Advance Java encompasses the specialized and advanced features of the Java programming language used for developing enterprise-level applications. It includes technologies like Java Enterprise Edition (Java EE), which provides frameworks for web development (Servlets, JSP), distributed computing (EJB), and services for enterprise solutions (JMS, JPA). Advanced Java also covers topics such as JDBC for database connectivity, RMI for remote method invocation, and web services for interoperable machine-to-machine communication. It emphasizes building scalable, secure, and robust applications, often for business environments.