Decode the Coding Interview in Java: Real-World Examples

Module 1: Java Foundations & Problem Solving

⏳ 1 week

• Topics: Java syntax refresher, collections framework, complexity analysis

• Hands-on: Implement basic algorithms (sorting, searching) and analyze their performance

Module 2: Arrays & Strings

⏳ 1 week

• Topics: Two-pointer, sliding window, frequency counting

• Hands-on: Solve “Longest Substring Without Repeating Characters” and “Array Pair Sum” problems

Module 3: Linked Lists & Stacks/Queues

⏳ 1 week

• Topics: Singly/doubly linked lists, stack/queue operations using Deque

• Hands-on: Implement “Reverse Linked List” and “Valid Parentheses” in Java

Module 4: Trees & Graphs

⏳ 1 week

• Topics: Binary tree traversals, BST operations, BFS/DFS on graphs

• Hands-on: Code “Lowest Common Ancestor” and “Graph Cycle Detection”

Module 5: Recursion & Backtracking

⏳ 1 week

• Topics: Recursive patterns, call stack, pruning, backtracking techniques

• Hands-on: Tackle “N-Queens” and “Permutations” with Java recursion

Module 6: Dynamic Programming & Greedy

⏳ 1 week

• Topics: Memoization vs. tabulation, greedy strategy patterns

• Hands-on: Solve “Coin Change” and “Longest Increasing Subsequence”

Module 7: Mock Interviews & Optimization

⏳ 1 week

• Topics: Interview etiquette, code optimization, space/time trade-offs

• Hands-on: Conduct timed mock interviews with real Java questions

Module 8: Capstone Challenge

⏳ 1 week

• Topics: End-to-end interview simulation, system design primer

• Hands-on: Complete a full-length, multi-problem coding interview in Java

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