https://github.com/athrocks/java-8-stream-api
https://github.com/athrocks/java-8-stream-api
functional-programming java java-stream-api java-streams java8 java8-lambda-expression
Last synced: 2 months ago
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- Host: GitHub
- URL: https://github.com/athrocks/java-8-stream-api
- Owner: athrocks
- Created: 2024-12-22T17:14:45.000Z (5 months ago)
- Default Branch: main
- Last Pushed: 2024-12-23T12:51:01.000Z (5 months ago)
- Last Synced: 2025-01-24T13:18:00.418Z (4 months ago)
- Topics: functional-programming, java, java-stream-api, java-streams, java8, java8-lambda-expression
- Language: Java
- Homepage:
- Size: 120 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
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Metadata Files:
- Readme: README.md
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README
# Java 8 Features Overview
This repository contains examples and explanations for the major features introduced in Java 8, organized into separate modules for better understanding.
## Folder Structure and Features
### L01_Lambda_Expression
This module introduces lambda expressions, enabling concise syntax for representing functional interfaces and anonymous methods. Lambda expressions simplify the development of functional programming constructs in Java.
### L02_Functional_Interface
Focuses on functional interfaces, which are interfaces with a single abstract method. Includes the `@FunctionalInterface` annotation and explains their critical role in enabling lambda expressions.
### L03_Method_References
Covers method references, which are a shorthand notation for lambdas to refer to methods or constructors. Includes examples of:
- Static method references (`ClassName::staticMethod`)
- Instance method references (`instance::instanceMethod`)
- Constructor references (`ClassName::new`)
### L04_Optional_Class
Explains the `Optional` class, a container object used to handle potential null values gracefully. Demonstrates methods like `orElse`, `isPresent`, and `ifPresent` to avoid `NullPointerException`.
### L05_Default_and_Static_method_in_Interface
Details how Java 8 allows interfaces to include:
- **Default methods**: Methods with a default implementation.
- **Static methods**: Utility methods that can be called without an instance of the interface.
### L06_Java8_Stream_APIs
Explores the powerful Stream API for processing collections and sequences of data in a functional style. Includes examples of:
- Intermediate operations like `filter`, `map`, and `sorted`.
- Terminal operations like `collect`, `forEach`, and `reduce`.
### L07_BiFunction_BiConsumer_BiPredicate
Explores the utility of `BiFunction`, `BiConsumer`, and `BiPredicate` functional interfaces for handling operations involving two inputs. Includes examples of:
- **`BiFunction`**: For applying a function to two arguments and producing a result.
- **`BiConsumer`**: For performing an operation that accepts two arguments but returns no result.
- **`BiPredicate`**: For evaluating a condition with two arguments and returning a boolean.
## How to Use This Repository
Each folder contains:
- **Code Examples**: Demonstrates how to implement and use the feature in real-world scenarios.
- **Documentation**: Provides detailed explanations of the concepts and their applications.
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Explore these features to harness the full potential of Java 8 for writing modern, concise, and efficient code.