The Java Way of File Operations
Interfaces and classes for dealing with files and other I/O types are in the java.io package. An interface is a class that contains abstract methods. Classes in java.io form a class hierarchy.
The two main class types in java.io are text oriented (character streams) and binary oriented (byte streams). Subclasses of the Reader and Writer classes are text oriented; those of the InputStream and OutputStream classes are binary oriented.
InputStream and OutputStream are abstract; that is, they can't be instantiated directly. To use an abstract class you must subclass it and instantiate the subclass. The subclasses of InputStream and OutputStream allow the reading of binary data to and from various types of input and ...
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