Core Java Programming is a fundamental version of the Java programming language that establishes the groundwork for all future Java development. It refers to a collection of libraries rather than the programming language itself. Core Java is used to develop desktop or window-based applications and is a part of the Java Standard Edition (Java SE). It covers fundamental concepts of Java, such as object-oriented programming, Java language basics, classes and objects, annotations, interfaces and inheritance, numbers and strings, generics, packages, and exception handling. Core Java is designed to be simple, object-oriented, robust, platform-independent, and secure, making it an ideal choice for developing applications that can run on different platforms.