SequenceInputStream

SequenceInputStream is a class in Java's input/output (IO) package that allows you to read data from a sequence of other input streams. It treats a collection of input streams as if they were a single, combined input stream. This is particularly useful when you need to concatenate multiple data sources into one logical stream for processing.

The SequenceInputStream class works by reading from the first input stream in the sequence until it reaches the end-of-file. Once the first stream is exhausted, it automatically moves to the next input stream in the sequence and continues reading. This process repeats until all input streams in the sequence have been read. You can provide the input streams to SequenceInputStream either as an enumeration of input streams or as two individual input streams.

A common use case for SequenceInputStream is when dealing with multiple files that logically belong together, such as parts of a larger file that have been split. By using SequenceInputStream, you can read through these files sequentially without needing to open and close each one individually within your application logic. This simplifies file manipulation and reading operations when data is distributed across multiple sources. The class handles the underlying stream management, making it convenient for developers.