How to Read and Write Data using FileInputStream and FileOutputStream | Java IO | Java Tutorial

In this Java IO tutorial, you'll learn how to effectively read and write data using FileInputStream and FileOutputStream classes. FileInputStream is used for reading data from files, while FileOutputStream is used for writing data to files.

### Topics Covered:
1. **Reading Data with FileInputStream**: You'll understand how to create a FileInputStream object and read data from a file byte by byte or in chunks.
2. **Writing Data with FileOutputStream**: You'll learn how to create a FileOutputStream object and write data to a file byte by byte or in chunks.
3. **Reading and Writing Data**: We'll explore examples where we read data from one file using FileInputStream and write it to another file using FileOutputStream.
4. **Closing Streams**: You'll understand the importance of closing FileInputStream and FileOutputStream streams to release system resources.

By the end of this tutorial, you'll have a clear understanding of how to use FileInputStream and FileOutputStream to perform read and write operations efficiently in Java.

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How to read and write the data using FileInputStream and FileOutputStream? | Java IO | Java Tutorial

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At some point you might want to explain that the write() method takes an int parameter to write each byte, and ignores the upper 24 bits of it. The inexperienced who might be watching these might find that strange at first.