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Java & OOP
Master java-oriented patterns: inheritance, polymorphism, interfaces, and JVM execution.
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Coding Labs
[Java & OOP] Binary Search Implementation
Easy
💻 Coding
[Java & OOP] Climbing Stairs DP
Easy
💻 Coding
[Java & OOP] Two Sum Pattern
Easy
💻 Coding
[Java & OOP] Valid Parentheses Check
Easy
💻 Coding
[Java & OOP] Find Minimum in Rotated Sorted Array
Medium
💻 Coding
[Java & OOP] Kth Largest Element in an Array
Medium
💻 Coding
[Java & OOP] Longest Substring Without Repeating Chars
Medium
💻 Coding
[Java & OOP] Maximum Subarray Kadanes
Medium
💻 Coding
[Java & OOP] Merge Intervals
Medium
💻 Coding
[Java & OOP] Reverse Linked List
Medium
💻 Coding
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Technical Core
[Java & OOP] Design Concept validation
Easy
💼 Technical
[Java & OOP] Horizontal vs Vertical Scaling
Easy
💼 Technical
[Java & OOP] ACID Properties definition
Medium
💼 Technical
[Java & OOP] Load Balancer routing
Medium
💼 Technical
[Java & OOP] REST vs GraphQL APIs
Medium
💼 Technical
[Java & OOP] Reconciliation event loop
Medium
💼 Technical
[Java & OOP] Virtual memory paging
Medium
💼 Technical
[Java & OOP] Cache Invalidation strategies
Hard
💼 Technical
[Java & OOP] OAuth2 Authentication flow
Hard
💼 Technical
[Java & OOP] SQL Indexing performance
Hard
💼 Technical
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Behavioral
[Java & OOP] Adapting to New Tech Stacks
Easy
👤 Behavioral
[Java & OOP] Delivering Constructive Feedback
Easy
👤 Behavioral
[Java & OOP] Handling Workplace Conflict
Easy
👤 Behavioral
[Java & OOP] Why Should We Hire You?
Easy
👤 Behavioral
[Java & OOP] Managing Project Scope Creep
Medium
👤 Behavioral
[Java & OOP] Mentoring a Junior Developer
Medium
👤 Behavioral
[Java & OOP] Overcoming Technical Failure
Medium
👤 Behavioral
[Java & OOP] Prioritizing Under Tight Deadlines
Medium
👤 Behavioral
[Java & OOP] Disagreeing with Tech Lead Decisions
Hard
👤 Behavioral
[Java & OOP] Navigating Project Ambiguity
Hard
👤 Behavioral