Advance Programming In Java | 4. Java Collections Framework (Advanced by Abraham | Learn Smarter
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4. Java Collections Framework (Advanced

The Java Collections Framework (JCF) provides essential tools for managing groups of objects, enhancing their performance, maintainability, and scalability. Advanced concepts such as synchronization, immutability, and stream operations enable developers to create high-performance applications. Understanding the internal workings and features of collections, like custom sorting and concurrent collections, greatly enhances programming efficiency in enterprise environments.

Sections

  • 4

    Java Collections Framework (Advanced Usage)

    This section explores advanced concepts in the Java Collections Framework, enhancing application performance and maintainability.

    Learning Practice

  • 4.1

    Deep Dive Into Collection Interfaces

    This section explores the various collection interfaces in Java, emphasizing their internal implementations and differences.

    Learning Practice

  • 4.1.1

    Collection Hierarchy Recap

    This section outlines the foundational classes within the Java Collections Framework, categorizing them into Lists, Sets, Queues, and Maps.

    Learning Practice

  • 4.1.2

    Internal Implementation Insights

    This section provides a comprehensive overview of the internal implementations of key collection classes in the Java Collections Framework.

    Learning Practice

  • 4.2

    Advanced List And Set Manipulations

    This section explores advanced techniques for manipulating lists and sets in Java, focusing on custom sorting and collection synchronizations.

    Learning Practice

  • 4.2.1

    Custom Sorting With Comparator And Comparable

    This section covers how to utilize the Comparator and Comparable interfaces for custom sorting in Java collections.

    Learning Practice

  • 4.2.2

    Unmodifiable And Synchronized Collections

    This section covers unmodifiable and synchronized collections in Java, focusing on their importance for thread safety and immutability.

    Learning Practice

  • 4.3

    Working With Maps – Beyond The Basics

    This section explores advanced features of Maps in the Java Collections Framework, particularly the TreeMap and its navigable capabilities.

    Learning Practice

  • 4.3.1

    Treemap And Navigablemap

    TreeMap is a key-value pair collection that maintains order through a Red-Black Tree implementation, while NavigableMap provides navigation methods for range queries and sorted views.

    Learning Practice

  • 4.3.2

    Hashmap Vs Linkedhashmap Vs Treemap

    This section differentiates between HashMap, LinkedHashMap, and TreeMap, highlighting their characteristics relating to order, performance, and usage of null keys.

    Learning Practice

  • 4.4

    Iteration And Bulk Operations

    This section discusses iteration techniques and bulk operations in Java collections, focusing on enhanced iterators and various operations such as forEach, removeIf, and replaceAll.

    Learning Practice

  • 4.4.1

    Enhanced Iterators

    Enhanced Iterators in Java provide advanced ways to iterate and manipulate collections more effectively than traditional iterators.

    Learning Practice

  • 4.4.2

    Foreach, Removeif, Replaceall

    This section explains advanced list operations in Java, specifically using the methods forEach, removeIf, and replaceAll to enhance efficiency.

    Learning Practice

  • 4.5

    Generics And Wildcards In Collections

    This section covers the implementation of generics and wildcards in Java collections, focusing on their flexibility and type safety.

    Learning Practice

  • 4.5.1

    Bounded Wildcards

    Bounded wildcards in Java collections provide flexibility and type safety by allowing developers to specify upper or lower bounds for generic types used in methods.

    Learning Practice

  • 4.5.2

    Type Erasure

    Type erasure is a Java mechanism that removes generic type information at compile time to ensure compatibility with legacy code.

    Learning Practice

  • 4.6

    Concurrent Collections

    This section explores Java's concurrent collections, highlighting key classes like ConcurrentHashMap and CopyOnWriteArrayList designed for thread-safe operations.

    Learning Practice

  • 4.6.1

    Concurrenthashmap

    ConcurrentHashMap is a thread-safe Map designed for high concurrency and performance, allowing multiple threads to read and write data efficiently.

    Learning Practice

  • 4.6.2

    Copyonwritearraylist

    CopyOnWriteArrayList is a thread-safe collection designed for scenarios with frequent reads and rare writes.

    Learning Practice

  • 4.7

    Stream Api And Collections

    This section discusses the Stream API in Java, focusing on how it can be used to perform operations on Collections efficiently and declaratively.

    Learning Practice

  • 4.7.1

    Collectors

    The section covers Java's Stream API, specifically focusing on Collectors, which allow for efficient aggregation and processing of data from streams.

    Learning Practice

  • 4.7.2

    Grouping And Partitioning

    This section discusses the grouping and partitioning of collections in Java using the Stream API, specifically through the Collectors class.

    Learning Practice

  • 4.8

    Best Practices And Performance Tips

    This section outlines best practices and performance tips for utilizing the Java Collections Framework effectively.

    Learning Practice

  • 4.5

    Summary

    This section encapsulates the key points of the Java Collections Framework's advanced features and their significance.

    Learning Practice

References

AJP ch4.pdf

Class Notes

Memorization

What we have learnt

  • Java Collections are divide...
  • Advanced features like sync...
  • Utilizing comparators and g...

Final Test

Revision Tests