JAVA 8 FEATURES

MASTER FUNCTIONAL PROGRAMMING WITH JAVA 8

INTRODUCTION TO JAVA 8

Java 8 is a major release that brought functional programming, lambda expressions, and Stream API to the language. It makes Java more concise, expressive, and performant.

LAMBDA EXPRESSIONS

Enables writing anonymous methods Great for functional interfaces Boosts code brevity

(int a, int b) -> a + b

FUNCTIONAL INTERFACES

A functional interface has exactly one abstract method. Used in lambda expressions and streams.

@FunctionalInterface interface MyFunction { void apply(); }

STREAM API

Processes collections in a functional style Supports map, filter, reduce, and collect

list.stream().filter(...).collect(...);

DEFAULT & STATIC METHODS

Java 8 lets you define default and static methods in interfaces. Improves interface flexibility.

default void log() {} static void help() {}

DATE & TIME API

New java.time package replaces outdated Date and Calendar. Immutable and thread-safe.

LocalDate.now(); LocalTime.now();

CONCLUSION

Java 8 revolutionized Java programming with modern features: ✅ Functional programming ✅ Cleaner syntax ✅ Streamlined APIs ✅ Better date/time support 📖 Read full guide: javacody.com