Insertion Sort Algorithm in Java | Theory + Code + Interview Questions | DSA Tutorial

Published: 22 August 2025
on channel: Smart Programming

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In this video, we will learn Insertion Sort in Java step by step with algorithm, dry run, code implementation, and important interview questions.

🔹 Topics covered:
✅ What is Insertion Sort Algorithm?
✅ How Insertion Sort works in Java (step by step explanation)
✅ Dry Run of Insertion Sort with examples
✅ Complete Java Program for Insertion Sort
✅ Time Complexity & Space Complexity (Best, Average & Worst case)
✅ Common Interview Questions on Insertion Sort
✅ Comparison of Insertion Sort with Bubble Sort & Selection Sort

💡 Whether you are preparing for Java placement interviews, coding exams, or learning DSA, this tutorial will help you understand insertion sort completely.

💡 This video is part of the Java and DSA Foundation Course and will give you a strong base in sorting algorithms.

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⏱️ Timestamps / Video Chapters:
00:00 - Introduction
00:31 - Insertion Sort Algorithm | Theory Logic
03:39 - Insertion Sort Algorithm in Java Program
10:27 - Insertion Sort Dry Run
15:57 - Insertion Sort Program in Java
19:00 - Sort String Array using Insertion Sort
20:57 - Interview Questions on Insertion Sort (Placement Course)
21:11 - Time Complexity of Insertion Sort
27:04 - Space Complexity of Insertion Sort
27:52 - Insertion Sort Stable & Adaptive
32:05 - Which is Better - Bubble, Selection or Insertion Sort

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