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CodeSignal

Concurrent Collections in Action

via CodeSignal

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Overview

This practice-based course builds on concepts from "Synchronized and Concurrent Collections in Java." It includes real-world tasks centered on using concurrent collections, advanced synchronization techniques, and efficient data-sharing methods. Each unit presents practical scenarios where you'll tackle concurrency challenges and strengthen your skills.

Syllabus

  • Unit 1: Implementing a Concurrent Inventory System Using ConcurrentHashMap
    • Exploring Concurrent Inventory Systems
    • Apply Discount in Concurrent Inventory
    • Automatic Inventory Reorder System
    • Managing Inventory with Expiration Dates
    • Concurrent Shopping Cart with Inventory
  • Unit 2: Designing a Thread-Safe Game Leaderboard Using ConcurrentSkipListMap
    • Run the Thread-Safe Leaderboard
    • Invert Leaderboard Ranking Criteria
    • Extend the Leaderboard with remove
    • Find Player Scores in Leaderboard
    • Build a Traffic Congestion Tracker
  • Unit 3: Creating a Thread-Safe Channel with CopyOnWriteArrayList
    • Thread-Safe Messaging with Threads
    • Message Ordering in the Channel
    • Preventing Duplicate Messages
    • Clear All Messages
    • Real-Time Stock Price Monitor
  • Unit 4: Building a Producer-Consumer System with BlockingQueue
    • Observe Producer-Consumer in Action
    • Debug the Producer-Consumer Pattern
    • Integrating Priority with Producer-Consumer
    • Write a Consumer that Aggregates and Summarizes Data
    • Producer Consumer Pattern with Stock Prices
  • Unit 5: Implementing a Thread-Safe Configuration Manager with ReentrantReadWriteLock
    • Concurrency in Configuration Management
    • Handling Missing Configuration Values
    • Adding Property Check Functionality
    • Fixing Lock Issues in Configuration Management
    • Creating a Read-Only Config Manager

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