This reference guidebook covers the Java API libraries, Java classes and interfaces, together with a broad range of programming information. The text is alphabeticized by keyword. Java is an object-oriented programming language for the Internet that came into existence only recently and has swept the programming community. It has many elements in common with C and C++. It is also a secure language, which means that it is possible to restrict the access of Java programs to parts of the system, such as files and memory address, without limiting the capabilities of the language. This is one of the most important reasons why Java is so well suited for use on the Web. Java is also a solid general purpose language, which Sun Microsystems intends to use in a variety of applications, and which will (through Sun"s licensing efforts) turn up in a wide range of products. Herbert Schildt is the author of "C: The Complete Reference", "Teach Yourself C++" and "C++: The Complete Reference", and is co-author (with Patrick Naughton) of "Java: The Complete Reference".