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Collection Framework in Java

Introduction

This project showcases the extensive usage of the Java Collection Framework, which provides a unified architecture for representing and manipulating collections. It includes examples of various data structures such as lists, sets, and maps, along with advanced features like concurrent collections and custom implementations.

Features

  • Detailed examples of List, Set, and Map implementations.
  • Demonstrations of Java 8 Stream API, including intermediate and terminal operations, lazy evaluation, and parallel streams.
  • Examples of concurrent collections such as ConcurrentHashMap, CopyOnWriteArrayList, ConcurrentLinkedQueue, and BlockingQueue.
  • Custom implementations like an LRU Cache.
  • Usage of specialized collections like IdentityHashMap, WeakHashMap, EnumMap, and ImmutableMap.
  • Insights into Java features like garbage collection, hashCode and equals methods, and more.

Project Structure

CollectionFramework/
├── src/
│   ├── StreamsEx/
│   │   ├── CollectorsEx.java          # Examples of Collectors in Streams
│   │   ├── IntermediateOps.java       # Demonstrates intermediate operations in Streams
│   │   ├── Java8Intro.java            # Features of Java 8
│   │   ├── LazyEvaluationEx.java      # Explains lazy evaluation in Streams
│   │   ├── ParallelStreamsEx.java     # Examples of parallel stream processing
│   │   ├── PrimitiveStreamsEx.java    # Usage of primitive streams like IntStream
│   │   ├── StreamJavaEx.java          # General Stream API examples
│   │   ├── TerminalOps.java           # Demonstrates terminal operations in Streams
│   │
│   ├── ArrayListEx.java               # Examples of ArrayList usage
│   ├── BlockingQueueEx.java           # Examples of BlockingQueue
│   ├── ComparableEx.java              # Demonstrates Comparable interface
│   ├── ConcurrentHashMapEx.java       # Examples of ConcurrentHashMap
│   ├── ConcurrentLinkedDequeEx.java   # Examples of ConcurrentLinkedDeque
│   ├── ConcurrentLinkedQueueEx.java   # Examples of ConcurrentLinkedQueue
│   ├── ConcurrentSkipListMapEx.java   # Examples of ConcurrentSkipListMap
│   ├── CopyOnWriteArrayListEx.java    # Examples of CopyOnWriteArrayList
│   ├── CopyOnWriteArraySetEx.java     # Examples of CopyOnWriteArraySet
│   ├── DelayQueueEx.java              # Examples of DelayQueue
│   ├── DequeEx.java                   # Examples of Deque
│   ├── EnumMapEx.java                 # Examples of EnumMap
│   ├── GarbageCollectorEx.java        # Demonstrates garbage collection behavior
│   ├── HashCodeAndEqualsMethodEx.java # Demonstrates hashCode and equals() methods
│   ├── HashEx.java                    # Example of Hash
│   ├── HashMapEx.java                 # Examples of HashMap usage
│   ├── HashTableEx.java               # Examples of Hashtable
│   ├── IdentityHashMapEx.java         # Examples of IdentityHashMap
│   ├── ImmutableMapEx.java            # Examples of immutable maps
│   ├── IteratorEx.java                # Demonstrates Iterator usage
│   ├── LinkedHashMapEx.java           # Examples of LinkedHashMap
│   ├── LinkedListEx.java              # Examples of LinkedList usage
│   ├── LRUCache.java                  # Custom implementation of LRU Cache
│   ├── PriorityQueueEx.java           # Examples of PriorityQueue
│   ├── QueueEx.java                   # Examples of Queue interface
│   ├── SetEx.java                     # Examples of Set interface
│   ├── SortedMapEx.java               # Examples of SortedMap
│   ├── StackEx.java                   # Examples of Stack usage
│   ├── SynchronousQueueEx.java        # Examples of SynchronousQueue
│   ├── VectorEx.java                  # Examples of Vector usage
│   ├── WeakHashMapEx.java             # Examples of WeakHashMap
│
├── .gitignore                         # Git ignore file
└── README.md                          # Project documentation

Requirements

  • Java Development Kit (JDK) 8 or higher.
  • An IDE or text editor of your choice.

Installation

  1. Clone the repository: 
    git clone https://github.com/yourusername/CollectionFramework.git
  2. Navigate to the project directory: 
    cd CollectionFramework

Usage

  1. Open the project in your IDE.
  2. Compile the Java files: 
    javac -d bin src/**/*.java
  3. Run the desired example class: 
    java -cp bin com.example.collectionframework.<ClassName>

Replace <ClassName> with the specific class you want to execute.

Contributing

Contributions are welcome! Please fork the repository, make your changes, and submit a pull request.

Contact

For any questions or feedback, please contact JohnSunny.