Encore Capital Group Software Developer Interview Questions, Process, and Tips for Freshers

Q1. 1)Project related,
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Q2. What is the Polymorphism?
Ans. 
Polymorphism is the ability of a function or method to behave differently based on the object it is acting upon.
• Polymorphism allows objects of different classes to be treated as objects of a common superclass.

• There are two types of polymorphism: compile-time (method overloading) and runtime (method overriding).

• Example: Inheritance in object-oriented programming languages like Java allows for polymorphism.
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Q3. What is RestController?
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RestController is a class in Spring framework used to handle HTTP requests and return responses as JSON or XML.
• Handles HTTP requests in Spring framework

• Returns responses as JSON or XML

• Annotate a class with @RestController to define it as a RestController

• Example: @RestController public class UserController {}
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Find the number of occurrences of each element in the given ArrayList

Q1. Discussion with hr like reason to switch.
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Q1. Tell me something about yourself
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Q2. Tell about the recent project that you have worked upon
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Q1. What are your salary expectations?
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Q2. Why are you looking fir change
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Q1. Basics of SQL Basics CMD commands SQL query
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This round consisted of multiple choice questions based on angular and java. I was asked to design a 3X3 grid that should listen to the click event and the selected grid should change the color to green.

Q1. Longest common subsequence of two string
Ans. 
The longest common subsequence of two strings 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 the longest common subsequences.

• Iterate through the characters of both strings and update the array based on the matching characters.

• Trace back the array to find the longest common subsequence
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Q2. Logical questions, questions about my project
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Q1. Why this company, will you be able to relocate to given city
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Q1. Basics are more important with good communication skills
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Calaender based questions

Round duration - 120 minutes
Round difficulty - Medium

Round duration - 120 minutes
Round difficulty - Medium

Q1. 
Rat in a Maze Problem Statement
You need to determine all possible paths for a rat starting at position (0, 0) in a square maze to reach its destination at (N-1, N-1). The maze is represented as an N*N ma...read more
Ans. 
Find all possible paths for a rat in a maze from source to destination.
• Use backtracking to explore all possible paths in the maze.

• Keep track of visited cells to avoid revisiting them.

• Explore all possible directions ('U', 'D', 'L', 'R') from each cell.

• Return the list of valid paths sorted in alphabetical order.
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Q2. 
Word Presence in Sentence
Determine if a given word 'W' is present in the sentence 'S' as a complete word. The word should not merely be a substring of another word.
Input:
The first line contains an in...read more
Ans. 
Check if a given word is present in a sentence as a complete word.
• Split the sentence into words using spaces as delimiter.

• Check if the given word matches any of the words in the sentence.

• Ensure the word is not a substring of another word in the sentence.
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Q1. 
Alien Dictionary Problem Statement
You are provided with a sorted dictionary (by lexical order) in an alien language. Your task is to determine the character order of the alien language from this dictiona...read more
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Q2. 
The Skyline Problem
Compute the skyline of given rectangular buildings in a 2D city, eliminating hidden lines and forming the outer contour of the silhouette when viewed from a distance. Each building is ...read more
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Q3. 
Reverse Words In A String Problem Statement
Given a string of length N, reverse the string word by word. Ensure that the output reversed string has a single space between two words and does not contain le...read more
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Q4. 
Flood Fill Algorithm Task
Assist Ninja in altering the color of a specific region in his photo. Given the image as a 2D array where each pixel is a positive integer, update the color of a specified pixel ...read more
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