Oracle Java is the #1 programming language and development platform. It reduces costs, shortens development timeframes, drives innovation, and improves application services.

Download the Java including the latest version 17 LTS on the Java SE Platform. These downloads can be used for any purpose, at no cost, under the Java SE binary code license.

Java applications are typically compiled to bytecode that can run on any Java virtual machine (JVM) regardless of the underlying computer architecture. The syntax of Java is similar to C and C++, but …

We recommend reading this tutorial, in the sequence listed in the left menu. Java is an object oriented language and some concepts may be new. Take breaks when needed, and go over the examples as …

2025年9月21日 · Java library calls. Type conversion. Anatomy of an if statement. If and if-else statements.

Let us deep dive in to the Reflection API, and see how you can use it to examine or modify the runtime behavior of applications running in the Java Virtual Machine.

OpenJDK JDK 25.0.1 General-Availability Release This page provides production-ready open-source builds of the Java Development Kit, version 25, an implementation of the Java SE 25 Platform under …

In Java, you can declare a variable anywhere inside your program, as long as it is declared before it is being used. (Some older languages require you to declare all the variables at the beginning of the …

2025年10月21日 · This download is for end users who need Java for running applications on desktops or laptops. Java 8 integrates with your operating system to run separately installed Java applications.

2009年10月6日 · Java SE helps you develop and deploy Java applications on desktops and servers. Java offers the rich user interface, performance, versatility, portability, and security that today's …