DSA using Java Course – LeetCode & Problem Solving

Complete DSA

Learn Data Structures & Algorithms from Basics to Advanced

200+ Problems

Solve LeetCode & interview-oriented coding problems

Deep Data Structures Concepts

Understand Data Structures, their implementation & internal working

Interview Ready

Practice problems asked in service & product companies

Certification

Earn a verified DSA course completion certificate

Curriculum

Course Content

18 Modules

410 Lectures

60+ Hours

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DSA Foundation (Basics of Algorithm)

5 Lectures

DSA Introduction; Types of Data Structures; Use of DSA

Function Expression [ f(n) ] with Examples

Simplified Function Expression (Rules); Growth Function Graph

Asymptotic Notations – Big O, Big Ω, Big Θ

Algorithm Analysis (Time & Space Complexity)

Arrays + Problem Solving Questions

14 Lectures

Array Introduction; Array Memory Concept

Single Dimensional (1D) Array (Declare, Create & Initialize)

Array Operations - Part 1 (Traversal, Insertion, Updation)

Array Operations - Part 2 (Deletion, Searching, Sorting)

Iterative & Brute Force Approach + Logical Problems

Iterative Approach Programs (Part 1)

Iterative Approach Programs (Part 2)

Brute Force Approach Programs (Part 1)

Brute Force Approach Programs (Part 2)

Searching (Binary) & Sorting (Selection, Insertion) Algorithms

Multi-Dimensional (2D) Array (Declaration, Creation, Initialize & Traverse)

Matrix Array; Jagged Array; Anonymous Array

Multi-Dimensional Array Programs

Higher Dimensional Arrays (3D, 4D, 5D ... Array)

Two Pointers Technique + LeetCode Questions

4 Lectures

Two Pointers Technique + Problem Solving Questions

LeetCode Questions (Part 1) - Same Direction

LeetCode Questions (Part 2) - Opposite Direction

LeetCode Questions (Part 3) - Mixed Types

Sliding Window + LeetCode Questions

3 Lectures

Sliding Window introduction + Problem Solving Questions

LeetCode Questions (Part 1) - Fixed Size Sliding Window

LeetCode Questions (Part 2) - Variable Size

Kadane's Algorithm + LeetCode Questions

5 Lectures

Kadane's Algorithm (Part 1) + Problem Solving Questions

Kadane's Algorithm (Part 2) + Problem Solving Questions

LeetCode Questions (Part 1)

Circular Array; LeetCode Questions (Part 2)

LeetCode Questions (Part 3)

Prefix & Suffix Technique + LeetCode Questions

7 Lectures

Prefix & Suffix Technique (Part 1)

XOR (Exclusive OR) + Rules + Logical Questions

Prefix & Suffix Technique (Part 2)

LeetCode Questions (Part 1) - Range Sum Problems

LeetCode Questions (Part 2) - Range Sum Problems 2D Array

LeetCode Questions (Part 3) - Subarray Sum Problems

LeetCode Questions (Part 4)

Infosys Placement Discussion

1 Lecture

Infosys Interview Discussion

Strings + LeetCode Questions

10 Lectures

String Introduction

String Constant Pool (SCP); String Object & Immutability

String Class Constructors & Methods

StringBuffer & StringBuilder Class

String Programs (Part 1)

String Programs (Part 2)

LeetCode Questions (Part 1)

LeetCode Questions (Part 2)

LeetCode Questions (Part 3)

KMP (Knuth-Morris-Pratt) Algorithm

+10 more modules

Infosys Placement Discussion

1 Lecture

Infosys Interview Discussion

Strings + LeetCode Questions

10 Lectures

String Introduction

String Constant Pool (SCP); String Object & Immutability

String Class Constructors & Methods

StringBuffer & StringBuilder Class

String Programs (Part 1)

String Programs (Part 2)

LeetCode Questions (Part 1)

LeetCode Questions (Part 2)

LeetCode Questions (Part 3)

KMP (Knuth-Morris-Pratt) Algorithm

Dynamic Arrays (Array List & Vector) + LeetCode Questions

5 Lectures

Dynamic Array Introduction & Its Working

Dynamic Array Implementation (Part 1)

Dynamic Array Implementation (Part 2)

Dynamic Array (Array List) LeetCode Questions

Vector Introduction

Linked List + LeetCode Questions

13 Lectures

Linked List Introduction

Singly Linked List (SLL) Introduction; SLL Implementation (Part 1)

Singly Linked List (SLL) Implementation (Part 2)

Singly Linked List (SLL) Implementation (Part 3)

Doubly Linked List (DLL) Introduction; DLL Implementation (Part 1)

Doubly Linked List (DLL) Implementation (Part 2)

Circular Singly Linked List (CSLL) Introduction; CSLL Implementation (Part 1)

Circular Singly Linked List (CSLL) Implementation (Part 2)

Circular Doubly Linked List (CDLL) Introduction; CDLL Implementation (Part 1)

Circular Doubly Linked List (CDLL) Implementation (Part 2)

LeetCode Questions (Part 1)

LeetCode Questions (Part 2)

Fast & Slow Pointers Technique + LeetCode Questions

Stack + LeetCode Questions

7 Lectures

Stack Introduction; Stack Implementation in Java Collections

Stack using Arrays

Stack using Array List

Stack using Linked List

LeetCode Questions (Part 1)

LeetCode Questions (Part 2)

Monotonic Stack: LeetCode Questions

Queue + LeetCode Questions

12 Lectures

Queue & Simple Queue Implementation

Circular Queue (Part 1)

Circular Queue (Part 2)

Deque - Part 1 (using Circular Array)

Deque - Part 2 (Task Completed)

Deque - Part 3 (using Doubly Linked List)

Priority Queue - Introduction

Priority Queue - Implementation (Part 1)

Priority Queue - Implementation (Part 2)

LeetCode Questions (Part 1)

LeetCode Questions (Part 2)

LeetCode Questions (Part 3)

Hashing Data Structures + LeetCode Questions

15 Lectures

Map, Entry, HashMap Introduction & Programs

HashMap Task (Billing System) Part 1

HashMap Task (Billing System) Part 2

HashMap Programs - 1

HashMap Programs - 2

HashMap Programs - 3

HashMap Programs - 4

HashMap Programs - 5

Set & HashSet

HashSet Programs

Hashing Terminologies (Hash Code, Hash Value, Hash Function)

hashCode() method Deep Explanation

Hashing technique (Hashing, Compression, Collision Handling)

LeetCode Questions (Part 1)

LeetCode Questions (Part 2)

Recursion + Problem Solving Questions

5 Lectures

Recursion Deep Introduction with Programs

Tail & Non-Tail Recursion (Head & Non-Head) with Programs

Direct & Indirect Recursion with Programs; Dice Coin Game

Linear & Tree Recursion

Recursion Problem Solving Questions

Tree (Binary Tree; BST, AVL Tree) + LeetCode Questions

13 Lectures

Tree Introduction; Binary Tree (BT) Introduction

Binary Tree Implementation (Part 1)

Binary Tree Implementation (Part 2)

Binary Tree Traversal (Inorder, Preorder, Postorder)

Binary Tree Traversal (Level Order)

Min & Max in BST

Lowest Common Ancestor (LCA)

Problem Solving Questions

AVL (Self Balancing Tree) Introduction

AVL Rotations (Left Rotation, Right Rotation, LR & RL Rotation)

AVL Tree Implementation

Rebalancing Process

Problem Solving Questions

Trie + Problem Solving

5 Lectures

Trie Introduction

Prefix Tree

Trie Implementation

Applications of Trie (Auto-complete, Dictionary Search, Prefix Matching)

Problem Solving Questions

Graph + Problem Solving

6 Lectures

Graph Introduction

Types of Graph (Directed, Undirected, Weighted & Unweighted Graph)

Graph Representation (Adjacency Matrix & Adjacency List)

Graph Traversal Techniques (BFS - Breadth First Search & DFS - Depth First Search)

Graph Implementation

Problem Solving Questions

Dynamic Programming + Problem Solving

4 Lectures

DP Introduction

Memoization (Top-Down)

Tabulation (Bottom-Up)

Problem Solving Questions

Success Stories

Our Students Are Placed & Thriving

Real stories from real learners who transformed their careers.

Davinder Kambhoj

Accenture

"I completed the Java course under Sir’s guidance and learned a great deal. In just six months, he taught us so much that I now feel confident I can easily learn any Java-based technology now."

Aryan Bansal

Infosys

"Learning through this course was smooth and interesting. The explanations were clear, and the pace was perfect for understanding. All sessions helped reinforce the concepts effectively."

Rakesh Kumar

Cognizant

"I sincerely thank Deepak Sir and Smart Programming Institute for Core and Advanced Java courses. His clear, practical teaching built my strong foundation, confidence, and helped me get placed in Cognizant. I highly recommend this institute for learning Java."

Aman Kumar Gola

TCS

"I started my Java journey with Smart Programming under Deepak Sir. His clear, practical teaching improved my understanding, built strong foundation, and helped me crack placements in Capgemini, HCL, and TCS."

View All Placed Students

Student Feedback

What Our Students Say

Honest reviews from learners of this DSA using Java Course.

"Thank you sir! Deepak Panwar's DSA course explains every concept step by step with easy examples and coding practice. It helped me build strong problem-solving skills."

Rahul Suryavanshi

"Excellent DSA course! The concepts, coding questions, and interview tips gave me the confidence to solve problems independently."

Priya Garg

"Thank you sir! This DSA course improved my logic building and problem-solving approach. The interview questions were extremely helpful."

Vikas Rai

"The way you explain concepts with practical examples makes learning much easier."

Rashmi Shivay

"I really liked the teaching style. Complex topics are explained in a very simple way."

Karan Mehta

"Very well-designed course with proper progression from basic concepts to advanced topics."

Ankit Raj

"I liked how every problem is explained step by step. It helped me understand the thought process behind solutions."

Shivam Gupta

"Thanks sir for creating such a practical DSA course. It helped me gain confidence in solving coding problems."

Varun Mehta

"A very helpful course for learning DSA using Java. The dry runs and step-by-step coding explanations made difficult concepts easier to understand."

Sahil Kumar

"The explanations of sorting algorithms, searching, and recursion are easy to follow. This course helped me improve my Java coding logic."

Harsh Vardhan

"A useful course for students preparing for placements. I especially liked the detailed explanations of algorithms and their implementations in Java."

Abhishek Yadav

"Good DSA course with Java programs and clear explanations. The topic-wise structure makes it easier to learn and revise concepts systematically."

Rajat Malhotra

"A comprehensive starting point for DSA using Java. The practical examples and gradual progression helped me build confidence in solving coding questions."

Muskan Arora

"One of the best DSA courses I've taken. Every topic is explained clearly with Java implementation, making interview preparation much easier."

Ankit Kaushik

"The structured roadmap and practical coding sessions made learning Data Structures and Algorithms simple and enjoyable. Highly recommended!"

Sneha Singh

"Deepak Panwar's DSA teaching style is simple, practical, and beginner-friendly. A perfect course for coding interviews and placements."

Aman Tyagi

"Before joining this course, DSA was very confusing for me. Now I understand how to approach problems and write better solutions."

Neha Verma

"The best part of this course is learning how to think and approach problems instead of just memorizing solutions."

Pooja Nair

"Excellent teaching methodology. Every concept feels easy because of the detailed explanations."

Deepak Joshi

"This course is perfect for beginners who want to start DSA and prepare for software development interviews."

Priyanka

"The DSA Using Java course is well structured, with clear explanations and practical programs. It helped me understand arrays, linked lists, stacks, queues, and recursion."

Mohit Sharma

"I liked the combination of theory, Java implementation, and problem-solving practice. The course provides a good foundation for coding interviews."

Nitin Bansal

"Deepak sir explains DSA concepts in a beginner-friendly way. The examples helped me understand how different data structures work in Java."

Ritika Sharma

"The course helped me understand time complexity, space complexity, and the importance of choosing the right approach for a coding problem."

Tanya Gupta

"I found the problem-solving approach especially useful. Instead of only learning code, I started understanding the logic behind different solutions."

Pankaj Kumar

Your Mentor

Meet Your Trainer

Learn from an industry expert with real-world experience.

14+

Yrs Experience

1 Lakh+

Students

5★

Rating

Deepak Panwar

Senior Java Developer & AI Integration Expert

I’m Deepak, a Software Engineer with 14+ years of experience in Java and related technologies. I specialize in Core Java, Spring Boot, Hibernate, React and Enterprise Technologies (also Android JavaScript & Python).
In my course, you’ll learn from basics to advanced concepts with real-world examples and projects, ensuring hands-on experience to build industry-ready applications. Let’s code and innovate together! 🚀

Skills & Expertise

Core Java DSA Design Patterns Spring Boot REST APIs Microservices JavaScript React Android Python

3.2 Lakh+ Subscribers on YouTube
26K+ Learners on My Platform
5★ Rated Instructor
Practical Experience with 50+ Projects

Trained 1 Lakh+ Students in Java
Hands-on Training with Live Coding Sessions
14+ Years of Industry Experience
Expert in Java Fundamentals & Problem Solving

Support

Need Any Help?

Our support team is available 6 days a week. We typically respond within minutes.

Average Response Time: 1 Hour to 24 Hours

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FAQs

Frequently Asked Questions

Have questions? We have answers. If you can't find what you're looking for, contact us.

1. What is this DSA course about?

This DSA Using Java Course covers all important Data Structures, Algorithms, Coding Patterns and Problem-Solving techniques required for cracking top IT interviews. It includes theory + dry runs + 100+ practice questions.

2. Who should join this DSA course?

This course is perfect for:

Students preparing for placements
Beginners in DSA
Java learners
Working professionals switching to development
Anyone preparing for coding interviews

3. What will I learn in this course?

You will learn Arrays, Strings, Stack, Queue, LinkedList, Trees, BST, Graphs, Heaps, Hashing, Recursion, Backtracking, Dynamic Programming, Sliding Window, Two Pointers, Greedy, and more.

4. Do I need coding experience before joining this course?

No. This course is made for beginners as well as intermediate learners. Basic Java concepts are explained whenever needed.

5. How many coding questions are included?

You will practice 200+ problem-solving questions, including

LeetCode
Company-specific coding questions
Pattern-based questions for interviews

6. Will this course help with placement preparation?

Yes. The course includes:

Interview patterns
Problem-solving strategy
Dry-run approach
Complexity analysis
Resume guidance
Mock interviews (if required)

7. Will I get notes and source code?

Yes. You get:

Downloadable notes
Topic-wise code files
Assignments for practice

8. Is there a certificate after completion?

Yes, after completing the course, you will receive an official course completion ISO certificate.

9. Can I interact with the instructor for doubts?

Yes. You can contact the instructor directly via WhatsApp or call for doubt resolution.

10. What is the duration of this DSA course?

If you study regularly (2–3 hrs/day), the course takes 3 months.
If you study only on weekends, it may take 4–5 months.

DSA using Java (LeetCode + Problem Solving)

DSA using Java

Course Content

Our Students Are Placed & Thriving

Companies Our Students Target

What Our Students Say

Meet Your Trainer

Deepak Panwar

Skills & Expertise

Get ISO Based Certificate

Need Any Help?

WhatsApp Us

Call Now

Email Support

Frequently Asked Questions

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