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Fincart Java Backend Developer Interview Experience

Java Backend Developer

Fincart

August 19, 2026

29 Questions

Selected

Summary

AI Powered

The interview process at Fincart consisted of five distinct rounds covering Java Core, Java Collections, Spring Boot, DSA/Coding, and SQL. Candidates were evaluated deeply on core Java 8 features, design patterns like Singleton, multithreading collections, Spring bean scopes, and basic relational querying along with two-sum variations. Overall, the interview had an easy-to-medium difficulty level focused primarily on strong backend fundamentals.

Round 1 (Java Core)

#1Self Introduction

Easy

Behavioral

Introduction

Tell me about yourself.

Self Introduction

Tell me about yourself.

Behavioral

Introduction

Easy

#2Day-to-day Responsibilities

Easy

Work Experience

Roles & Responsibilities

What are your day-to-day responsibilities in your current role?

Day-to-day Responsibilities

What are your day-to-day responsibilities in your current role?

Work Experience

Roles & Responsibilities

Easy

#3HLD and LLD Experience

Medium

System Design

LLD

HLD

Have you worked on High-Level Design (HLD) and Low-Level Design (LLD)?

HLD and LLD Experience

Have you worked on High-Level Design (HLD) and Low-Level Design (LLD)?

System Design

LLD

HLD

Medium

#4Current Java Version

Easy

Java

Project Experience

Which version of Java are you using in your current project?

Current Java Version

Which version of Java are you using in your current project?

Java

Project Experience

Easy

#5Java 8 Major Features

Easy

Java 8

Core Java

What are the major features introduced in Java 8?

Java 8 Major Features

What are the major features introduced in Java 8?

Java 8

Core Java

Easy

#6Purpose of Functional Interfaces

Easy

Java 8

Functional Interface

Why do we use Functional Interfaces in Java?

Purpose of Functional Interfaces

Why do we use Functional Interfaces in Java?

Java 8

Functional Interface

Easy

#7Purpose of Default Methods in Interfaces

Easy

Interfaces

Java 8

Default Methods

What is the purpose of Default Methods in interfaces?

Purpose of Default Methods in Interfaces

What is the purpose of Default Methods in interfaces?

Interfaces

Java 8

Default Methods

Easy

#8Purpose of Static Methods in Interfaces

Easy

Interfaces

Java 8

Static Methods

What is the purpose of Static Methods in interfaces?

Purpose of Static Methods in Interfaces

What is the purpose of Static Methods in interfaces?

Interfaces

Java 8

Static Methods

Easy

#9Real-time Use Case of Default Methods

Medium

Java 8

Default Methods

Explain a real-time use case of Default Methods in Java.

Real-time Use Case of Default Methods

Explain a real-time use case of Default Methods in Java.

Java 8

Default Methods

Medium

#10Real-time Use Case of Static Methods in Interfaces

Medium

Java 8

Static Methods

Explain a real-time use case of Static Methods in interfaces.

#10

Real-time Use Case of Static Methods in Interfaces

Explain a real-time use case of Static Methods in interfaces.

Java 8

Static Methods

Medium

#11Difference Between Default and Static Methods

Easy

Interfaces

Java 8

What is the difference between Default Methods and Static Methods in interfaces?

#11

Difference Between Default and Static Methods

What is the difference between Default Methods and Static Methods in interfaces?

Interfaces

Java 8

Easy

#12Private Classes in Java

Medium

Java

Core Java

Access Modifiers

Can we make a class private? Why or why not?

#12

Private Classes in Java

Can we make a class private? Why or why not?

Java

Core Java

Access Modifiers

Medium

#13Purpose of Private Methods

Easy

Java

Encapsulation

OOP

Why do we make methods private in Java?

#13

Purpose of Private Methods

Why do we make methods private in Java?

Java

Encapsulation

OOP

Easy

#14Purpose of Private Constructor

Easy

Java

Design Patterns

Constructors

Why do we use a private constructor?

#14

Purpose of Private Constructor

Why do we use a private constructor?

Java

Design Patterns

Constructors

Easy

#15Static Classes in Java

Easy

Java

Static Keyword

Nested Classes

Can we make a class static in Java?

#15

Static Classes in Java

Can we make a class static in Java?

Java

Static Keyword

Nested Classes

Easy

#16Calling a Static Nested Class

Easy

Java

Nested Classes

How do you instantiate or call a static nested class?

#16

Calling a Static Nested Class

How do you instantiate or call a static nested class?

Java

Nested Classes

Easy

#17Calling a Non-static Inner Class

Easy

Java

Inner Classes

How do you instantiate or call a non-static inner class?

#17

Calling a Non-static Inner Class

How do you instantiate or call a non-static inner class?

Java

Inner Classes

Easy

#18Implement Singleton Class

Medium

Java

Design Patterns

Singleton

Write the implementation of a Singleton class.

#18

Implement Singleton Class

Write the implementation of a Singleton class.

Java

Design Patterns

Singleton

Medium

#19Singleton Object Uniqueness

Medium

Java

Design Patterns

Singleton

How does the Singleton design pattern ensure only one object is created?

#19

Singleton Object Uniqueness

How does the Singleton design pattern ensure only one object is created?

Java

Design Patterns

Singleton

Medium

Round 2 (Java Collections)

#1Why ConcurrentHashMap

Medium

Multithreading

Collections

ConcurrentHashMap

Why do we use ConcurrentHashMap in Java?

Why ConcurrentHashMap

Why do we use ConcurrentHashMap in Java?

Multithreading

Collections

ConcurrentHashMap

Medium

#2ConcurrentHashMap vs HashMap

Medium

Collections

ConcurrentHashMap

HashMap

How is ConcurrentHashMap different from HashMap?

ConcurrentHashMap vs HashMap

How is ConcurrentHashMap different from HashMap?

Collections

ConcurrentHashMap

HashMap

Medium

#3Real-time Use Case of ConcurrentHashMap

Medium

Java

Project Experience

ConcurrentHashMap

Where have you used ConcurrentHashMap in your project?

Real-time Use Case of ConcurrentHashMap

Where have you used ConcurrentHashMap in your project?

Java

Project Experience

ConcurrentHashMap

Medium

Round 3 (Spring Boot)

#1Read Values from application.properties

Easy

Spring Boot

Configuration

@Value

How do you read values from application.properties in Spring Boot?

Read Values from application.properties

How do you read values from application.properties in Spring Boot?

Spring Boot

Configuration

@Value

Easy

#2Spring Bean Scopes

Easy

Spring Boot

Spring

Bean Scopes

What are the different Bean Scopes available in Spring?

Spring Bean Scopes

What are the different Bean Scopes available in Spring?

Spring Boot

Spring

Bean Scopes

Easy

#3Preferred Bean Scope

Medium

Spring

Bean Scopes

Which Bean Scope is preferred and why?

Preferred Bean Scope

Which Bean Scope is preferred and why?

Spring

Bean Scopes

Medium

#4Purpose of Prototype Scope

Easy

Spring

Bean Scopes

Prototype Scope

What is the purpose of the Prototype bean scope in Spring?

Purpose of Prototype Scope

What is the purpose of the Prototype bean scope in Spring?

Spring

Bean Scopes

Prototype Scope

Easy

#5Singleton Bean Scope Recommendation

Easy

Spring

Bean Scopes

Singleton Scope

Is Singleton the recommended Bean Scope in Spring? Explain why.

Singleton Bean Scope Recommendation

Is Singleton the recommended Bean Scope in Spring? Explain why.

Spring

Bean Scopes

Singleton Scope

Easy

Round 4 (Coding)

#1Find Pairs with Sum 10 Without Element Reuse

Medium

Algorithms

Arrays

Two Sum

Given a list of integers, find all unique pairs whose sum is equal to 10. Once an element is used in a pair, it cannot be reused. Optimize your solution for time and space complexity.

Find Pairs with Sum 10 Without Element Reuse

Given a list of integers, find all unique pairs whose sum is equal to 10. Once an element is used in a pair, it cannot be reused. Optimize your solution for time and space complexity.

Algorithms

Arrays

Two Sum

Medium

Round 5 (SQL)

#1Find Employees Earning More Than Their Manager

Easy

Database

SQL

Self Join

Given an `Employee` table with schema `(emp_id, emp_name, salary, manager_id)`, write an SQL query to find employees whose salary is greater than their manager's salary.

Find Employees Earning More Than Their Manager

Given an `Employee` table with schema `(emp_id, emp_name, salary, manager_id)`, write an SQL query to find employees whose salary is greater than their manager's salary.

Database

SQL

Self Join

Easy

Java Coding Spring Boot Java 8 SQL Fincart

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