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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Learn Java & Python Basics</title>
    <script src="https://cdn.tailwindcss.com"></script>
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    <style>
        .code-editor {
            font-family: 'Courier New', Courier, monospace;
            background-color: #2d2d2d;
            color: #f8f8f2;
            padding: 1rem;
            border-radius: 0.5rem;
            tab-size: 2;
        }
        .tab-button {
            transition: all 0.2s ease;
        }
        .tab-button.active {
            border-bottom: 3px solid #3b82f6;
            font-weight: 600;
        }
        .exercise-card {
            transition: transform 0.2s ease;
        }
        .exercise-card:hover {
            transform: translateY(-2px);
        }
        .language-icon {
            width: 80px;
            height: 80px;
        }
    </style>
</head>
<body class="bg-gray-50 min-h-screen">
    <div class="container mx-auto px-4 py-8">
        <!-- Header with Theme Image -->
        <header class="text-center mb-12 relative">
            <div class="absolute inset-0 bg-gradient-to-r from-blue-500 to-purple-600 rounded-2xl opacity-20 h-64"></div>
            <div class="relative z-10">
                <h1 class="text-5xl font-bold text-gray-800 mb-6 pt-8">Learn Java & Python Basics</h1>
                <p class="text-xl text-gray-600 max-w-3xl mx-auto mb-8">
                    Master the fundamentals of two powerful programming languages through interactive lessons
                </p>
                <div class="flex justify-center space-x-12 mb-8">
                    <div class="text-center">
                        <img src="https://cdn-icons-png.flaticon.com/512/226/226777.png" alt="Java" class="language-icon mx-auto mb-2">
                        <span class="font-medium text-gray-700">Java</span>
                    </div>
                    <div class="text-center">
                        <img src="https://cdn-icons-png.flaticon.com/512/5968/5968350.png" alt="Python" class="language-icon mx-auto mb-2">
                        <span class="font-medium text-gray-700">Python</span>
                    </div>
                </div>
            </div>
        </header>

        <!-- Learning Path Navigation -->
        <section class="mb-16 bg-white rounded-xl shadow-lg overflow-hidden">
            <div class="p-6">
                <h2 class="text-2xl font-semibold text-gray-800 mb-6 flex items-center">
                    <i class="fas fa-road mr-3 text-blue-500"></i>
                    Learning Path
                </h2>
                
                <div class="grid grid-cols-1 md:grid-cols-2 gap-8">
                    <!-- Java Path -->
                    <div class="border-l-4 border-blue-500 pl-6">
                        <h3 class="text-xl font-medium text-gray-800 mb-4 flex items-center">
                            <img src="https://cdn-icons-png.flaticon.com/512/226/226777.png" alt="Java" class="w-6 h-6 mr-2">
                            Java Fundamentals
                        </h3>
                        <ol class="space-y-4">
                            <li class="flex items-start">
                                <span class="flex-shrink-0 bg-blue-500 text-white rounded-full w-6 h-6 flex items-center justify-center mr-3">1</span>
                                <div>
                                    <h4 class="font-medium text-gray-800">Variables & Data Types</h4>
                                    <p class="text-sm text-gray-600">Learn primitive types, declarations, and type casting</p>
                                </div>
                            </li>
                            <li class="flex items-start">
                                <span class="flex-shrink-0 bg-blue-500 text-white rounded-full w-6 h-6 flex items-center justify-center mr-3">2</span>
                                <div>
                                    <h4 class="font-medium text-gray-800">Control Structures</h4>
                                    <p class="text-sm text-gray-600">Master if-else, switch, loops (for, while, do-while)</p>
                                </div>
                            </li>
                            <li class="flex items-start">
                                <span class="flex-shrink-0 bg-blue-500 text-white rounded-full w-6 h-6 flex items-center justify-center mr-3">3</span>
                                <div>
                                    <h4 class="font-medium text-gray-800">Methods & Classes</h4>
                                    <p class="text-sm text-gray-600">Understand OOP concepts, constructors, and methods</p>
                                </div>
                            </li>
                            <li class="flex items-start">
                                <span class="flex-shrink-0 bg-blue-500 text-white rounded-full w-6 h-6 flex items-center justify-center mr-3">4</span>
                                <div>
                                    <h4 class="font-medium text-gray-800">Arrays & Collections</h4>
                                    <p class="text-sm text-gray-600">Work with arrays, ArrayLists, and basic data structures</p>
                                </div>
                            </li>
                        </ol>
                    </div>
                    
                    <!-- Python Path -->
                    <div class="border-l-4 border-green-500 pl-6">
                        <h3 class="text-xl font-medium text-gray-800 mb-4 flex items-center">
                            <img src="https://cdn-icons-png.flaticon.com/512/5968/5968350.png" alt="Python" class="w-6 h-6 mr-2">
                            Python Fundamentals
                        </h3>
                        <ol class="space-y-4">
                            <li class="flex items-start">
                                <span class="flex-shrink-0 bg-green-500 text-white rounded-full w-6 h-6 flex items-center justify-center mr-3">1</span>
                                <div>
                                    <h4 class="font-medium text-gray-800">Variables & Data Types</h4>
                                    <p class="text-sm text-gray-600">Learn dynamic typing, numbers, strings, and lists</p>
                                </div>
                            </li>
                            <li class="flex items-start">
                                <span class="flex-shrink-0 bg-green-500 text-white rounded-full w-6 h-6 flex items-center justify-center mr-3">2</span>
                                <div>
                                    <h4 class="font-medium text-gray-800">Control Flow</h4>
                                    <p class="text-sm text-gray-600">Master if-elif-else, loops (for, while), and range()</p>
                                </div>
                            </li>
                            <li class="flex items-start">
                                <span class="flex-shrink-0 bg-green-500 text-white rounded-full w-6 h-6 flex items-center justify-center mr-3">3</span>
                                <div>
                                    <h4 class="font-medium text-gray-800">Functions</h4>
                                    <p class="text-sm text-gray-600">Define functions, parameters, return values, and scope</p>
                                </div>
                            </li>
                            <li class="flex items-start">
                                <span class="flex-shrink-0 bg-green-500 text-white rounded-full w-6 h-6 flex items-center justify-center mr-3">4</span>
                                <div>
                                    <h4 class="font-medium text-gray-800">Lists & Dictionaries</h4>
                                    <p class="text-sm text-gray-600">Work with sequences, list comprehensions, and dictionaries</p>
                                </div>
                            </li>
                        </ol>
                    </div>
                </div>
            </div>
        </section>

        <!-- Lesson 1: Variables & Data Types -->
        <section class="mb-16 bg-white rounded-xl shadow-lg overflow-hidden">
            <div class="p-6">
                <h2 class="text-2xl font-semibold text-gray-800 mb-6 flex items-center">
                    <i class="fas fa-cubes mr-3 text-blue-500"></i>
                    Lesson 1: Variables & Data Types
                </h2>
                
                <div class="grid grid-cols-1 md:grid-cols-2 gap-8 mb-8">
                    <div>
                        <h3 class="text-xl font-medium text-gray-800 mb-3">Java Variables</h3>
                        <p class="text-gray-600 mb-4">
                            Java is statically typed, meaning you must declare the variable type before using it.
                            Primitive types include <code class="bg-gray-100 px-1 rounded">int</code>, <code class="bg-gray-100 px-1 rounded">double</code>, 
                            <code class="bg-gray-100 px-1 rounded">boolean</code>, and <code class="bg-gray-100 px-1 rounded">char</code>.
                        </p>
                        <div class="code-editor mb-4">
                            <pre><code>// Variable declaration and initialization
int age = 25;
double price = 19.99;
boolean isJavaFun = true;
char grade = 'A';

// Constants (cannot be changed)
final double PI = 3.14159;</code></pre>
                        </div>
                    </div>
                    <div>
                        <h3 class="text-xl font-medium text-gray-800 mb-3">Python Variables</h3>
                        <p class="text-gray-600 mb-4">
                            Python is dynamically typed - you don't need to declare variable types.
                            Common types include <code class="bg-gray-100 px-1 rounded">int</code>, <code class="bg-gray-100 px-1 rounded">float</code>, 
                            <code class="bg-gray-100 px-1 rounded">bool</code>, <code class="bg-gray-100 px-1 rounded">str</code>, and <code class="bg-gray-100 px-1 rounded">list</code>.
                        </p>
                        <div class="code-editor mb-4">
                            <pre><code># Variable assignment
age = 25
price = 19.99
is_python_fun = True
grade = 'A'

# Constants (by convention, not enforced)
PI = 3.14159</code></pre>
                        </div>
                    </div>
                </div>
                
                <div class="bg-blue-50 p-6 rounded-lg border border-blue-100 mb-8">
                    <h3 class="text-lg font-medium text-blue-800 mb-3 flex items-center">
                        <i class="fas fa-lightbulb mr-2 text-blue-600"></i>
                        Key Differences
                    </h3>
                    <ul class="list-disc pl-5 text-gray-700 space-y-2">
                        <li><strong>Type Declaration:</strong> Java requires explicit type declaration, Python infers types</li>
                        <li><strong>Constants:</strong> Java has <code class="bg-blue-100 px-1 rounded">final</code> keyword, Python uses naming conventions (UPPER_CASE)</li>
                        <li><strong>Strings:</strong> Java uses double quotes, Python can use single or double quotes</li>
                        <li><strong>Boolean Values:</strong> Java uses <code class="bg-blue-100 px-1 rounded">true</code>/<code class="bg-blue-100 px-1 rounded">false</code>, Python uses <code class="bg-blue-100 px-1 rounded">True</code>/<code class="bg-blue-100 px-1 rounded">False</code></li>
                    </ul>
                </div>
                
                <!-- Interactive Exercise -->
                <div class="bg-white border border-gray-200 rounded-lg p-6 shadow-sm">
                    <h3 class="text-xl font-medium text-gray-800 mb-4 flex items-center">
                        <i class="fas fa-pencil-alt mr-3 text-green-500"></i>
                        Interactive Exercise
                    </h3>
                    
                    <div class="mb-6">
                        <div class="flex border-b border-gray-200 mb-4">
                            <button class="tab-button active px-4 py-2 text-blue-600" onclick="changeTab('exercise1', 'java')">
                                Java
                            </button>
                            <button class="tab-button px-4 py-2 text-green-600" onclick="changeTab('exercise1', 'python')">
                                Python
                            </button>
                        </div>
                        
                        <div id="exercise1-java" class="exercise-content">
                            <p class="text-gray-600 mb-4">
                                Fix the variable declarations in this Java code. There are 3 errors to correct.
                            </p>
                            <div class="code-editor mb-4">
                                <pre id="java-code" contenteditable="true">public class Main {
    public static void main(String[] args) {
        // Fix these variable declarations
        int count = "10";
        double average = 3.5
        boolean isCorrect = "true";
        char initial = A;
        
        System.out.println("Count: " + count);
    }
}</pre>
                            </div>
                            <button onclick="checkExercise('java')" class="bg-blue-600 text-white px-4 py-2 rounded-md hover:bg-blue-700 transition">
                                Check Solution
                            </button>
                            <div id="java-feedback" class="mt-3 hidden"></div>
                        </div>
                        
                        <div id="exercise1-python" class="exercise-content hidden">
                            <p class="text-gray-600 mb-4">
                                Complete the Python code to calculate the area of a rectangle. Use variables <code class="bg-gray-100 px-1 rounded">length</code> and <code class="bg-gray-100 px-1 rounded">width</code>.
                            </p>
                            <div class="code-editor mb-4">
                                <pre id="python-code" contenteditable="true"># Calculate rectangle area
length = 5
width = 3
# Your code here

print(f"The area is: {area}")</pre>
                            </div>
                            <button onclick="checkExercise('python')" class="bg-green-600 text-white px-4 py-2 rounded-md hover:bg-green-700 transition">
                                Check Solution
                            </button>
                            <div id="python-feedback" class="mt-3 hidden"></div>
                        </div>
                    </div>
                </div>
            </div>
        </section>

        <!-- Lesson 2: Control Structures -->
        <section class="mb-16 bg-white rounded-xl shadow-lg overflow-hidden">
            <div class="p-6">
                <h2 class="text-2xl font-semibold text-gray-800 mb-6 flex items-center">
                    <i class="fas fa-code-branch mr-3 text-blue-500"></i>
                    Lesson 2: Control Structures
                </h2>
                
                <div class="grid grid-cols-1 md:grid-cols-2 gap-8 mb-8">
                    <div>
                        <h3 class="text-xl font-medium text-gray-800 mb-3">Java Control Structures</h3>
                        <p class="text-gray-600 mb-4">
                            Java uses traditional C-style control structures with curly braces <code class="bg-gray-100 px-1 rounded">{}</code>.
                        </p>
                        <div class="code-editor mb-4">
                            <pre><code>// If-else statement
int score = 85;
if (score >= 90) {
    System.out.println("A");
} else if (score >= 80) {
    System.out.println("B");
} else {
    System.out.println("C");
}

// For loop
for (int i = 0; i < 5; i++) {
    System.out.println(i);
}

// While loop
int count = 0;
while (count < 3) {
    System.out.println(count);
    count++;
}</code></pre>
                        </div>
                    </div>
                    <div>
                        <h3 class="text-xl font-medium text-gray-800 mb-3">Python Control Structures</h3>
                        <p class="text-gray-600 mb-4">
                            Python uses indentation (whitespace) to define code blocks instead of curly braces.
                        </p>
                        <div class="code-editor mb-4">
                            <pre><code># If-elif-else statement
score = 85
if score >= 90:
    print("A")
elif score >= 80:
    print("B")
else:
    print("C")

# For loop (often used with range())
for i in range(5):
    print(i)

# While loop
count = 0
while count < 3:
    print(count)
    count += 1</code></pre>
                        </div>
                    </div>
                </div>
                
                <!-- Control Structures Exercise -->
                <div class="bg-white border border-gray-200 rounded-lg p-6 shadow-sm">
                    <h3 class="text-xl font-medium text-gray-800 mb-4 flex items-center">
                        <i class="fas fa-puzzle-piece mr-3 text-purple-500"></i>
                        Control Structures Challenge
                    </h3>
                    
                    <div class="mb-6">
                        <div class="flex border-b border-gray-200 mb-4">
                            <button class="tab-button active px-4 py-2 text-blue-600" onclick="changeTab('exercise2', 'java')">
                                Java
                            </button>
                            <button class="tab-button px-4 py-2 text-green-600" onclick="changeTab('exercise2', 'python')">
                                Python
                            </button>
                        </div>
                        
                        <div id="exercise2-java" class="exercise-content">
                            <p class="text-gray-600 mb-4">
                                Write a Java program that prints numbers from 1 to 100. For multiples of 3 print "Fizz", 
                                for multiples of 5 print "Buzz", and for multiples of both print "FizzBuzz".
                            </p>
                            <div class="code-editor mb-4">
                                <pre id="java-control-code" contenteditable="true">public class FizzBuzz {
    public static void main(String[] args) {
        // Your code here
        
        
    }
}</pre>
                            </div>
                            <button onclick="checkControlExercise('java')" class="bg-blue-600 text-white px-4 py-2 rounded-md hover:bg-blue-700 transition">
                                Check Solution
                            </button>
                            <div id="java-control-feedback" class="mt-3 hidden"></div>
                        </div>
                        
                        <div id="exercise2-python" class="exercise-content hidden">
                            <p class="text-gray-600 mb-4">
                                Write the same FizzBuzz program in Python. Remember Python uses indentation for blocks!
                            </p>
                            <div class="code-editor mb-4">
                                <pre id="python-control-code" contenteditable="true"># FizzBuzz in Python
# Your code here



</pre>
                            </div>
                            <button onclick="checkControlExercise('python')" class="bg-green-600 text-white px-4 py-2 rounded-md hover:bg-green-700 transition">
                                Check Solution
                            </button>
                            <div id="python-control-feedback" class="mt-3 hidden"></div>
                        </div>
                    </div>
                </div>
            </div>
        </section>

        <!-- Additional Practice -->
        <section class="mb-16">
            <h2 class="text-2xl font-semibold text-gray-800 mb-6 text-center">Additional Practice Exercises</h2>
            
            <div class="grid grid-cols-1 md:grid-cols-3 gap-6">
                <div class="exercise-card bg-white p-6 rounded-lg shadow-md border border-gray-100">
                    <div class="bg-blue-100 w-12 h-12 rounded-full flex items-center justify-center mb-4 text-blue-600">
                        <i class="fas fa-calculator text-xl"></i>
                    </div>
                    <h3 class="font-medium text-gray-800 mb-2">Calculator Program</h3>
                    <p class="text-sm text-gray-600 mb-4">Create a simple calculator that can add, subtract, multiply, and divide two numbers.</p>
                    <div class="flex space-x-2">
                        <span class="bg-blue-100 text-blue-800 text-xs px-2 py-1 rounded">Java</span>
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                    <h3 class="font-medium text-gray-800 mb-2">Number Guessing Game</h3>
                    <p class="text-sm text-gray-600 mb-4">Program generates a random number and user tries to guess it with hints.</p>
                    <div class="flex space-x-2">
                        <span class="bg-blue-100 text-blue-800 text-xs px-2 py-1 rounded">Java</span>
                        <span class="bg-green-100 text-green-800 text-xs px-2 py-1 rounded">Python</span>
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                    <h3 class="font-medium text-gray-800 mb-2">Student Gradebook</h3>
                    <p class="text-sm text-gray-600 mb-4">Store student names and grades, then calculate averages and find highest/lowest.</p>
                    <div class="flex space-x-2">
                        <span class="bg-blue-100 text-blue-800 text-xs px-2 py-1 rounded">Java</span>
                        <span class="bg-green-100 text-green-800 text-xs px-2 py-1 rounded">Python</span>
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                        Java Resources
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                                Codecademy Java Course
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                                CodingBat Java Practice
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                        Python Resources
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                            <a href="https://docs.python.org/3/tutorial/" class="flex items-center text-green-600 hover:underline">
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                            <a href="https://leetcode.com/problemset/all/" class="flex items-center text-green-600 hover:underline">
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                                LeetCode Python Problems
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