KPMG Interview Experience for Java Developer 4+ Years

I applied through online portals in August 2024, and this assessment typically includes three questions: two focused on Java Object-Oriented Programming (OOP) and one on SQL. Here’s a detailed guide to help you prepare effectively.

Round 1: Online Assessment Overview

Assessment Format:

• Total Questions: 3
  • 2 Java OOP Questions
  • 1 SQL Question
• Difficulty Level: Easy to Medium

Java OOP Questions

1. Building and Facility Interfaces
   • Task: You need to create an interface called Building and implement it in two classes: School and Hospital.
2. Sport Interface
   • Task: Create an interface named Sport and implement it in two classes: Cricket and Football.

SQL Question: Joins

• Task: Write an SQL query that involves joining three tables: employee, department, and salary.

Requirements:

Tables:

• employee: employee_id, department_id, name
• department: department_id, department_name
• salary: employee_id, amount

Tips for Preparation

Practice Coding:

• Work on similar Java OOP scenarios to get comfortable with inheritance, interfaces, and method implementation.

Solve SQL Queries:

• Practice SQL queries involving joins and other operations to build proficiency.

Understand Core Concepts:

• Ensure a strong grasp of OOP principles like inheritance, encapsulation, and polymorphism.
• Familiarize yourself with SQL operations and how to use them to extract and manipulate data.

By following this guide, you'll be well-prepared to tackle the online assessment and make a strong impression on your path to becoming a Java Developer at KPMG.