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This tutorial contains a set of articles of the package. The Input-Output package in Java is essential for the reading and writing data from one stream to another.

Java IO package mainly categories into the Java Byte Stream and Character Streams. So, we divided each one and cover each class of one of them to understand the scope are of the file i/o.

And each class contains several methods to perform operations on stream or file so we covered that too in detail so the reader can understand the ground level implementation and uses of this important package.