Reverie Language Technologies Interview Questions, Process, and Tips

25 mcq from general aptitude, cn.

2 qns, one from graph and other string

Q1. List duplicate elements from the array
Ans. 
Find duplicate elements in an array of strings
• Iterate through the array and use a HashMap to store elements and their frequencies

• Identify elements with frequency greater than 1 as duplicates

• Return the list of duplicate elements
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Q2. Remove duplicate words from string
Ans. 
Remove duplicate words from a string
• Split the string into an array of words

• Create a new array to store unique words

• Iterate through the original array and add words to the new array if they are not already present

• Join the unique words array back into a string
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Q1. Reverse the given linked list
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Q2. Longest comman subsequence
Ans. 
Longest common subsequence is the longest sequence of characters that appear in the same order in both strings.
• Use dynamic programming to solve this problem efficiently.

• Create a 2D array to store the lengths of longest common subsequences.

• Iterate through the strings and fill the array based on the characters' matches.

• Trace back the array to find the actual longest common subsequence.
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Q1. Tell me about yourself
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Q2. Define yourself in three words
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Simple DSA question of string manipulation

Q1. Questions about past Experiences
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Simple question from number system

Q1. What is oops in java
Ans. 
OOPs in Java stands for Object-Oriented Programming concepts which include inheritance, encapsulation, polymorphism, and abstraction.
• OOPs in Java is a programming paradigm that uses objects to design applications.

• It includes four main concepts: inheritance, encapsulation, polymorphism, and abstraction.

• Inheritance allows a class to inherit properties and behavior from another class.

• Encapsulation refers to the bundling o...read more
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Q2. What is inheritance in java
Ans. 
Inheritance in Java allows a class to inherit properties and behavior from another class.
• Inheritance enables code reusability and promotes the concept of hierarchical classification.

• Subclasses inherit attributes and methods from their superclass.

• Example: class Animal { } class Dog extends Animal { }

• Superclass is also known as base class, and subclass is also known as derived class.
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Q1. Create prototype in js
Ans. 
Creating a prototype in JavaScript
• Use the Object.create() method to create a prototype object

• Add properties and methods to the prototype object

• Use the prototype object to create new instances of an object
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