Welcome to the Java API Reference documentation. This section provides comprehensive information about the Java programming language's API, including classes, interfaces, and methods.

Overview

The Java API is a vast collection of classes and interfaces that provide a wide range of functionalities for Java developers. It includes everything from basic data types and collections to advanced features like networking, threading, and database connectivity.

Key Features

  • Standard Libraries: Provides a wide range of classes for common programming tasks.
  • Platform Independence: Ensures that Java code can run on any platform with a Java Virtual Machine (JVM).
  • Object-Oriented Programming (OOP): Supports the creation of reusable code through classes and objects.

Getting Started

To get started with the Java API, you can explore the following resources:

Core Java API

The core Java API includes the following key modules:

  • java.lang: Provides the fundamental classes and interfaces, such as String, Integer, and Object.
  • java.util: Offers utility classes for collections, date and time, and other general-purpose classes.
  • java.io: Provides classes for input/output operations, including file handling and network streams.

Example

Here's an example of how you can use the String class to concatenate two strings:

String str1 = "Hello, ";
String str2 = "World!";
String result = str1 + str2;
System.out.println(result);

This will output:

Hello, World!

Additional Resources

For more information on the Java API, you can visit the following resources:

Image Gallery

  • Java Logo
  • Java Class Diagram
  • Java Collections