Java Development refers to the process of creating applications and software using the Java programming language. It is widely used for building web applications, mobile applications, and enterprise-level software due to its platform independence, meaning that Java applications can run on any device that has the Java Virtual Machine (JVM). Developers use various tools and frameworks, such as Spring and Hibernate, to streamline the development process. The Java Development Kit (JDK) provides essential tools for writing, compiling, and debugging Java code. Overall, Java Development is a crucial skill in the tech industry, enabling the creation of robust and scalable applications.