Abstract  Mysql tutorial

MySQL is a relational database-management system (RDBMS). The term relational indicates that MySQL can store its data as a number of different tables that are related to each other in some way.

The advantage of this type of database over a flat table system is that very large databases can be constructed from different tables, each of which contains only information relevant to that table.

Security and the Java Platform(Java security Tutorial)

Underlying the Java SE Platform is a dynamic, extensible security architecture, standards-based and interoperable. Security features -- cryptography, authentication and authorization, public key infrastructure, and more -- are built in. The Java security model is based on a customizable "sandbox" in which Java software programs can run safely, without potential risk to systems or users.

Java socket Overview

A socket is one end-point of a two-way communication link between two programs running on the network. Socket classes are used to represent the connection between a client program and a server program. The java.net package provides two classes--Socket and ServerSocket--that implement the client side of the connection and the server side of the connection, respectively.

Abstract (java net tutorial)

Java net Provides the classes for implementing networking applications. Using the socket classes, you can communicate with any server on the Internet or implement your own Internet server. A number of classes are provided to make it convenient to use Universal Resource Locators (URLs) to retrieve data on the Internet.

Abstract (Java font)

In Java API,the Font class represents fonts, which are used to render text in a visible way. A font provides the information needed to map sequences of characters to sequences of glyphs and to render sequences of glyphs on Graphics and Component objects.