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+# Java to C# Conversion Examples
+
+This document provides concrete examples of converting Java code from the assignments to C# equivalents.
+
+## 🔄 **Basic Syntax Conversions**
+
+### 1. Hello World & Basic Output
+
+**Java (JavaIntroduction):**
+```java
+public class Main {
+    public static void main(String[] args) {
+        System.out.println("Hello World!");
+        System.out.println("Welcome to Java Programming");
+    }
+}
+```
+
+**C# Equivalent:**
+```csharp
+using System;
+
+class Program 
+{
+    static void Main(string[] args) 
+    {
+        Console.WriteLine("Hello World!");
+        Console.WriteLine("Welcome to C# Programming");
+    }
+}
+```
+
+### 2. User Input & Variables
+
+**Java (JavaBasics):**
+```java
+import java.util.Scanner;
+
+class Main {
+    public static void main(String[] args) {
+        Scanner myObj = new Scanner(System.in);
+        System.out.println("Enter your name:");
+        String userName = myObj.nextLine();
+        
+        String output = userName.substring(0, 1).toUpperCase() + userName.substring(1);
+        System.out.println("Hello " + output);
+    }
+}
+```
+
+**C# Equivalent:**
+```csharp
+using System;
+
+class Program 
+{
+    static void Main(string[] args) 
+    {
+        Console.WriteLine("Enter your name:");
+        string userName = Console.ReadLine();
+        
+        string output = char.ToUpper(userName[0]) + userName.Substring(1);
+        Console.WriteLine("Hello " + output);
+    }
+}
+```
+
+### 3. Loops & Mathematical Operations
+
+**Java (Factorial):**
+```java
+import java.util.Scanner;
+
+class Main {
+    public static void main(String[] args) {
+        int num;
+        long factorial = 1;
+        Scanner input = new Scanner(System.in);
+        
+        System.out.println("Enter a number:");
+        num = input.nextInt();
+        
+        for(int i = 1; i <= num; ++i) {
+            factorial *= i;
+        }
+        System.out.printf("Factorial of %d = %d", num, factorial);
+    }
+}
+```
+
+**C# Equivalent:**
+```csharp
+using System;
+
+class Program 
+{
+    static void Main(string[] args) 
+    {
+        int num;
+        long factorial = 1;
+        
+        Console.WriteLine("Enter a number:");
+        num = int.Parse(Console.ReadLine());
+        
+        for(int i = 1; i <= num; ++i) 
+        {
+            factorial *= i;
+        }
+        Console.WriteLine($"Factorial of {num} = {factorial}");
+    }
+}
+```
+
+### 4. Random Numbers
+
+**Java (RandomNum):**
+```java
+import java.util.Scanner;
+
+class Main {
+    public static void main(String args[]) {
+        int min, max;
+        Scanner input = new Scanner(System.in);
+        
+        System.out.println("Enter minimum value: ");
+        min = input.nextInt();
+        System.out.println("Enter maximum value: ");
+        max = input.nextInt();
+        
+        int random_int = (int) Math.floor(Math.random() * (max - min + 1) + min);
+        System.out.println("Random value: " + random_int);
+    }
+}
+```
+
+**C# Equivalent:**
+```csharp
+using System;
+
+class Program 
+{
+    static void Main(string[] args) 
+    {
+        int min, max;
+        Random rand = new Random();
+        
+        Console.WriteLine("Enter minimum value: ");
+        min = int.Parse(Console.ReadLine());
+        Console.WriteLine("Enter maximum value: ");
+        max = int.Parse(Console.ReadLine());
+        
+        int randomInt = rand.Next(min, max + 1);
+        Console.WriteLine("Random value: " + randomInt);
+    }
+}
+```
+
+## 🎯 **Object-Oriented Programming Examples**
+
+### 5. Basic Class Creation
+
+**Java (ClassesForRealWorldObject):**
+```java
+class Body {
+    public Body() {
+        int legs = 2;
+        int arms = 2;
+        
+        running(legs);
+        training(arms);
+    }
+    
+    public void running(int legs) {
+        System.out.println("I am running using my " + legs + " legs.");
+    }
+    
+    void training(int arms) {
+        System.out.println("I train my " + arms + " arms.");
+    }
+}
+
+class Main {
+    public static void main(String[] args) {
+        Body person = new Body();
+    }
+}
+```
+
+**C# Equivalent:**
+```csharp
+using System;
+
+class Body 
+{
+    public Body() 
+    {
+        int legs = 2;
+        int arms = 2;
+        
+        Running(legs);
+        Training(arms);
+    }
+    
+    public void Running(int legs) 
+    {
+        Console.WriteLine($"I am running using my {legs} legs.");
+    }
+    
+    public void Training(int arms) 
+    {
+        Console.WriteLine($"I train my {arms} arms.");
+    }
+}
+
+class Program 
+{
+    static void Main(string[] args) 
+    {
+        Body person = new Body();
+        Console.ReadKey(); // Wait for key press
+    }
+}
+```
+
+### 6. Advanced OOP with Inheritance
+
+**Java (GuessingGameInOOP - Simplified):**
+```java
+abstract class GameSet {
+    private String name;
+    private String type;
+    
+    public GameSet(String name, String type) {
+        this.name = name;
+        this.type = type;
+    }
+    
+    public String getName() { return name; }
+    public String getType() { return type; }
+}
+
+class NumberGameSet extends GameSet {
+    public NumberGameSet() {
+        super("Number", "number");
+    }
+}
+```
+
+**C# Equivalent:**
+```csharp
+using System;
+
+abstract class GameSet 
+{
+    private string name;
+    private string type;
+    
+    public GameSet(string name, string type) 
+    {
+        this.name = name;
+        this.type = type;
+    }
+    
+    public string Name { get { return name; } }
+    public string Type { get { return type; } }
+    
+    // Or using auto-properties:
+    // public string Name { get; private set; }
+    // public string Type { get; private set; }
+}
+
+class NumberGameSet : GameSet 
+{
+    public NumberGameSet() : base("Number", "number") 
+    {
+    }
+}
+```
+
+## 📊 **Array and Collection Examples**
+
+### 7. Array Operations
+
+**Java (ArrayAndStringTask1 - Simplified):**
+```java
+import java.util.Arrays;
+
+public class Main {
+    public static void main(String[] args) {
+        int[] intArray = {1789, 2035, 1899, 1456, 2013};
+        String[] strArray = {"Java", "Python", "C#", "JavaScript"};
+        
+        System.out.println("Original array: " + Arrays.toString(intArray));
+        Arrays.sort(intArray);
+        System.out.println("Sorted array: " + Arrays.toString(intArray));
+        
+        Arrays.sort(strArray);
+        System.out.println("Sorted strings: " + Arrays.toString(strArray));
+    }
+}
+```
+
+**C# Equivalent:**
+```csharp
+using System;
+using System.Linq;
+
+class Program 
+{
+    static void Main(string[] args) 
+    {
+        int[] intArray = {1789, 2035, 1899, 1456, 2013};
+        string[] strArray = {"Java", "Python", "C#", "JavaScript"};
+        
+        Console.WriteLine("Original array: [" + string.Join(", ", intArray) + "]");
+        Array.Sort(intArray);
+        Console.WriteLine("Sorted array: [" + string.Join(", ", intArray) + "]");
+        
+        Array.Sort(strArray);
+        Console.WriteLine("Sorted strings: [" + string.Join(", ", strArray) + "]");
+        
+        // Alternative using LINQ:
+        // var sortedInts = intArray.OrderBy(x => x).ToArray();
+        // var sortedStrings = strArray.OrderBy(x => x).ToArray();
+    }
+}
+```
+
+## 🔐 **String Algorithms Example**
+
+### 8. ROT13 Cipher
+
+**Java (ROT13Cipher - Simplified):**
+```java
+class Main {
+    static String encipher(String text) {
+        String result = "";
+        
+        for (char c : text.toCharArray()) {
+            if (c >= 'a' && c <= 'z') {
+                result += (char)((c - 'a' + 13) % 26 + 'a');
+            } else if (c >= 'A' && c <= 'Z') {
+                result += (char)((c - 'A' + 13) % 26 + 'A');
+            } else {
+                result += c;
+            }
+        }
+        return result;
+    }
+    
+    public static void main(String[] args) {
+        String text = "Hello World";
+        String encrypted = encipher(text);
+        System.out.println("Encrypted: " + encrypted);
+    }
+}
+```
+
+**C# Equivalent:**
+```csharp
+using System;
+using System.Text;
+
+class Program 
+{
+    static string Encipher(string text) 
+    {
+        StringBuilder result = new StringBuilder();
+        
+        foreach (char c in text) 
+        {
+            if (c >= 'a' && c <= 'z') 
+            {
+                result.Append((char)((c - 'a' + 13) % 26 + 'a'));
+            } 
+            else if (c >= 'A' && c <= 'Z') 
+            {
+                result.Append((char)((c - 'A' + 13) % 26 + 'A'));
+            } 
+            else 
+            {
+                result.Append(c);
+            }
+        }
+        return result.ToString();
+    }
+    
+    static void Main(string[] args) 
+    {
+        string text = "Hello World";
+        string encrypted = Encipher(text);
+        Console.WriteLine($"Encrypted: {encrypted}");
+    }
+}
+```
+
+## 🔧 **Key C# Differences and Advantages**
+
+### Properties vs Getter/Setter Methods
+**Java:**
+```java
+private String name;
+public String getName() { return name; }
+public void setName(String name) { this.name = name; }
+```
+
+**C#:**
+```csharp
+public string Name { get; set; }
+// Or with private setter:
+public string Name { get; private set; }
+// Or with backing field:
+private string name;
+public string Name 
+{ 
+    get { return name; } 
+    set { name = value; } 
+}
+```
+
+### String Interpolation
+**Java:**
+```java
+System.out.println("Hello " + name + ", you are " + age + " years old");
+```
+
+**C#:**
+```csharp
+Console.WriteLine($"Hello {name}, you are {age} years old");
+```
+
+### LINQ for Data Operations
+**Java:**
+```java
+// Finding elements manually with loops
+for (int num : numbers) {
+    if (num > 5) {
+        result.add(num);
+    }
+}
+```
+
+**C#:**
+```csharp
+// Using LINQ
+var result = numbers.Where(num => num > 5).ToList();
+var sorted = numbers.OrderBy(x => x).ToArray();
+var sum = numbers.Sum();
+var average = numbers.Average();
+```
+
+### Using Statements (Automatic Resource Management)
+**C#:**
+```csharp
+using (var file = new StreamReader("file.txt")) 
+{
+    string content = file.ReadToEnd();
+    // File automatically closed when leaving this block
+}
+```
+
+## 🎮 **Complete Example: Simple Guessing Game**
+
+**Java Version:**
+```java
+import java.util.Scanner;
+import java.util.Random;
+
+public class GuessingGame {
+    public static void main(String[] args) {
+        Scanner scanner = new Scanner(System.in);
+        Random random = new Random();
+        
+        int secretNumber = random.nextInt(100) + 1;
+        int attempts = 0;
+        boolean hasWon = false;
+        
+        System.out.println("Welcome to the Guessing Game!");
+        System.out.println("I'm thinking of a number between 1 and 100.");
+        
+        while (!hasWon && attempts < 7) {
+            System.out.print("Enter your guess: ");
+            int guess = scanner.nextInt();
+            attempts++;
+            
+            if (guess == secretNumber) {
+                hasWon = true;
+                System.out.println("Congratulations! You won in " + attempts + " attempts!");
+            } else if (guess < secretNumber) {
+                System.out.println("Too low! Try again.");
+            } else {
+                System.out.println("Too high! Try again.");
+            }
+        }
+        
+        if (!hasWon) {
+            System.out.println("Game over! The number was " + secretNumber);
+        }
+    }
+}
+```
+
+**C# Version:**
+```csharp
+using System;
+
+class GuessingGame 
+{
+    static void Main(string[] args) 
+    {
+        Random random = new Random();
+        
+        int secretNumber = random.Next(1, 101);
+        int attempts = 0;
+        bool hasWon = false;
+        
+        Console.WriteLine("Welcome to the Guessing Game!");
+        Console.WriteLine("I'm thinking of a number between 1 and 100.");
+        
+        while (!hasWon && attempts < 7) 
+        {
+            Console.Write("Enter your guess: ");
+            if (int.TryParse(Console.ReadLine(), out int guess)) 
+            {
+                attempts++;
+                
+                if (guess == secretNumber) 
+                {
+                    hasWon = true;
+                    Console.WriteLine($"Congratulations! You won in {attempts} attempts!");
+                } 
+                else if (guess < secretNumber) 
+                {
+                    Console.WriteLine("Too low! Try again.");
+                } 
+                else 
+                {
+                    Console.WriteLine("Too high! Try again.");
+                }
+            } 
+            else 
+            {
+                Console.WriteLine("Please enter a valid number.");
+            }
+        }
+        
+        if (!hasWon) 
+        {
+            Console.WriteLine($"Game over! The number was {secretNumber}");
+        }
+        
+        Console.WriteLine("Press any key to exit...");
+        Console.ReadKey();
+    }
+}
+```
+
+## 📝 **Summary of Key Conversions**
+
+| Java | C# | Purpose |
+|------|----|---------| 
+| `System.out.println()` | `Console.WriteLine()` | Output |
+| `Scanner` | `Console.ReadLine()` | Input |
+| `import` | `using` | Namespaces |
+| `package` | `namespace` | Code organization |
+| `extends` | `:` (inheritance) | Inheritance |
+| `implements` | `:` (interface) | Interface implementation |
+| `String` | `string` | String type |
+| `int.parseInt()` | `int.Parse()` or `int.TryParse()` | String to int |
+| `Math.random()` | `Random.Next()` | Random numbers |
+| `Arrays.sort()` | `Array.Sort()` | Array sorting |
+
+This guide provides practical examples for converting Java concepts to C#. The syntax is very similar, making the transition relatively smooth for most programming concepts.
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diff --git a/JAVA_TO_C_EXAMPLES.md b/JAVA_TO_C_EXAMPLES.md
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+# Java to C Conversion Examples
+
+This document provides concrete examples of converting Java code from the assignments to C equivalents. Note that C is a procedural language, so object-oriented concepts need to be adapted using structures and function pointers.
+
+## 🔄 **Basic Syntax Conversions**
+
+### 1. Hello World & Basic Output
+
+**Java (JavaIntroduction):**
+```java
+public class Main {
+    public static void main(String[] args) {
+        System.out.println("Hello World!");
+        System.out.println("Welcome to Java Programming");
+    }
+}
+```
+
+**C Equivalent:**
+```c
+#include <stdio.h>
+
+int main() {
+    printf("Hello World!\n");
+    printf("Welcome to C Programming\n");
+    return 0;
+}
+```
+
+### 2. User Input & Variables
+
+**Java (JavaBasics):**
+```java
+import java.util.Scanner;
+
+class Main {
+    public static void main(String[] args) {
+        Scanner myObj = new Scanner(System.in);
+        System.out.println("Enter your name:");
+        String userName = myObj.nextLine();
+        
+        String output = userName.substring(0, 1).toUpperCase() + userName.substring(1);
+        System.out.println("Hello " + output);
+    }
+}
+```
+
+**C Equivalent:**
+```c
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+
+int main() {
+    char userName[100];
+    char output[100];
+    
+    printf("Enter your name:\n");
+    fgets(userName, sizeof(userName), stdin);
+    
+    // Remove newline character
+    userName[strcspn(userName, "\n")] = 0;
+    
+    // Copy string and capitalize first character
+    strcpy(output, userName);
+    output[0] = toupper(output[0]);
+    
+    printf("Hello %s\n", output);
+    return 0;
+}
+```
+
+### 3. Loops & Mathematical Operations
+
+**Java (Factorial):**
+```java
+import java.util.Scanner;
+
+class Main {
+    public static void main(String[] args) {
+        int num;
+        long factorial = 1;
+        Scanner input = new Scanner(System.in);
+        
+        System.out.println("Enter a number:");
+        num = input.nextInt();
+        
+        for(int i = 1; i <= num; ++i) {
+            factorial *= i;
+        }
+        System.out.printf("Factorial of %d = %d", num, factorial);
+    }
+}
+```
+
+**C Equivalent:**
+```c
+#include <stdio.h>
+
+int main() {
+    int num;
+    long long factorial = 1;
+    
+    printf("Enter a number:\n");
+    scanf("%d", &num);
+    
+    for(int i = 1; i <= num; ++i) {
+        factorial *= i;
+    }
+    
+    printf("Factorial of %d = %lld\n", num, factorial);
+    return 0;
+}
+```
+
+### 4. Random Numbers
+
+**Java (RandomNum):**
+```java
+import java.util.Scanner;
+
+class Main {
+    public static void main(String args[]) {
+        int min, max;
+        Scanner input = new Scanner(System.in);
+        
+        System.out.println("Enter minimum value: ");
+        min = input.nextInt();
+        System.out.println("Enter maximum value: ");
+        max = input.nextInt();
+        
+        int random_int = (int) Math.floor(Math.random() * (max - min + 1) + min);
+        System.out.println("Random value: " + random_int);
+    }
+}
+```
+
+**C Equivalent:**
+```c
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+
+int main() {
+    int min, max;
+    
+    // Seed the random number generator
+    srand(time(NULL));
+    
+    printf("Enter minimum value: \n");
+    scanf("%d", &min);
+    printf("Enter maximum value: \n");
+    scanf("%d", &max);
+    
+    int random_int = rand() % (max - min + 1) + min;
+    printf("Random value: %d\n", random_int);
+    
+    return 0;
+}
+```
+
+### 5. Functions and Parameter Passing
+
+**Java (Conversions - Temperature):**
+```java
+class Main {
+    public static double celsiusToFahrenheit(double celsius) {
+        return (celsius * 9.0 / 5.0) + 32.0;
+    }
+    
+    public static void main(String[] args) {
+        double temp = 25.0;
+        double fahrenheit = celsiusToFahrenheit(temp);
+        System.out.printf("%.2f°C = %.2f°F", temp, fahrenheit);
+    }
+}
+```
+
+**C Equivalent:**
+```c
+#include <stdio.h>
+
+double celsiusToFahrenheit(double celsius) {
+    return (celsius * 9.0 / 5.0) + 32.0;
+}
+
+int main() {
+    double temp = 25.0;
+    double fahrenheit = celsiusToFahrenheit(temp);
+    printf("%.2f°C = %.2f°F\n", temp, fahrenheit);
+    return 0;
+}
+```
+
+## 🎯 **Simulating Object-Oriented Concepts in C**
+
+### 6. Basic "Class" Using Structures
+
+**Java (ClassesForRealWorldObject):**
+```java
+class Body {
+    private int legs;
+    private int arms;
+    
+    public Body() {
+        this.legs = 2;
+        this.arms = 2;
+    }
+    
+    public void running() {
+        System.out.println("I am running using my " + legs + " legs.");
+    }
+    
+    public void training() {
+        System.out.println("I train my " + arms + " arms.");
+    }
+}
+```
+
+**C Equivalent (Using Structures and Functions):**
+```c
+#include <stdio.h>
+#include <stdlib.h>
+
+// Structure to represent a Body "class"
+typedef struct {
+    int legs;
+    int arms;
+} Body;
+
+// "Constructor" function
+Body* createBody() {
+    Body* body = (Body*)malloc(sizeof(Body));
+    body->legs = 2;
+    body->arms = 2;
+    return body;
+}
+
+// "Method" functions
+void running(Body* body) {
+    printf("I am running using my %d legs.\n", body->legs);
+}
+
+void training(Body* body) {
+    printf("I train my %d arms.\n", body->arms);
+}
+
+// "Destructor" function
+void destroyBody(Body* body) {
+    free(body);
+}
+
+int main() {
+    Body* person = createBody();
+    
+    running(person);
+    training(person);
+    
+    destroyBody(person);
+    return 0;
+}
+```
+
+### 7. Advanced "OOP" with Function Pointers
+
+**Java (Simple Game Interface):**
+```java
+abstract class Game {
+    protected String name;
+    
+    public Game(String name) {
+        this.name = name;
+    }
+    
+    public abstract void play();
+    public abstract void stop();
+}
+
+class NumberGame extends Game {
+    public NumberGame() {
+        super("Number Game");
+    }
+    
+    public void play() {
+        System.out.println("Playing " + name);
+    }
+    
+    public void stop() {
+        System.out.println("Stopping " + name);
+    }
+}
+```
+
+**C Equivalent (Using Function Pointers):**
+```c
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+// Forward declarations
+typedef struct Game Game;
+
+// Function pointer types for "virtual methods"
+typedef void (*PlayFunction)(Game* self);
+typedef void (*StopFunction)(Game* self);
+
+// Base "class" structure
+typedef struct Game {
+    char name[50];
+    PlayFunction play;
+    StopFunction stop;
+} Game;
+
+// Base constructor
+void initGame(Game* game, const char* name, PlayFunction play, StopFunction stop) {
+    strncpy(game->name, name, sizeof(game->name) - 1);
+    game->name[sizeof(game->name) - 1] = '\0';
+    game->play = play;
+    game->stop = stop;
+}
+
+// NumberGame specific implementations
+void numberGamePlay(Game* self) {
+    printf("Playing %s\n", self->name);
+}
+
+void numberGameStop(Game* self) {
+    printf("Stopping %s\n", self->name);
+}
+
+// NumberGame constructor
+Game* createNumberGame() {
+    Game* game = (Game*)malloc(sizeof(Game));
+    initGame(game, "Number Game", numberGamePlay, numberGameStop);
+    return game;
+}
+
+int main() {
+    Game* game = createNumberGame();
+    
+    // Call "methods" through function pointers
+    game->play(game);
+    game->stop(game);
+    
+    free(game);
+    return 0;
+}
+```
+
+## 📊 **Array and String Operations**
+
+### 8. Array Processing
+
+**Java (Finding Second Largest):**
+```java
+public class Main {
+    public static void main(String[] args) {
+        int[] array = {12, 35, 1, 10, 34, 1};
+        int n = array.length;
+        int largest = Integer.MIN_VALUE;
+        int secondLargest = Integer.MIN_VALUE;
+        
+        for (int i = 0; i < n; i++) {
+            if (array[i] > largest) {
+                secondLargest = largest;
+                largest = array[i];
+            } else if (array[i] < largest && array[i] > secondLargest) {
+                secondLargest = array[i];
+            }
+        }
+        
+        System.out.printf("Largest: %d, Second Largest: %d", largest, secondLargest);
+    }
+}
+```
+
+**C Equivalent:**
+```c
+#include <stdio.h>
+#include <limits.h>
+
+int main() {
+    int array[] = {12, 35, 1, 10, 34, 1};
+    int n = sizeof(array) / sizeof(array[0]);
+    int largest = INT_MIN;
+    int secondLargest = INT_MIN;
+    
+    for (int i = 0; i < n; i++) {
+        if (array[i] > largest) {
+            secondLargest = largest;
+            largest = array[i];
+        } else if (array[i] < largest && array[i] > secondLargest) {
+            secondLargest = array[i];
+        }
+    }
+    
+    printf("Largest: %d, Second Largest: %d\n", largest, secondLargest);
+    return 0;
+}
+```
+
+### 9. String Algorithms (ROT13 Cipher)
+
+**Java (ROT13Cipher - Simplified):**
+```java
+class Main {
+    static String encipher(String text) {
+        String result = "";
+        
+        for (char c : text.toCharArray()) {
+            if (c >= 'a' && c <= 'z') {
+                result += (char)((c - 'a' + 13) % 26 + 'a');
+            } else if (c >= 'A' && c <= 'Z') {
+                result += (char)((c - 'A' + 13) % 26 + 'A');
+            } else {
+                result += c;
+            }
+        }
+        return result;
+    }
+    
+    public static void main(String[] args) {
+        String text = "Hello World";
+        String encrypted = encipher(text);
+        System.out.println("Encrypted: " + encrypted);
+    }
+}
+```
+
+**C Equivalent:**
+```c
+#include <stdio.h>
+#include <string.h>
+
+void encipher(char* text, char* result) {
+    int len = strlen(text);
+    int j = 0;
+    
+    for (int i = 0; i < len; i++) {
+        char c = text[i];
+        if (c >= 'a' && c <= 'z') {
+            result[j++] = ((c - 'a' + 13) % 26) + 'a';
+        } else if (c >= 'A' && c <= 'Z') {
+            result[j++] = ((c - 'A' + 13) % 26) + 'A';
+        } else {
+            result[j++] = c;
+        }
+    }
+    result[j] = '\0';  // Null terminate
+}
+
+int main() {
+    char text[] = "Hello World";
+    char encrypted[256];
+    
+    encipher(text, encrypted);
+    printf("Encrypted: %s\n", encrypted);
+    return 0;
+}
+```
+
+### 10. Dynamic Arrays and Memory Management
+
+**Java (Dynamic Array Operations):**
+```java
+import java.util.ArrayList;
+
+public class Main {
+    public static void main(String[] args) {
+        ArrayList<Integer> numbers = new ArrayList<>();
+        
+        // Add elements
+        numbers.add(10);
+        numbers.add(20);
+        numbers.add(30);
+        
+        // Print elements
+        for (int num : numbers) {
+            System.out.println(num);
+        }
+        
+        System.out.println("Size: " + numbers.size());
+    }
+}
+```
+
+**C Equivalent (Dynamic Array):**
+```c
+#include <stdio.h>
+#include <stdlib.h>
+
+typedef struct {
+    int* data;
+    int size;
+    int capacity;
+} DynamicArray;
+
+DynamicArray* createArray() {
+    DynamicArray* arr = (DynamicArray*)malloc(sizeof(DynamicArray));
+    arr->capacity = 2;
+    arr->size = 0;
+    arr->data = (int*)malloc(arr->capacity * sizeof(int));
+    return arr;
+}
+
+void addElement(DynamicArray* arr, int value) {
+    if (arr->size >= arr->capacity) {
+        arr->capacity *= 2;
+        arr->data = (int*)realloc(arr->data, arr->capacity * sizeof(int));
+    }
+    arr->data[arr->size++] = value;
+}
+
+void printArray(DynamicArray* arr) {
+    for (int i = 0; i < arr->size; i++) {
+        printf("%d\n", arr->data[i]);
+    }
+}
+
+void destroyArray(DynamicArray* arr) {
+    free(arr->data);
+    free(arr);
+}
+
+int main() {
+    DynamicArray* numbers = createArray();
+    
+    // Add elements
+    addElement(numbers, 10);
+    addElement(numbers, 20);
+    addElement(numbers, 30);
+    
+    // Print elements
+    printArray(numbers);
+    printf("Size: %d\n", numbers->size);
+    
+    destroyArray(numbers);
+    return 0;
+}
+```
+
+## 🎮 **Complete Example: Simple Guessing Game**
+
+**Java Version:**
+```java
+import java.util.Scanner;
+import java.util.Random;
+
+public class GuessingGame {
+    public static void main(String[] args) {
+        Scanner scanner = new Scanner(System.in);
+        Random random = new Random();
+        
+        int secretNumber = random.nextInt(100) + 1;
+        int attempts = 0;
+        boolean hasWon = false;
+        
+        System.out.println("Welcome to the Guessing Game!");
+        
+        while (!hasWon && attempts < 7) {
+            System.out.print("Enter your guess: ");
+            int guess = scanner.nextInt();
+            attempts++;
+            
+            if (guess == secretNumber) {
+                hasWon = true;
+                System.out.println("You won in " + attempts + " attempts!");
+            } else if (guess < secretNumber) {
+                System.out.println("Too low!");
+            } else {
+                System.out.println("Too high!");
+            }
+        }
+        
+        if (!hasWon) {
+            System.out.println("Game over! Number was " + secretNumber);
+        }
+    }
+}
+```
+
+**C Version:**
+```c
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <stdbool.h>
+
+int main() {
+    srand(time(NULL));
+    
+    int secretNumber = rand() % 100 + 1;
+    int attempts = 0;
+    bool hasWon = false;
+    int guess;
+    
+    printf("Welcome to the Guessing Game!\n");
+    printf("I'm thinking of a number between 1 and 100.\n");
+    
+    while (!hasWon && attempts < 7) {
+        printf("Enter your guess: ");
+        
+        // Input validation
+        if (scanf("%d", &guess) != 1) {
+            printf("Please enter a valid number.\n");
+            // Clear input buffer
+            while (getchar() != '\n');
+            continue;
+        }
+        
+        attempts++;
+        
+        if (guess == secretNumber) {
+            hasWon = true;
+            printf("Congratulations! You won in %d attempts!\n", attempts);
+        } else if (guess < secretNumber) {
+            printf("Too low! Try again.\n");
+        } else {
+            printf("Too high! Try again.\n");
+        }
+    }
+    
+    if (!hasWon) {
+        printf("Game over! The number was %d\n", secretNumber);
+    }
+    
+    return 0;
+}
+```
+
+## 🛠️ **Key C Concepts and Differences**
+
+### Memory Management
+**C requires manual memory management:**
+```c
+// Allocate memory
+int* numbers = (int*)malloc(10 * sizeof(int));
+
+// Use the memory
+numbers[0] = 42;
+
+// Free the memory when done
+free(numbers);
+```
+
+### String Handling
+**C strings are character arrays:**
+```c
+char str1[50] = "Hello";
+char str2[50];
+
+strcpy(str2, str1);           // Copy string
+strcat(str1, " World");       // Concatenate
+int len = strlen(str1);       // Get length
+int cmp = strcmp(str1, str2); // Compare strings
+```
+
+### Input/Output
+**C uses different functions for I/O:**
+```c
+printf("Hello %s, age %d\n", name, age);    // Formatted output
+scanf("%d", &number);                       // Formatted input
+fgets(buffer, size, stdin);                 // Safe string input
+```
+
+### Error Handling
+**C uses return values and errno:**
+```c
+FILE* file = fopen("data.txt", "r");
+if (file == NULL) {
+    perror("Error opening file");
+    return 1;
+}
+
+int result = someFunction();
+if (result != 0) {
+    printf("Function failed with code %d\n", result);
+}
+```
+
+## 📝 **Summary of Key Conversions**
+
+| Java | C | Purpose |
+|------|---|---------|
+| `System.out.println()` | `printf()` | Output |
+| `Scanner` | `scanf()`, `fgets()` | Input |
+| `String` | `char[]`, `char*` | Strings |
+| `new` | `malloc()` | Memory allocation |
+| Automatic GC | `free()` | Memory deallocation |
+| `try-catch` | Return codes, `errno` | Error handling |
+| Classes | `struct` + functions | Data structures |
+| Methods | Functions | Code organization |
+| Packages | Header files | Code organization |
+| `ArrayList` | Dynamic arrays (manual) | Collections |
+
+### Compilation and Execution
+**Java:**
+```bash
+javac Main.java
+java Main
+```
+
+**C:**
+```bash
+gcc -o program main.c
+./program
+```
+
+### Common C Libraries Needed
+```c
+#include <stdio.h>      // Input/output functions
+#include <stdlib.h>     // Memory allocation, utilities
+#include <string.h>     // String manipulation
+#include <math.h>       // Mathematical functions
+#include <time.h>       // Time and random functions
+#include <stdbool.h>    // Boolean type (C99+)
+#include <limits.h>     // Numeric limits
+```
+
+This guide demonstrates how Java concepts can be translated to C. While C is more verbose and requires manual memory management, it provides fine-grained control and teaches fundamental programming concepts that are abstracted away in higher-level languages like Java.
\ No newline at end of file
diff --git a/LEARNING_PROGRESSION_GUIDE.md b/LEARNING_PROGRESSION_GUIDE.md
new file mode 100644
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--- /dev/null
+++ b/LEARNING_PROGRESSION_GUIDE.md
@@ -0,0 +1,252 @@
+# Java to C#/C Learning Progression Guide
+
+This guide organizes the Java assignments in this repository from beginner to advanced levels, providing a structured learning path for converting these concepts to C# or C programming.
+
+## Overview
+
+This repository contains high school Computer Science assignments covering fundamental to advanced programming concepts. The assignments are organized here by difficulty level to create an optimal learning progression.
+
+---
+
+## 🟢 **BEGINNER LEVEL** (Start Here)
+*Focus: Basic syntax, variables, input/output, simple calculations*
+
+### 1. **JavaIntroduction** - Hello World & Basic Output
+- **Concepts**: Basic printing, string literals, method calls
+- **Java Topics**: `System.out.println()`, static methods, basic formatting
+- **C# Equivalent**: `Console.WriteLine()`, static methods
+- **C Equivalent**: `printf()`, function declarations
+
+### 2. **JavaBasics** - Input/Output & String Manipulation
+- **Concepts**: User input, variables, string operations, basic math
+- **Java Topics**: Scanner class, string methods, variable declarations
+- **C# Equivalent**: `Console.ReadLine()`, string methods, var declarations
+- **C Equivalent**: `scanf()`, string functions, variable declarations
+
+### 3. **SumOfFiveIntegers** - Variables & Loops
+- **Concepts**: Variables, while loops, basic arithmetic
+- **Java Topics**: `int` variables, `while` loop, Scanner input
+- **C# Equivalent**: `int` variables, `while` loop, `Console.ReadLine()`
+- **C Equivalent**: `int` variables, `while` loop, `scanf()`
+
+### 4. **RandomNum** - Math Functions & Loops
+- **Concepts**: Random numbers, Math class, for loops
+- **Java Topics**: `Math.random()`, `Math.floor()`, type casting
+- **C# Equivalent**: `Random` class, `Math.Floor()`, casting
+- **C Equivalent**: `rand()`, `srand()`, `floor()` function
+
+### 5. **MonthName** - Conditional Statements
+- **Concepts**: If-else statements, switch cases, string comparison
+- **Java Topics**: `if-else`, `switch`, string equality
+- **C# Equivalent**: `if-else`, `switch`, string comparison
+- **C Equivalent**: `if-else`, `switch`, `strcmp()`
+
+### 6. **Factorial** - Functions & Loops
+- **Concepts**: Mathematical calculations, for loops, functions
+- **Java Topics**: `for` loops, long data type, mathematical operations
+- **C# Equivalent**: `for` loops, `long` type, math operations
+- **C Equivalent**: `for` loops, `long long` type, math operations
+
+---
+
+## 🟡 **INTERMEDIATE LEVEL** 
+*Focus: Methods, arrays, basic algorithms, object-oriented basics*
+
+### 7. **PerfectSquare** - Mathematical Logic
+- **Concepts**: Mathematical problem solving, square root calculations
+- **Java Topics**: Math library, conditional logic, method creation
+- **C# Equivalent**: `Math` class, conditional statements, methods
+- **C Equivalent**: `math.h`, conditional statements, functions
+
+### 8. **GuessingGame** - Game Logic & Control Flow
+- **Concepts**: Game loops, random generation, user interaction
+- **Java Topics**: do-while loops, random numbers, input validation
+- **C# Equivalent**: do-while loops, Random class, input validation
+- **C Equivalent**: do-while loops, rand(), input validation
+
+### 9. **PairOfDice** - Multiple Object Simulation
+- **Concepts**: Simulation, probability, multiple random values
+- **Java Topics**: Multiple random generations, loops, formatting
+- **C# Equivalent**: Multiple Random calls, loops, string formatting
+- **C Equivalent**: Multiple rand() calls, loops, printf formatting
+
+### 10. **Conversions** - Unit Conversion & Functions
+- **Concepts**: Mathematical conversions, function organization
+- **Java Topics**: Method creation, parameter passing, return values
+- **C# Equivalent**: Method creation, parameters, return types
+- **C Equivalent**: Function creation, parameters, return values
+
+### 11. **CurrencyConverter** - Complex Calculations
+- **Concepts**: Real-world applications, decimal calculations
+- **Java Topics**: Double precision, mathematical operations, formatting
+- **C# Equivalent**: `double` type, math operations, string formatting
+- **C Equivalent**: `double` type, math operations, printf formatting
+
+### 12. **DistanceFormula** - Mathematical Formulas
+- **Concepts**: Complex mathematical calculations, coordinate geometry
+- **Java Topics**: Math.sqrt(), Math.pow(), coordinate calculations
+- **C# Equivalent**: Math.Sqrt(), Math.Pow(), calculations
+- **C Equivalent**: sqrt(), pow(), mathematical calculations
+
+### 13. **ClassesForRealWorldObject** - Introduction to OOP
+- **Concepts**: Basic classes, objects, methods, encapsulation
+- **Java Topics**: Class creation, constructors, instance methods
+- **C# Equivalent**: Class creation, constructors, instance methods
+- **C Equivalent**: Structures, function pointers (advanced concept)
+
+---
+
+## 🟠 **INTERMEDIATE-ADVANCED LEVEL**
+*Focus: Arrays, algorithms, data structures, advanced OOP*
+
+### 14. **FindSecondLargestElementInArray** - Array Algorithms
+- **Concepts**: Array traversal, comparison algorithms, finding extremes
+- **Java Topics**: Array iteration, comparison logic, algorithm implementation
+- **C# Equivalent**: Array iteration, LINQ methods, algorithm logic
+- **C Equivalent**: Array iteration, comparison logic, pointer arithmetic
+
+### 15. **FindSmallestAndSecondSmallestIntegerInArray** - Advanced Array Processing
+- **Concepts**: Multiple pass algorithms, array analysis
+- **Java Topics**: Array processing, multiple variable tracking
+- **C# Equivalent**: Array processing, variable management
+- **C Equivalent**: Array processing, multiple variable tracking
+
+### 16. **SortingArrayUsingDifferentWays** - Sorting Algorithms
+- **Concepts**: Different sorting techniques, algorithm comparison
+- **Java Topics**: Arrays.sort(), custom sorting logic
+- **C# Equivalent**: Array.Sort(), custom sorting, LINQ OrderBy
+- **C Equivalent**: qsort(), custom sorting functions
+
+### 17. **NumericAndStringArray** - Mixed Data Type Handling
+- **Concepts**: Different data types, array sorting, type handling
+- **Java Topics**: String arrays, numeric arrays, Arrays.sort()
+- **C# Equivalent**: String arrays, numeric arrays, Array.Sort()
+- **C Equivalent**: Character arrays, numeric arrays, sorting functions
+
+### 18. **ArrayAndStringTask1** - Complex Array Operations
+- **Concepts**: Multiple array algorithms, comprehensive data processing
+- **Java Topics**: Complex array manipulation, multiple algorithm implementation
+- **C# Equivalent**: Complex array operations, LINQ usage
+- **C Equivalent**: Complex array operations, multiple algorithm implementation
+
+---
+
+## 🔴 **ADVANCED LEVEL**
+*Focus: Advanced OOP, algorithms, data structures, GUI*
+
+### 19. **GuessingGameInOOP** - Advanced Object-Oriented Programming
+- **Concepts**: Inheritance, abstract classes, polymorphism, design patterns
+- **Java Topics**: Abstract classes, inheritance, method overriding, collections
+- **C# Equivalent**: Abstract classes, inheritance, method overriding, collections
+- **C Equivalent**: Function pointers, structures (simulate OOP concepts)
+
+### 20. **ROT13Cipher** - String Algorithms & Encryption
+- **Concepts**: String manipulation, encryption algorithms, character processing
+- **Java Topics**: String processing, character manipulation, algorithm implementation
+- **C# Equivalent**: String processing, char manipulation, algorithm logic
+- **C Equivalent**: Character arrays, ASCII manipulation, algorithm implementation
+
+### 21. **LinearAndQuadraticEquationCalculator** - Complex Mathematical Processing
+- **Concepts**: String parsing, mathematical formula implementation, error handling
+- **Java Topics**: String parsing, mathematical calculations, exception handling
+- **C# Equivalent**: String parsing, Math class, exception handling
+- **C Equivalent**: String parsing, mathematical functions, error handling
+
+### 22. **CalculateSumOfGeometricSequence** - Advanced Mathematical Algorithms
+- **Concepts**: Mathematical sequences, iterative calculations, formula implementation
+- **Java Topics**: Mathematical series, iterative processing, precision handling
+- **C# Equivalent**: Mathematical calculations, iteration, decimal precision
+- **C Equivalent**: Mathematical calculations, iteration, floating-point precision
+
+### 23. **FinalProjet** - GUI Application Development
+- **Concepts**: Graphical user interfaces, event handling, advanced OOP integration
+- **Java Topics**: Swing components, event listeners, custom painting, file I/O
+- **C# Equivalent**: WinForms/WPF, event handling, custom drawing, file operations
+- **C Equivalent**: GUI libraries (GTK, Qt), event handling, graphics programming
+
+---
+
+## 🎯 **Recommended Learning Order**
+
+### Phase 1: Foundation (Weeks 1-3)
+1. JavaIntroduction
+2. JavaBasics  
+3. SumOfFiveIntegers
+4. RandomNum
+5. MonthName
+6. Factorial
+
+### Phase 2: Core Programming (Weeks 4-6)
+7. PerfectSquare
+8. GuessingGame
+9. PairOfDice
+10. Conversions
+11. CurrencyConverter
+12. DistanceFormula
+
+### Phase 3: Object-Oriented Basics (Weeks 7-8)
+13. ClassesForRealWorldObject
+
+### Phase 4: Data Structures & Algorithms (Weeks 9-12)
+14. FindSecondLargestElementInArray
+15. FindSmallestAndSecondSmallestIntegerInArray
+16. SortingArrayUsingDifferentWays
+17. NumericAndStringArray
+18. ArrayAndStringTask1
+
+### Phase 5: Advanced Concepts (Weeks 13-16)
+19. GuessingGameInOOP
+20. ROT13Cipher
+21. LinearAndQuadraticEquationCalculator
+22. CalculateSumOfGeometricSequence
+23. FinalProjet
+
+---
+
+## 💡 **Key Learning Tips**
+
+### For C# Conversion:
+- **Syntax Similarities**: C# and Java have very similar syntax
+- **Main Differences**: 
+  - `Console.WriteLine()` vs `System.out.println()`
+  - `using` statements vs `import`
+  - Properties vs getter/setter methods
+  - LINQ for advanced data operations
+
+### For C Conversion:
+- **Key Differences**:
+  - Manual memory management
+  - Pointers instead of references
+  - Function-based instead of object-oriented
+  - Manual string handling
+  - Different input/output functions
+
+### General Progression Strategy:
+1. **Start Simple**: Master basic syntax and concepts first
+2. **Build Gradually**: Each level builds on previous knowledge
+3. **Practice Conversion**: Try converting each Java program to your target language
+4. **Understand Concepts**: Focus on understanding the logic, not just translating syntax
+5. **Add Features**: Once you convert a program, try adding new features
+
+---
+
+## 📚 **Additional Resources**
+
+### For C# Learning:
+- Microsoft's C# documentation
+- .NET Framework/Core documentation
+- Visual Studio IDE features
+
+### For C Learning:
+- GCC compiler usage
+- Memory management concepts
+- Standard library functions
+- Debugging tools (GDB)
+
+### Development Tools:
+- **C#**: Visual Studio, Visual Studio Code, JetBrains Rider
+- **C**: GCC, Visual Studio Code, Code::Blocks, CLion
+
+---
+
+*This progression guide helps you systematically learn programming concepts while transitioning from Java to C# or C. Each assignment builds foundational knowledge for the next level.*
\ No newline at end of file
diff --git a/QUICK_REFERENCE_GUIDE.md b/QUICK_REFERENCE_GUIDE.md
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--- /dev/null
+++ b/QUICK_REFERENCE_GUIDE.md
@@ -0,0 +1,275 @@
+# Quick Reference: Java → C# → C Syntax Comparison
+
+This quick reference guide helps you quickly translate between Java, C#, and C syntax for common programming tasks.
+
+## 📋 **Basic Program Structure**
+
+| Concept | Java | C# | C |
+|---------|------|----|----|
+| **Program Entry** | `public static void main(String[] args)` | `static void Main(string[] args)` | `int main()` |
+| **Imports/Includes** | `import java.util.*;` | `using System;` | `#include <stdio.h>` |
+| **Package/Namespace** | `package mypackage;` | `namespace MyNamespace` | N/A (header files) |
+
+## 🔤 **Data Types**
+
+| Type | Java | C# | C |
+|------|------|----|----|
+| **Integer** | `int x = 5;` | `int x = 5;` | `int x = 5;` |
+| **Long** | `long x = 5L;` | `long x = 5L;` | `long long x = 5LL;` |
+| **Float** | `float x = 5.0f;` | `float x = 5.0f;` | `float x = 5.0f;` |
+| **Double** | `double x = 5.0;` | `double x = 5.0;` | `double x = 5.0;` |
+| **String** | `String s = "hello";` | `string s = "hello";` | `char s[] = "hello";` |
+| **Boolean** | `boolean b = true;` | `bool b = true;` | `bool b = true;` (C99+) |
+| **Character** | `char c = 'a';` | `char c = 'a';` | `char c = 'a';` |
+
+## 📥📤 **Input/Output**
+
+| Operation | Java | C# | C |
+|-----------|------|----|----|
+| **Print** | `System.out.println("Hello");` | `Console.WriteLine("Hello");` | `printf("Hello\n");` |
+| **Print with format** | `System.out.printf("%d", x);` | `Console.WriteLine($"Value: {x}");` | `printf("%d", x);` |
+| **Read string** | `Scanner.nextLine()` | `Console.ReadLine()` | `fgets(str, size, stdin)` |
+| **Read integer** | `Scanner.nextInt()` | `int.Parse(Console.ReadLine())` | `scanf("%d", &x)` |
+
+## 🔄 **Control Structures**
+
+### If Statements
+| Language | Syntax |
+|----------|--------|
+| **Java** | `if (condition) { } else if (condition) { } else { }` |
+| **C#** | `if (condition) { } else if (condition) { } else { }` |
+| **C** | `if (condition) { } else if (condition) { } else { }` |
+
+### Loops
+| Type | Java | C# | C |
+|------|------|----|----|
+| **For loop** | `for (int i = 0; i < n; i++)` | `for (int i = 0; i < n; i++)` | `for (int i = 0; i < n; i++)` |
+| **While loop** | `while (condition)` | `while (condition)` | `while (condition)` |
+| **For-each** | `for (int x : array)` | `foreach (int x in array)` | N/A (manual loop) |
+
+## 📚 **Arrays**
+
+| Operation | Java | C# | C |
+|-----------|------|----|----|
+| **Declaration** | `int[] arr = new int[5];` | `int[] arr = new int[5];` | `int arr[5];` |
+| **Initialize** | `int[] arr = {1,2,3};` | `int[] arr = {1,2,3};` | `int arr[] = {1,2,3};` |
+| **Length** | `arr.length` | `arr.Length` | N/A (track manually) |
+| **Access** | `arr[0]` | `arr[0]` | `arr[0]` |
+| **Sort** | `Arrays.sort(arr)` | `Array.Sort(arr)` | `qsort()` (with compare function) |
+
+## 🔧 **Functions/Methods**
+
+| Concept | Java | C# | C |
+|---------|------|----|----|
+| **Basic function** | `public static int add(int a, int b)` | `public static int Add(int a, int b)` | `int add(int a, int b)` |
+| **Call function** | `int result = add(5, 3);` | `int result = Add(5, 3);` | `int result = add(5, 3);` |
+| **Return** | `return value;` | `return value;` | `return value;` |
+
+## 🎯 **Object-Oriented Programming**
+
+### Class Definition
+**Java:**
+```java
+public class Person {
+    private String name;
+    
+    public Person(String name) {
+        this.name = name;
+    }
+    
+    public String getName() {
+        return name;
+    }
+}
+```
+
+**C#:**
+```csharp
+public class Person 
+{
+    private string name;
+    
+    public Person(string name) 
+    {
+        this.name = name;
+    }
+    
+    public string Name { get { return name; } }
+    // Or: public string Name { get; set; }
+}
+```
+
+**C (Struct simulation):**
+```c
+typedef struct {
+    char name[50];
+} Person;
+
+Person createPerson(const char* name) {
+    Person p;
+    strcpy(p.name, name);
+    return p;
+}
+
+char* getName(Person* p) {
+    return p->name;
+}
+```
+
+## 🔗 **String Operations**
+
+| Operation | Java | C# | C |
+|-----------|------|----|----|
+| **Concatenation** | `str1 + str2` | `str1 + str2` | `strcat(dest, src)` |
+| **Length** | `str.length()` | `str.Length` | `strlen(str)` |
+| **Compare** | `str1.equals(str2)` | `str1 == str2` | `strcmp(str1, str2) == 0` |
+| **Substring** | `str.substring(start, end)` | `str.Substring(start, length)` | Manual (copy characters) |
+| **To uppercase** | `str.toUpperCase()` | `str.ToUpper()` | `toupper()` (character by character) |
+
+## 🎲 **Random Numbers**
+
+| Language | Code |
+|----------|------|
+| **Java** | `Random rand = new Random(); int x = rand.nextInt(10);` |
+| **C#** | `Random rand = new Random(); int x = rand.Next(10);` |
+| **C** | `srand(time(NULL)); int x = rand() % 10;` |
+
+## 💾 **Memory Management**
+
+| Operation | Java | C# | C |
+|-----------|------|----|----|
+| **Allocate** | `new Type()` (automatic GC) | `new Type()` (automatic GC) | `malloc(sizeof(Type))` |
+| **Free** | Automatic | Automatic | `free(pointer)` |
+| **Array allocation** | `new int[size]` | `new int[size]` | `malloc(size * sizeof(int))` |
+
+## ❌ **Error Handling**
+
+| Method | Java | C# | C |
+|--------|------|----|----|
+| **Exceptions** | `try { } catch (Exception e) { }` | `try { } catch (Exception e) { }` | N/A |
+| **Return codes** | Not common | Not common | `if (function() != 0) { }` |
+| **Check null** | `if (obj != null)` | `if (obj != null)` | `if (ptr != NULL)` |
+
+## 📁 **File Operations**
+
+| Operation | Java | C# | C |
+|-----------|------|----|----|
+| **Open file** | `Scanner file = new Scanner(new File("file.txt"))` | `StreamReader file = new StreamReader("file.txt")` | `FILE* file = fopen("file.txt", "r")` |
+| **Read line** | `String line = file.nextLine()` | `string line = file.ReadLine()` | `fgets(buffer, size, file)` |
+| **Close file** | `file.close()` | `file.Close()` | `fclose(file)` |
+
+## 🔢 **Common Math Operations**
+
+| Operation | Java | C# | C |
+|-----------|------|----|----|
+| **Square root** | `Math.sqrt(x)` | `Math.Sqrt(x)` | `sqrt(x)` |
+| **Power** | `Math.pow(x, y)` | `Math.Pow(x, y)` | `pow(x, y)` |
+| **Absolute** | `Math.abs(x)` | `Math.Abs(x)` | `abs(x)` or `fabs(x)` |
+| **Min/Max** | `Math.min(a, b)` | `Math.Min(a, b)` | Manual: `(a < b) ? a : b` |
+
+## 🔄 **Type Conversion**
+
+| Conversion | Java | C# | C |
+|------------|------|----|----|
+| **String to int** | `Integer.parseInt(str)` | `int.Parse(str)` | `atoi(str)` |
+| **Int to string** | `Integer.toString(x)` | `x.ToString()` | `sprintf(str, "%d", x)` |
+| **Cast** | `(int) x` | `(int) x` | `(int) x` |
+
+## 📊 **Common Algorithms**
+
+### Finding Maximum in Array
+**Java:**
+```java
+int max = Integer.MIN_VALUE;
+for (int x : array) {
+    if (x > max) max = x;
+}
+```
+
+**C#:**
+```csharp
+int max = int.MinValue;
+foreach (int x in array) {
+    if (x > max) max = x;
+}
+// Or: int max = array.Max();
+```
+
+**C:**
+```c
+int max = INT_MIN;
+for (int i = 0; i < size; i++) {
+    if (array[i] > max) max = array[i];
+}
+```
+
+### Sorting Array
+**Java:**
+```java
+Arrays.sort(array);
+```
+
+**C#:**
+```csharp
+Array.Sort(array);
+// Or: array = array.OrderBy(x => x).ToArray();
+```
+
+**C:**
+```c
+qsort(array, size, sizeof(int), compare_function);
+```
+
+## 🚀 **Quick Start Templates**
+
+### Java Template
+```java
+import java.util.Scanner;
+
+public class Main {
+    public static void main(String[] args) {
+        Scanner scanner = new Scanner(System.in);
+        // Your code here
+        scanner.close();
+    }
+}
+```
+
+### C# Template
+```csharp
+using System;
+
+class Program 
+{
+    static void Main(string[] args) 
+    {
+        // Your code here
+        Console.ReadKey(); // Pause before exit
+    }
+}
+```
+
+### C Template
+```c
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+int main() 
+{
+    // Your code here
+    return 0;
+}
+```
+
+## 🎯 **Compilation & Execution**
+
+| Language | Compile | Run |
+|----------|---------|-----|
+| **Java** | `javac Program.java` | `java Program` |
+| **C#** | `csc Program.cs` or `dotnet build` | `Program.exe` or `dotnet run` |
+| **C** | `gcc -o program program.c` | `./program` |
+
+---
+
+*This quick reference covers the most commonly used syntax differences between Java, C#, and C. Use this as a handy guide while converting programs between languages.*
\ No newline at end of file
diff --git a/README.md b/README.md
index f21f63a..fdb934b 100644
--- a/README.md
+++ b/README.md
@@ -4,4 +4,14 @@
 From basic console apps to interactive games, this repo documents my early journey into programming with Java, Python, and web technologies.
 Each project reflects skills I was learning at the time — including logic building, loops, functions, file I/O, and UI basics.
 
-This archive isn't just about the code — it’s about growth, curiosity, and the start of my path into computer science.
\ No newline at end of file
+This archive isn't just about the code — it’s about growth, curiosity, and the start of my path into computer science.
+## 📚 Learning Resources
+
+Want to learn these concepts in C# or C? Check out these comprehensive guides:
+
+- **[📋 Learning Progression Guide](LEARNING_PROGRESSION_GUIDE.md)** - Organized curriculum from beginner to advanced
+- **[🔷 Java to C# Examples](JAVA_TO_CSHARP_EXAMPLES.md)** - Complete code conversions and explanations
+- **[⚡ Java to C Examples](JAVA_TO_C_EXAMPLES.md)** - Low-level programming concepts and translations
+- **[📖 Quick Reference Guide](QUICK_REFERENCE_GUIDE.md)** - Side-by-side syntax comparison
+
+These guides provide a structured learning path to understand the Java assignments and convert them to other languages, progressing from basic concepts to advanced topics.