"Sams Teach Yourself Java in 21 Days" continues to be one of the most popular, best-selling Java tutorials on the market. Written by two expert technical writers, it has been acclaimed for its clear and personable writing, for its extensive use of examples, and for its logical and complete organization. <P>This new edition of the book maintains and improves upon all these qualities, while updating, revising, and reorganizing the material to cover the latest developments in Java and to expand the book's coverage of core Java programming topics.<P>Sun's new version of Java 2 Standard Edition--SDK version 1.4--is expected to be released by the end of 2001. According to Sun, version 1.4 builds upon Java's cross-platform support and security model with new features and functionality, enhanced performance and scalability, and improved reliability and serviceability.