Sliding Window Technique in Java | Max Subarray + Real Website Visitors Example | DSA Placement

Published: 23 October 2025
on channel: Smart Programming

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📌 Sliding Window Technique in Java | DSA Interview Preparation

In this video, you will learn the Sliding Window Technique from scratch with simple logic and real examples. We will solve two important problems:
✅ Count total website visitors in the last 3 days
✅ Maximum Sum Subarray (Fixed Size Window)

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These questions are frequently asked in coding interviews and competitive programming. This video is perfect for beginners preparing for Java DSA, LeetCode patterns, placement interviews, and product-based companies.

🔍 What you will learn in this video:
• What is Sliding Window Technique
• Fixed Size Sliding Window
• Why and when to use sliding window
• Java implementation with step-by-step explanation
• Best interview questions on subarrays

🎯 Topics Covered in This Video:
• Sliding Window in Java
• Data Structures and Algorithms for placements
• Max Subarray Sum problem
• Real world example: Website visitors counter
• Important subarray interview questions
• DSA Sliding Window pattern
• Coding interview preparation

📝 Related Topics (Short Titles Reference):
• Sliding Window Technique DSA
• Fixed and Variable Window Basics
• Java Subarray Problems
• Coding Interview Sliding Window Pattern

⏱️ Chapters:
00:00 Introduction
00:24 What is Sliding Window Technique?
00:56 Real World Example (Website Visitors) of Sliding Window
04:20 Website Visitors Example
18:50 Maximum Sum Subarray
21:38 DSA Notes

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