Java is a high-level, class-based, object-oriented programming language that is widely used for building a variety of applications. Developed by Sun Microsystems in the mid-1990s and now owned by Oracle Corporation, Java is designed to have as few implementation dependencies as possible, which means it can run on any platform that supports Java without the need for recompilation.

Key features of Java include:

Platform Independence: Java applications are typically compiled to bytecode that can run on any Java Virtual Machine (JVM) regardless of the underlying computer architecture. This is often described as "write once, run anywhere" (WORA).

Object-Oriented: Java uses an object-oriented programming model which allows developers to create modular programs and reusable code. The core concepts include classes and objects, inheritance, polymorphism, encapsulation, and abstraction.

Robust and Secure: Java is designed for robustness, with strong memory management, exception handling, and garbage collection. It also includes a security manager that defines access rules for classes.

Multithreaded: Java has built-in support for multithreaded programming, allowing multiple threads to run concurrently, which is essential for high-performance applications.    

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