recursion can be used to reverse a stack. In this approach, we pop the top element from the given stack and recursively call another instance of the same function. When this child function returns to the parent function, append the popped element to the bottom of the stack. For this, two recursive functions can be used: reverseStack() and insertAtBottom().
reverseStack() :
It checks if the stack is empty or not. Th...
Round duration - 60 minutes
Round difficulty - Easy
Technical Interview round with question on OOPS.
It is:
A specification where working of Java Virtual Machine is specified. But implementation provider is independent to choose the algorithm. Its implementation has been provided by Oracle and other companies.
An implementation Its implementation is known as JRE (Java Runtime Environment).
Runtime Instance Whenever you write java command on the command prompt to run the java class, an instance of JVM is created.
When you use a new keyword, the JVM creates an instance for the object in a heap. While the reference of that object stores in the stack. There exists only one heap for each running JVM process. When heap becomes full, the garbage is collected.
Polymorphism in Java is a concept by which we can perform a single action in different ways. Polymorphism is derived from 2 Greek words: poly and morphs. The word "poly" means many and "morphs" means forms. So polymorphism means many forms.
There are two types of polymorphism in Java: compile-time polymorphism and runtime polymorphism. We can perform polymorphism in java by method overloading and method overriding.
If yo...
If subclass (child class) has the same method as declared in the parent class, it is known as method overriding in Java. In other words, If a subclass provides the specific implementation of the method that has been declared by one of its parent class, it is known as method overriding.
Rules for Java Method Overriding
The method must have the same name as in the parent class
The method must have the same parameter as in t...
Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.
Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.
I applied via Recruitment Consultant and was interviewed in Aug 2021. There was 1 interview round.
Rakuten interview questions for designations
Design and code a REST API for a software developer interview.
Define the endpoints and HTTP methods for the API (e.g. GET /users, POST /users)
Implement authentication and authorization mechanisms (e.g. JWT tokens)
Use proper status codes for responses (e.g. 200 OK, 401 Unauthorized)
Include error handling and validation for input data
Document the API using tools like Swagger or OpenAPI
Calculate word frequency using Stream API and lambda expressions
Use Stream API to convert array of strings to stream
Use Collectors.groupingBy to group words by their frequency
Use Collectors.counting to count the occurrences of each word
I applied via Naukri.com and was interviewed in Aug 2024. There was 1 interview round.
Consumers read data from topics, while producers write data to topics in Kafka.
Consumers subscribe to topics to read messages from them
Producers publish messages to topics for consumers to read
Consumers can be part of a consumer group to scale out consumption
Producers can specify key for messages to control partitioning
I applied via Approached by Company and was interviewed in Jul 2024. There were 5 interview rounds.
Asked some basic level questions
Asked little bit hard questions
Asked depth questions and wrote some sample programs
I applied via Referral
It was good and nice to talk
Interview experience
based on 7 reviews
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