Introduction:
Java I/O (Input/Output) is a crucial aspect of programming, enabling the handling of data streams, files, and other external sources. The java.io package provides a versatile set of classes and interfaces for performing I/O operations. In this tutorial, we will explore the basics of Java I/O, covering common scenarios and providing examples to illustrate key concepts.
1. Reading and Writing to the Console:
Let’s start with basic console I/O using System.in and System.out.
Example 1.1: Reading from the Console:
Example 1.2: Writing to the Console:
2. Reading and Writing Files:
Now, let’s move on to file I/O operations using FileInputStream, FileOutputStream, BufferedReader, and BufferedWriter.
Example 2.1: Reading from a File:
Example 2.2: Writing to a File:
3. Working with Binary Data:
Binary I/O is common when dealing with images, videos, or any non-textual data.
Example 3.1: Reading Binary Data:
Example 3.2: Writing Binary Data:
Conclusion:
Java I/O provides a versatile set of tools for handling different types of data streams and performing input/output operations. From basic console interactions to reading and writing files, mastering Java I/O is essential for building robust and versatile applications. These examples cover fundamental aspects of Java I/O, and as you delve deeper into the topic, you’ll discover more advanced features and use cases.
