https://github.com/srinivas6303/java8_features
This repository contains examples and explanations of key Java 8 features, including Lambda Expressions, Functional Interfaces, Optional Class, and Stream API.Each section demonstrates the new functionalities introduced in Java 8 to promote efficient and concise coding practices.
https://github.com/srinivas6303/java8_features
functional-interface optional-class stream-api
Last synced: 3 months ago
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This repository contains examples and explanations of key Java 8 features, including Lambda Expressions, Functional Interfaces, Optional Class, and Stream API.Each section demonstrates the new functionalities introduced in Java 8 to promote efficient and concise coding practices.
- Host: GitHub
- URL: https://github.com/srinivas6303/java8_features
- Owner: srinivas6303
- Created: 2024-09-11T17:56:56.000Z (10 months ago)
- Default Branch: main
- Last Pushed: 2024-09-11T18:09:13.000Z (10 months ago)
- Last Synced: 2025-02-01T01:55:22.711Z (5 months ago)
- Topics: functional-interface, optional-class, stream-api
- Language: Java
- Homepage:
- Size: 16.6 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
### Java 8 Features
This repository contains examples and explanations of key Java 8 features, including Lambda Expressions, Functional Interfaces, Optional Class, and Stream API.Each section demonstrates the new functionalities introduced in Java 8 to promote efficient and concise coding practices.
***Folder Structure***
1.Function_Interface & Lambda Expression:
This folder demonstrates how to create and use functional interfaces and lambda expressions to write concise and anonymous methods.
2.Stream_Api:
Examples of intermediate and terminal methods used in the Stream API for handling and processing collections.
3.Optional_class.txt:
This file provides details on how to handle null values using the Optional class, preventing NullPointerException.
***Features Covered***
1.Lambda Expressions
Lambda expressions were introduced in Java 8 to provide a concise way to write anonymous methods. They can be used with functional interfaces, which contain only one abstract method.
2.Functional Interfaces
A functional interface is an interface that contains only one abstract method, and it can be implemented using a lambda expression. Predefined functional interfaces include ActionListener, Runnable, and user-defined interfaces.
3.Optional Class
The Optional class was introduced in Java 8 to handle null values more gracefully, avoiding NullPointerException. It is a container that may or may not contain a non-null value. Methods of the Optional class include creating empty Optionals, Optionals with non-null values, and Optionals that can hold either a non-null value or null.
4.Stream API
The Stream API is used to process collections of objects in a functional programming manner.
It supports two types of operations:
Intermediate Operations: These return a new stream and are lazy.
Terminal Operations: These produce a result or a side-effect.