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🚀 Java 8 Features - A Comprehensive Guide

Java 8 Lambda Streams Optional

Java 8 was a revolutionary release that introduced functional programming capabilities to the Java ecosystem. This repository contains comprehensive examples, use cases, and best practices for all major Java 8 features.

🎯 Key Features Covered

1. Lambda Expressions

  • Functional interfaces
  • Type inference
  • Method references

2. Stream API

  • Sequential & parallel streams
  • Intermediate operations (filter, map, sorted)
  • Terminal operations (collect, forEach, reduce)
  • Stream pipelines

3. Optional Class

  • Null-safe handling
  • Optional creation and manipulation
  • Best practices for avoiding NullPointerException

4. Functional Interfaces

  • Predicate, Function, Consumer, Supplier
  • Custom functional interfaces

5. Default & Static Methods in Interfaces

  • Interface evolution
  • Multiple inheritance resolution

6. Date & Time API (java.time)

  • LocalDate, LocalTime, LocalDateTime

▶ Click Here: Notes