Java Tutorial - Java Script :
Many of the programs you create with Java need to interact with some kind of data source. Information can be stored on a computer in many ways, including files on a hard drive or CD-ROM, pages on a website, and even bytes in the computer’s memory. You might expect to need a different technique to handle each different storage device. Fortunately, that isn’t the case. In Java, information can be stored and retrieved using a communications system called streams, which are implemented in the java.io package. Today, you learn how to create input streams to read information and output streams to store information. You’ll work with each of the following:
· Byte streams, which are used to handle bytes, integers, and other simple data types
Character streams, which handle text files and other text sources You can deal with all data the same way when you know how to work with an input stream, whether the information is coming from a disk, the Internet, or even another program. The same holds for using output streams to transmit data
