Web Reference: Sep 24, 2025 Β· Java IO API provides classes and methods to handle input and output operations efficiently. It allows reading data from various sources and writing data to different destinations, essential for almost all Java applications. Lesson: Basic I/O This lesson covers the Java platform classes used for basic I/O. It first focuses on I/O Streams, a powerful concept that greatly simplifies I/O operations. The lesson also looks at serialization, which lets a program write whole objects out to streams and read them back again. Java provides strong but flexible support for I/O related to files and networks but this tutorial covers very basic functionality related to streams and I/O. We will see the most commonly used examples one by one β. Java byte streams are used to perform input and output of 8-bit bytes.
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