Mastering DSA, Java & Spring Boot – From Basics to FAANG & Product-Based Interview Prep

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Java online class

Java & Spring Boot with DSA – From Basics to FAANG Interviews

Course Instructor

Mewa Singh Mewa Singh Author

Week 1: Java OOP + Arrays

Lesson 1.1: Introduction to Java & OOP
Lesson 1 of 5 within section Week 1: Java OOP + Arrays. You must enroll in this course to access course content.
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Lesson 1.2: Classes, Objects, Constructors
Lesson 2 of 5 within section Week 1: Java OOP + Arrays. You must enroll in this course to access course content.
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Lesson 1.3: Encapsulation, Inheritance, Polymorphism, Abstraction
Lesson 3 of 5 within section Week 1: Java OOP + Arrays. You must enroll in this course to access course content.
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Lesson 1.4: Arrays & Basic Problems
Lesson 4 of 5 within section Week 1: Java OOP + Arrays. You must enroll in this course to access course content.
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Practice: LC 1, 121, 217
Lesson 5 of 5 within section Week 1: Java OOP + Arrays. You must enroll in this course to access course content.
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Week 2: Strings & Recursion

Lesson 2.1: String immutability, String methods
Lesson 1 of 5 within section Week 2: Strings & Recursion. You must enroll in this course to access course content.
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Lesson 2.2: StringBuilder vs StringBuffer
Lesson 2 of 5 within section Week 2: Strings & Recursion. You must enroll in this course to access course content.
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Lesson 2.3: Recursion basics (factorial, subsets)
Lesson 3 of 5 within section Week 2: Strings & Recursion. You must enroll in this course to access course content.
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Lesson 2.4: Recursion in strings & arrays
Lesson 4 of 5 within section Week 2: Strings & Recursion. You must enroll in this course to access course content.
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Practice: LC 20, 242, 344, 383
Lesson 5 of 5 within section Week 2: Strings & Recursion. You must enroll in this course to access course content.
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Week 3: Collections & Hashing

Lesson 3.1: Java Collections Framework overview
Lesson 1 of 5 within section Week 3: Collections & Hashing. You must enroll in this course to access course content.
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Lesson 3.2: List, Set, Map deep dive
Lesson 2 of 5 within section Week 3: Collections & Hashing. You must enroll in this course to access course content.
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Lesson 3.3: Generics in Java
Lesson 3 of 5 within section Week 3: Collections & Hashing. You must enroll in this course to access course content.
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Lesson 3.4: HashMap & HashSet problems
Lesson 4 of 5 within section Week 3: Collections & Hashing. You must enroll in this course to access course content.
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Practice: LC 49, 347, 36, 387
Lesson 5 of 5 within section Week 3: Collections & Hashing. You must enroll in this course to access course content.
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Week 4: Exception Handling & Wrap-Up

Lesson 4.1: Checked vs Unchecked exceptions
Lesson 1 of 5 within section Week 4: Exception Handling & Wrap-Up. You must enroll in this course to access course content.
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Lesson 4.2: Try-catch-finally, throw & throws
Lesson 2 of 5 within section Week 4: Exception Handling & Wrap-Up. You must enroll in this course to access course content.
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Lesson 4.3: Custom Exceptions
Lesson 3 of 5 within section Week 4: Exception Handling & Wrap-Up. You must enroll in this course to access course content.
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Lesson 4.4: Arrays + Strings mix problems
Lesson 4 of 5 within section Week 4: Exception Handling & Wrap-Up. You must enroll in this course to access course content.
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Mini Project: Java Console App (Library/Task Manager CLI)
Lesson 5 of 5 within section Week 4: Exception Handling & Wrap-Up. You must enroll in this course to access course content.
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Week 5: Streams & Trees

Lesson 5.1: Streams API intro
Lesson 1 of 4 within section Week 5: Streams & Trees. You must enroll in this course to access course content.
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Lesson 5.2: Functional Interfaces & Lambda expressions
Lesson 2 of 4 within section Week 5: Streams & Trees. You must enroll in this course to access course content.
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Lesson 5.3: Binary Tree traversals (DFS, BFS)
Lesson 3 of 4 within section Week 5: Streams & Trees. You must enroll in this course to access course content.
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Lesson 5.4: Diameter & Height problems
Lesson 4 of 4 within section Week 5: Streams & Trees. You must enroll in this course to access course content.
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Week 6: Multithreading (Intro) + BSTs

Lesson 6.1: Thread & Runnable
Lesson 1 of 4 within section Week 6: Multithreading (Intro) + BSTs. You must enroll in this course to access course content.
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Lesson 6.2: Thread lifecycle & synchronization basics
Lesson 2 of 4 within section Week 6: Multithreading (Intro) + BSTs. You must enroll in this course to access course content.
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Lesson 6.3: BST operations (insert, delete, search)
Lesson 3 of 4 within section Week 6: Multithreading (Intro) + BSTs. You must enroll in this course to access course content.
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Lesson 6.4: Validate BST, Lowest Common Ancestor
Lesson 4 of 4 within section Week 6: Multithreading (Intro) + BSTs. You must enroll in this course to access course content.
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Week 7: Graphs + Spring Boot Setup

Lesson 7.1: Graph representation (Adj list, matrix)
Lesson 1 of 4 within section Week 7: Graphs + Spring Boot Setup. You must enroll in this course to access course content.
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Lesson 7.2: BFS & DFS in graphs
Lesson 2 of 4 within section Week 7: Graphs + Spring Boot Setup. You must enroll in this course to access course content.
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Lesson 7.3: Graph Connected Components
Lesson 3 of 4 within section Week 7: Graphs + Spring Boot Setup. You must enroll in this course to access course content.
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Lesson 7.4: Spring Boot Setup & REST API basics
Lesson 4 of 4 within section Week 7: Graphs + Spring Boot Setup. You must enroll in this course to access course content.
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Week 8: Concurrency + CRUD Project

Lesson 8.1: Thread safety, Locks, synchronized keyword
Lesson 1 of 4 within section Week 8: Concurrency + CRUD Project. You must enroll in this course to access course content.
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Lesson 8.2: Graph Cycle detection (directed/undirected)
Lesson 2 of 4 within section Week 8: Concurrency + CRUD Project. You must enroll in this course to access course content.
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Lesson 8.3: Spring Boot CRUD app with REST endpoints
Lesson 3 of 4 within section Week 8: Concurrency + CRUD Project. You must enroll in this course to access course content.
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Mini Project: CRUD REST API
Lesson 4 of 4 within section Week 8: Concurrency + CRUD Project. You must enroll in this course to access course content.
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Week 9: JDBC + 1D DP

Lesson 9.1: JDBC basics (Connection, Statement, ResultSet)
Lesson 1 of 4 within section Week 9: JDBC + 1D DP. You must enroll in this course to access course content.
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Lesson 9.2: Fibonacci, Climbing Stairs DP
Lesson 2 of 4 within section Week 9: JDBC + 1D DP. You must enroll in this course to access course content.
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Lesson 9.3: House Robber DP
Lesson 3 of 4 within section Week 9: JDBC + 1D DP. You must enroll in this course to access course content.
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Practice: LC 70, 198
Lesson 4 of 4 within section Week 9: JDBC + 1D DP. You must enroll in this course to access course content.
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Week 10: Transactions + 2D DP

Lesson 10.1: JDBC Transactions & Batch processing
Lesson 1 of 4 within section Week 10: Transactions + 2D DP. You must enroll in this course to access course content.
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Lesson 10.2: Unique Paths, Min Path Sum DP
Lesson 2 of 4 within section Week 10: Transactions + 2D DP. You must enroll in this course to access course content.
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Lesson 10.3: Matrix DP problems
Lesson 3 of 4 within section Week 10: Transactions + 2D DP. You must enroll in this course to access course content.
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Practice: LC 62, 64
Lesson 4 of 4 within section Week 10: Transactions + 2D DP. You must enroll in this course to access course content.
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Week 11: File I/O + JPA

Lesson 11.1: File I/O (Reader, Writer, Streams)
Lesson 1 of 5 within section Week 11: File I/O + JPA. You must enroll in this course to access course content.
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Lesson 11.2: Serialization & Deserialization
Lesson 2 of 5 within section Week 11: File I/O + JPA. You must enroll in this course to access course content.
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Lesson 11.3: Spring Boot JPA & Hibernate basics
Lesson 3 of 5 within section Week 11: File I/O + JPA. You must enroll in this course to access course content.
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Lesson 11.4: Edit Distance, Coin Change DP
Lesson 4 of 5 within section Week 11: File I/O + JPA. You must enroll in this course to access course content.
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Practice: LC 72, 322
Lesson 5 of 5 within section Week 11: File I/O + JPA. You must enroll in this course to access course content.
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Week 12: Integration Project

Lesson 12.1: JDBC + Spring Boot DB integration
Lesson 1 of 3 within section Week 12: Integration Project. You must enroll in this course to access course content.
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Lesson 12.2: AtCoder DP basics
Lesson 2 of 3 within section Week 12: Integration Project. You must enroll in this course to access course content.
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Mini Project: Spring Boot DB Integration
Lesson 3 of 3 within section Week 12: Integration Project. You must enroll in this course to access course content.
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Week 13: Executor Framework + LCS/LIS

Lesson 13.1: Executor, Callable, Future
Lesson 1 of 3 within section Week 13: Executor Framework + LCS/LIS. You must enroll in this course to access course content.
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Lesson 13.2: Longest Increasing Subsequence
Lesson 2 of 3 within section Week 13: Executor Framework + LCS/LIS. You must enroll in this course to access course content.
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Lesson 13.3: Longest Common Subsequence
Lesson 3 of 3 within section Week 13: Executor Framework + LCS/LIS. You must enroll in this course to access course content.
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Week 14: Deadlocks + Bitmask DP

Lesson 14.1: Deadlocks & prevention
Lesson 1 of 3 within section Week 14: Deadlocks + Bitmask DP. You must enroll in this course to access course content.
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Lesson 14.2: Producer–Consumer problem
Lesson 2 of 3 within section Week 14: Deadlocks + Bitmask DP. You must enroll in this course to access course content.
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Lesson 14.3: Bitmask DP patterns
Lesson 3 of 3 within section Week 14: Deadlocks + Bitmask DP. You must enroll in this course to access course content.
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Week 15: Advanced Graphs + Thread Pools

Lesson 15.1: Thread Pools, Executors
Lesson 1 of 3 within section Week 15: Advanced Graphs + Thread Pools. You must enroll in this course to access course content.
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Lesson 15.2: Dijkstra’s Algorithm
Lesson 2 of 3 within section Week 15: Advanced Graphs + Thread Pools. You must enroll in this course to access course content.
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Lesson 15.3: Prim’s & Kruskal’s MST
Lesson 3 of 3 within section Week 15: Advanced Graphs + Thread Pools. You must enroll in this course to access course content.
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Week 16: Union-Find + Spring Boot Project

Lesson 16.1: Union-Find & Topological Sort
Lesson 1 of 3 within section Week 16: Union-Find + Spring Boot Project. You must enroll in this course to access course content.
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Lesson 16.2: Java Memory Model (volatile, synchronized)
Lesson 2 of 3 within section Week 16: Union-Find + Spring Boot Project. You must enroll in this course to access course content.
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Project: REST API + DB + Auth
Lesson 3 of 3 within section Week 16: Union-Find + Spring Boot Project. You must enroll in this course to access course content.
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Week 17: Advanced Collections

Lesson 17.1: PriorityQueue, Deque
Lesson 1 of 3 within section Week 17: Advanced Collections. You must enroll in this course to access course content.
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Lesson 17.2: ConcurrentHashMap
Lesson 2 of 3 within section Week 17: Advanced Collections. You must enroll in this course to access course content.
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DSA: Hard problems mix
Lesson 3 of 3 within section Week 17: Advanced Collections. You must enroll in this course to access course content.
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Week 18: Design Patterns I

Lesson 18.1: Singleton
Lesson 1 of 3 within section Week 18: Design Patterns I. You must enroll in this course to access course content.
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Lesson 18.2: Factory
Lesson 2 of 3 within section Week 18: Design Patterns I. You must enroll in this course to access course content.
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Lesson 18.3: Builder
Lesson 3 of 3 within section Week 18: Design Patterns I. You must enroll in this course to access course content.
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Week 19: Design Patterns II + JVM

Lesson 19.1: Observer & Strategy patterns
Lesson 1 of 3 within section Week 19: Design Patterns II + JVM. You must enroll in this course to access course content.
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Lesson 19.2: JVM basics, Garbage Collection
Lesson 2 of 3 within section Week 19: Design Patterns II + JVM. You must enroll in this course to access course content.
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Lesson 19.3: ClassLoader & Memory Management
Lesson 3 of 3 within section Week 19: Design Patterns II + JVM. You must enroll in this course to access course content.
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Week 20: Full Project + Mock Interviews

Lesson 20.1: Spring Boot Security + Testing
Lesson 1 of 3 within section Week 20: Full Project + Mock Interviews. You must enroll in this course to access course content.
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Lesson 20.2: Mock Coding Interview (DSA)
Lesson 2 of 3 within section Week 20: Full Project + Mock Interviews. You must enroll in this course to access course content.
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Lesson 20.3: Mock LLD Interview
Lesson 3 of 3 within section Week 20: Full Project + Mock Interviews. You must enroll in this course to access course content.
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Week 21: System Design Basics + DSA Revision

This section does not have any lessons.

Week 22: LLD with Java + DP Revision

This section does not have any lessons.

Week 23: Contest Prep (Leetcode/Codeforces) + Deployment (Heroku/AWS)

This section does not have any lessons.

Week 24: Final Mock Interviews + Project Showcase + Wrap-up

This section does not have any lessons.

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