Unit 5: Managing Input/Output Files, Streams & Java Utilities — Object Oriented Programming using JAVA

Unit 5 Learning Hub

Managing Input/Output Files, Streams & Java Utilities

Official MJPRU BCA Unit 5: Managing Input/Output Files, Streams & Java Utilities for BCA-201N (Object Oriented Programming using JAVA).

Syllabus Topics:Java I/O Stream Model: Concept of Streaming Data, Sources and Sinks, Byte Streams vs Character StreamsByte Stream Class Hierarchy: java.io.InputStream and java.io.OutputStream Root Abstract ClassesFile Byte Streaming: FileInputStream and FileOutputStream for Reading and Writing Raw Binary/Text DataBuffered Byte Streaming: BufferedInputStream and BufferedOutputStream for Optimized Disk I/OCharacter Stream Class Hierarchy: java.io.Reader and java.io.Writer Root Abstract Classes, 16-bit Unicode HandlingFile Character Streaming: FileReader and FileWriter, Character Encoding ConventionsBuffered Character Streaming: BufferedReader, BufferedWriter, readLine() and newLine() MethodsStandard Console Input: InputStreamReader with BufferedReader, System.in Wrapping, System.console()Data Streams: DataInputStream and DataOutputStream for Primitive Binary Typed I/O (writeInt, readDouble)Object Serialization & Deserialization: ObjectOutputStream, ObjectInputStream, Serializable Marker InterfaceThe transient Keyword: Excluding Sensitive Member Variables from Object SerializationFile Class (java.io.File): Pathnames, File Metadata, exists(), isFile(), isDirectory(), length(), delete()Directory Management: mkdir(), mkdirs(), list(), listFiles() Operations on Filesystem DirectoriesI/O Exception Handling: IOException, FileNotFoundException, EOFException, try-with-resources AutoCloseableModern Java NIO Preview: java.nio Package, Path, Paths, Files Utility Methods, High-Performance Buffers

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Introduction to Computers & The IPO Cycle

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Topic 1 · The foundation of modern computing

Introduction to Computers & The IPO Cycle

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Ready to master this concept? Give it a quick read & tap the check!

💡 The Big Picture:A computer is an electronic system that takes raw data as Input, processes it under programmed logic, and produces meaningful Information as Output.

🍪 Everyday Analogy:Think of baking cookies: Flour & Sugar (Input) ➔ The Oven (Processing) ➔ Warm Delicious Cookie (Output)! 🍪

Key Exam Takeaways

·Data = Raw, unprocessed facts without context (e.g. 42, 'apple').
·Information = Structured data with meaning (e.g. 'Temperature: 42°C').
·Hardware is what you can touch; Software is the instructions running inside.

Instant Knowledge Check

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Which of the following represents unprocessed raw facts?

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