Add comprehensive learning progression guide for Java to C#/C conversion

[Copilot]

Created a complete learning resource suite to help students systematically convert Java assignments to C# or C, addressing the need for structured progression from beginner to advanced concepts.

📚 What's Added

This PR introduces four comprehensive learning guides:

1. Learning Progression Guide (LEARNING_PROGRESSION_GUIDE.md)

• Organizes all 23 Java assignments by difficulty level (Beginner → Intermediate → Advanced)
• Provides a structured 16-week curriculum with clear learning phases
• Maps each assignment to equivalent concepts in C# and C
• Includes detailed explanations of programming concepts covered

2. Java to C# Examples (JAVA_TO_CSHARP_EXAMPLES.md)

• Complete side-by-side code conversions from Java to C#
• Covers modern C# features like properties, LINQ, and string interpolation
• Includes practical examples from basic I/O to advanced OOP concepts
• Demonstrates C#-specific advantages and best practices

3. Java to C Examples (JAVA_TO_C_EXAMPLES.md)

• Shows how to translate Java concepts to procedural C programming
• Covers manual memory management and pointer usage
• Demonstrates OOP simulation using structures and function pointers
• Includes low-level programming concepts often abstracted in Java

4. Quick Reference Guide (QUICK_REFERENCE_GUIDE.md)

• Side-by-side syntax comparison tables for rapid lookup
• Covers data types, control structures, functions, and common operations
• Includes compilation and execution commands for each language
• Provides starter templates for quick project setup

🎯 Learning Path Structure

The guides organize assignments into a logical progression:

Phase 1 (Weeks 1-3): Foundation

• Basic syntax, variables, I/O
• Examples: JavaIntroduction, JavaBasics, SumOfFiveIntegers

Phase 2 (Weeks 4-6): Core Programming

• Functions, loops, mathematical operations
• Examples: Factorial, RandomNum, GuessingGame

Phase 3 (Weeks 7-8): Object-Oriented Basics

• Introduction to classes and objects
• Examples: ClassesForRealWorldObject

Phase 4 (Weeks 9-12): Data Structures & Algorithms

• Arrays, sorting, searching algorithms
• Examples: ArrayAndStringTask1, SortingArrayUsingDifferentWays

Phase 5 (Weeks 13-16): Advanced Concepts

• Complex OOP, algorithms, GUI development
• Examples: GuessingGameInOOP, ROT13Cipher, FinalProjet

🔄 Key Conversions Covered

The guides demonstrate practical conversions like:

// Java
Scanner scanner = new Scanner(System.in);
String name = scanner.nextLine();
System.out.println("Hello " + name);

// C#
string name = Console.ReadLine();
Console.WriteLine($"Hello {name}");

// C
char name[100];
fgets(name, sizeof(name), stdin);
printf("Hello %s\n", name);

📖 Updated Documentation

• Enhanced README.md with links to all learning resources
• Created clear navigation between different guides
• Provided context for when to use each resource

This comprehensive learning suite enables students to systematically understand Java concepts and successfully convert them to C# or C, with clear progression from basic syntax to advanced programming paradigms.

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