What is abstraction in java with example?

Yo coders! Abstraction in Java hides complex details, shows essentials—like a TV remote (press power, not wire internals). Achieved via abstract classes/interfaces. Example: Abstract class Shape with draw() method; subclasses Circle implements it. Code: javaabstract class Shape { abstract void draw(); } class Circle extends Shape { void draw() { System.out.println("Circle drawn"); } } Hides how, shows what. Boosts modularity! W3Schools: Java Abstraction

Practical tip: In microservices, abstract PaymentProcessor for Stripe/PayPal impls. Abstraction reduces coupling. Coffee machine ex: Press button, ignore grind/brew. Code snippet: Interface Processor with process(); impls vary. Saves time on changes!

Wrapping up: Abstraction = generalization. Remote control: Buttons abstract circuits. Java: Interfaces for multi-inherit sim. DataCamp: Java Abstraction

Academic breakdown: Abstraction via abstract keyword—class can't instantiate, methods unimplemented. Example: Vehicle abstraction: javaabstract class Vehicle { abstract void start(); } class Car extends Vehicle { void start() { System.out.println("Engine on"); } } Motorcycle brakes analogy: Squeeze lever, don't see hydraulics. Enables polymorphism. Vs. encapsulation: Abstraction is blueprint, encap is data hiding. Programiz: Abstract Classes

TL;DR: Hide internals, expose API. Ex: Interface Drawable with draw(). Boom.

As a Java dev with 10+ yrs, abstraction simplifies by focusing on "what" not "how"—key OOP pillar. Use abstract classes for partial impl, interfaces for contracts. Deep example: Banking app—abstract Account with withdraw(); SavingsAccount overrides with interest logic. Prevents direct instantiation, forces sub-classing. Real-world: Shapes in graphics lib. Pros: Flexibility, security. Cons: Overuse complicates. Java 8+ default methods enhance. GeeksforGeeks: Abstraction

Stack Overflow vibes: Real ex—Instruction abstract class for CPU ops: perform() calls abstract steps. Forces order, delegates impl. Beats interfaces if shared state needed. Stack Overflow: Abstract Examples

Beginner guide: Start with abstract Animal—makeSound(). Dog: "Woof". Hides lungs/vocal cords. Builds extensible code. Medium: Abstraction Guide

From design patterns lens: Abstraction in Factory method—abstract Product created polymorphically. Example: GUI framework—abstract Button drawn differently on Win/Mac. Enhances reusability. Tutorialspoint: Abstraction