OOC2 I/O Labs

Java file I/O lab exercises for the Object-Oriented Computing 2 (OOC2) module. These examples demonstrate reading from and writing to files using byte streams, character streams, and buffered I/O.

Overview

This repository contains a collection of Java programs that illustrate core file I/O concepts from the java.io package. Each class focuses on a different aspect of file handling, from low-level byte-at-a-time copying to buffered readers, Scanner-based parsing, and formatted output. Sample resource files are included so that every example can be compiled and run immediately.

Features

• Byte stream copying with FileInputStream and FileOutputStream, including ASCII visualization
• Character stream copying using FileReader and FileWriter
• Buffered I/O with BufferedReader for efficient line-by-line reading
• Scanner-based file parsing to read integers and compute averages from a file
• Formatted file output using java.util.Formatter
• Exception handling patterns with try-catch-finally for resource management
• Sample resource files including text files, CSV data, and serialized objects

Prerequisites

• Java Development Kit (JDK) 8 or later
• A Java IDE (Eclipse, IntelliJ IDEA, or VS Code) or the command-line javac compiler

Getting Started

Installation

git clone https://github.com/danielcregg/ooc2-io.git
cd ooc2-io

Usage

Compile and run any example from the project root:

javac -d bin src/ie/gmit/ooc2labs/io/CopyFileByte.java
java -cp bin ie.gmit.ooc2labs.io.CopyFileByte

The programs read from and write to the resources/ directory, which contains all required input files.

Tech Stack

Technology	Purpose
Java 8	Core programming language and I/O APIs
java.io	File streams, readers, writers, and buffered I/O
java.util.Scanner	File parsing and tokenization

License

This project is licensed under the MIT License. See the LICENSE file for details.