Project Overview Campus Course & Records Manager (CCRM) is a comprehensive Java console application designed for educational institutions to manage students, courses, enrollments, and grades efficiently. This application demonstrates advanced Java SE features including OOP principles, design patterns, file I/O operations, and modern Java APIs. Course: Programming in Java Project Type: Console Application JDK Version: 17 or higher IDE: Eclipse/IntelliJ IDEA/VS Code

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📋 Table of Contents • Features • Project Structure • How to Run • Java Evolution Timeline • Java Platforms Comparison • Java Architecture • Installation Guide • Technology Mapping • Sample Usage

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✨ Features Core Functionality • Student Management: Add, list, update, and deactivate students • Course Management: Create, search, filter, and manage courses • Enrollment System: Enroll/unenroll students with credit limits • Grading System: Record marks, compute GPA, generate transcripts • File Operations: Import/export CSV data, backup utilities • Reports: GPA distribution, student transcripts, course analytics Technical Demonstrations • OOP Principles: Encapsulation, Inheritance, Abstraction, Polymorphism • Design Patterns: Singleton, Builder • Java APIs: NIO.2, Streams, Date/Time API • Advanced Features: Lambdas, Enums, Recursion, Exception Handling

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📁 Project Structure text CCRM_Project/ ├── src/edu/ccrm/ │ ├── Main.java # Application entry point │ ├── config/AppConfig.java # Singleton configuration │ ├── domain/ # Core entities (Person, Student, Course) │ ├── cli/CLIMenu.java # Command-line interface │ ├── service/ # Business logic services │ ├── io/ # File I/O operations │ └── test/SimpleTest.java # Test class ├── bin/ # Compiled class files ├── data/ # CSV data files ├── docs/ # Documentation ├── compile.bat/sh # Compilation script ├── run.bat/sh # Execution script └── README.md # This file

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🚀 How to Run Prerequisites • JDK 17 or higher installed • System PATH configured for Java Compilation and Execution Using Scripts (Recommended): bash

Compile the project

./compile.sh # Linux/Mac compile.bat # Windows

Run the application

./run.sh # Linux/Mac run.bat # Windows Using Command Line: bash

Compile all Java files

javac -d bin src/edu/ccrm/.java src/edu/ccrm/config/.java src/edu/ccrm/domain/.java src/edu/ccrm/cli/.java

Run the application

java -cp bin edu.ccrm.Main

Run tests

java -cp bin edu.ccrm.test.SimpleTest Using Eclipse IDE:

1. File → Import → Existing Projects into Workspace
2. Select CCRM_Project folder
3. Right-click project → Run As → Java Application
4. Choose edu.ccrm.Main as main class

🏗️ Java Architecture JDK (Java Development Kit) • Purpose: Development environment for building Java applications • Includes: Compiler (javac), tools, libraries, JRE • Role in Project: Used to compile and build CCRM application JRE (Java Runtime Environment) • Purpose: Runtime environment for executing Java applications • Includes: JVM, core libraries, supporting files • Role in Project: Required to run the compiled CCRM application JVM (Java Virtual Machine) • Purpose: Executes Java bytecode, provides platform independence • Features: Memory management, garbage collection, optimization • Role in Project: Runs the compiled CCRM.class files Interaction: JDK → Compiles to bytecode → JRE → JVM executes

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💻 Installation Guide Windows JDK Installation Step 1: Download JDK

1. Visit Oracle JDK Downloads
2. Download JDK 17+ for Windows x64 Installer Step 2: Install JDK
3. Run the downloaded .exe file
4. Follow installation wizard (keep default settings)
5. Note the installation path (typically C:\Program Files\Java\jdk-17) Step 3: Set Environment Variables
6. Right-click "This PC" → Properties → Advanced system settings
7. Click "Environment Variables"
8. Under System variables, find/edit JAVA_HOME: text Variable: JAVA_HOME Value: C:\Program Files\Java\jdk-17
9. Edit Path variable, add: %JAVA_HOME%\bin Step 4: Verify Installation cmd java -version javac -version https://screenshots/jdk-verification.png Eclipse IDE Setup Step 1: Download and Install Eclipse
10. Download Eclipse IDE for Java Developers
11. Extract to preferred location
12. Launch eclipse.exe Step 2: Create/Import Project
13. File → New → Java Project
14. Project name: CCRM_Project
15. Use default JRE (Java SE-17)
16. Finish project creation Step 3: Configure Build Path
17. Right-click project → Build Path → Configure Build Path
18. Add source folder: src/
19. Set output folder: bin/ https://screenshots/eclipse-setup.png

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🔧 Technology Mapping Syllabus Topic Implementation Location File/Class/Method OOP Principles Domain classes Person.java, Student.java Singleton Pattern Configuration AppConfig.getInstance() Exception Handling Service classes Custom exceptions in service layer File I/O (NIO.2) IO package FileService.java - backup operations Stream API Service classes StudentService.filterStudents() Date/Time API Domain classes Person.createdDate, backup timestamps Lambdas Utility classes Comparator in sorting methods Enums Domain package Semester.java, Grade.java Recursion Utility classes FileUtils.calculateDirectorySize() Design Patterns Various Singleton, Builder patterns

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⚠️ Enabling Assertions Assertions are disabled by default. To enable for debugging: Command Line: bash java -ea -cp bin edu.ccrm.Main Eclipse IDE:

1. Run → Run Configurations
2. Select your Java Application
3. Arguments tab → VM arguments: -ea
4. Apply → Run Sample Assertion Usage: java // Credit validation example public void enrollStudent(Student s, Course c) { assert s != null : "Student cannot be null"; assert c != null : "Course cannot be null"; assert s.getCredits() + c.getCredits() <= MAX_CREDITS : "Credit limit exceeded"; // Enrollment logic }

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📊 Sample Usage Sample Data Files students.csv: csv id,regNo,fullName,email,status S001,2023001,John Doe,john.doe@edu.ccrm,ACTIVE S002,2023002,Jane Smith,jane.smith@edu.ccrm,ACTIVE courses.csv: csv code,title,credits,instructor,semester,department CS101,Introduction to Programming,3,Dr. Alice,SPRING,CS MA201,Calculus I,4,Dr. Bob,FALL,MATH Example Workflow

1. Start Application: Run java -cp bin edu.ccrm.Main
2. Import Data: Use "Import/Export Data" menu option
3. Manage Students: Add, list, or update student records
4. Course Enrollment: Enroll students in courses with credit checks
5. Record Grades: Input marks, automatically compute GPA
6. Generate Reports: View transcripts and analytics
7. Backup Data: Create timestamped backups of all data

👥 Acknowledgments References • Oracle Java Documentation • Java SE 17 API Specification • Eclipse IDE User Guide Third-party Libraries • Pure Java SE (no external dependencies) Academic Integrity This project represents my original work. All code has been developed independently following the project specifications.