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Blog by Rahul Mittal

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Command Design Pattern in Java: Encapsulating Requests as Objects
  • java
  • programming
  • spring

Command Design Pattern in Java: Encapsulating Requests as Objects

  • Rahul Mittal
  • June 14, 2026
  • 6 min read

Description / Meta Description Learn the Command Design Pattern in Java with practical examples. Understand how Command encapsulates requests as objects, enables undo operations, task scheduling, workflow execution, and decouples…

Observer Design Pattern in Java: Building Event-Driven Systems Through Publish-Subscribe Communication
  • java
  • programming
  • spring

Observer Design Pattern in Java: Building Event-Driven Systems Through Publish-Subscribe Communication

  • Rahul Mittal
  • June 14, 2026
  • 6 min read

Description / Meta Description Learn the Observer Design Pattern in Java with practical examples. Understand how Observer enables publish-subscribe communication, event-driven architectures, loose coupling, and real-time notifications. Discover real-world applications…

Strategy Design Pattern in Java: Selecting Algorithms Dynamically at Runtime
  • java
  • programming
  • spring

Strategy Design Pattern in Java: Selecting Algorithms Dynamically at Runtime

  • Rahul Mittal
  • June 14, 2026
  • 6 min read

Description / Meta Description Learn the Strategy Design Pattern in Java with practical examples. Understand how Strategy eliminates complex if-else chains, enables dynamic behavior selection, improves extensibility, and powers real-world…

Here’s the completed blog post that transitions from the Behavioral Patterns overview into the first and most important Behavioral Pattern: Strategy Pattern.
  • java
  • programming
  • spring

Here’s the completed blog post that transitions from the Behavioral Patterns overview into the first and most important Behavioral Pattern: Strategy Pattern.

  • Rahul Mittal
  • June 14, 2026
  • 4 min read

Behavioral Design Patterns in Java: Understanding How Objects Communicate and Collaborate Description / Meta Description Before diving into individual Behavioral Design Patterns, understand what problems they solve, why they matter…

Flyweight Design Pattern in Java: Reducing Memory Usage by Sharing Common Object State
  • java
  • programming
  • spring

Flyweight Design Pattern in Java: Reducing Memory Usage by Sharing Common Object State

  • Rahul Mittal
  • June 14, 2026
  • 5 min read

Description / Meta Description Learn the Flyweight Design Pattern in Java with practical examples. Understand how Flyweight reduces memory consumption by sharing common object state, improves scalability, and powers systems…

Bridge Design Pattern in Java: Decoupling Abstraction from Implementation So Both Can Evolve Independently
  • java
  • programming

Bridge Design Pattern in Java: Decoupling Abstraction from Implementation So Both Can Evolve Independently

  • Rahul Mittal
  • June 14, 2026
  • 5 min read

Description / Meta Description Learn the Bridge Design Pattern in Java with practical examples. Understand how Bridge separates abstraction from implementation, prevents class explosion, and helps systems evolve independently. Discover…

Composite Design Pattern in Java: Treating Individual Objects and Groups of Objects Uniformly
  • java
  • programming
  • spring

Composite Design Pattern in Java: Treating Individual Objects and Groups of Objects Uniformly

  • Rahul Mittal
  • June 14, 2026
  • 5 min read

Description / Meta Description Learn the Composite Design Pattern in Java with practical examples. Understand how Composite allows you to treat individual objects and groups of objects uniformly. Discover real-world…

Proxy Design Pattern in Java: Controlling Access to Objects Without Changing Their Behavior
  • java
  • programming

Proxy Design Pattern in Java: Controlling Access to Objects Without Changing Their Behavior

  • Rahul Mittal
  • June 14, 2026
  • 6 min read

Description / Meta Description Learn the Proxy Design Pattern in Java with practical examples. Understand how Proxy controls access to objects, enables lazy loading, caching, security, remote calls, and how…

Facade Design Pattern in Java: Simplifying Complex Systems Behind a Single Interface
  • java
  • programming

Facade Design Pattern in Java: Simplifying Complex Systems Behind a Single Interface

  • Rahul Mittal
  • June 14, 2026
  • 5 min read

Description / Meta Description Learn the Facade Design Pattern in Java with practical examples. Understand how Facade simplifies complex subsystems, reduces coupling, improves maintainability, and why frameworks like Spring's JdbcTemplate,…

Decorator Design Pattern in Java: Adding New Behavior Without Modifying Existing Code
  • java
  • programming

Decorator Design Pattern in Java: Adding New Behavior Without Modifying Existing Code

  • Rahul Mittal
  • June 14, 2026
  • 5 min read

Description / Meta Description Learn the Decorator Design Pattern in Java with practical examples. Understand how to add functionality dynamically without modifying existing classes. Discover real-world examples from Java I/O,…

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Part 42: The Java 8 → Java 21 Journey – Building Modern Enterprise Microservices and Looking Ahead to Java 26

  • Rahul Mittal
  • July 4, 2026
  • 6 min read
  • 0
  • java
  • JavaEvolutionSeries
  • programming

Part 37: Java 21 – Virtual Threads – Revolutionizing Spring Boot Microservices and Enterprise Banking Applications

  • Rahul Mittal
  • July 4, 2026
  • 8 min read
  • 0
  • java
  • JavaEvolutionSeries
  • programming

Part 41: Java 21 – Vector API – Unlocking Modern CPU Performance for Banking, AI and Analytics

  • Rahul Mittal
  • July 4, 2026
  • 6 min read
  • 0
  • java
  • JavaEvolutionSeries
  • programming

Part 40: Java 21 – Foreign Function & Memory API (Project Panama) – The Future of Native Integration for Enterprise Applications

  • Rahul Mittal
  • July 4, 2026
  • 7 min read
  • 0
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