Java Tutorial - Java Script :
In Java, all data is written and read using streams. Streams, like the bodies of water that share the same name, carry something from one place to another. A stream is a path traveled by data in a program. An input stream sends data from a source into a program, and an output stream sends data from a program to a destination. You will deal with two types of streams today: byte streams and character streams. Byte streams carry integers with values that range from 0 to 255. A diverse assortment of data can be expressed in byte format, including numerical data, executable programs, Internet communications, and bytecode—the class files run by a Java virtual machine.
In fact, every kind of data imaginable can be expressed using either individual bytes or a series of bytes combined with each other.Character streams are a specialized type of byte stream that handles only textual data.They’re distinguished from byte streams because Java’s character set supports Unicode, a standard that includes many more characters than could be expressed easily using bytes. Any kind of data that involves text should use character streams, including text files, web pages, and other common types of text.
