Essentials of the Java Programming Language, Part 2
By Monica Pawlan
July 1999

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This series of lessons builds on the material presented in Java Programming Language Basics, Part 1, which introduced applications, applets, and servlets; simple file and database access operations; and remote method invocation (RMI).

The lessons and code examples for Part 2 are somewhat more complex. They walk you through network communications, building a user interface using more components, data encryption and decryption (pseudo code only), grouping multiple data elements into one object (collections), and internationalizing a program. Part 2 concludes with some object-oriented programming concepts.