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<!DOCTYPE html>
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<title>Learn Java & Python Basics</title>
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<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">
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Control Structures Challenge
</h3>
<div class="mb-6">
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<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>
<span class="bg-green-100 text-green-800 text-xs px-2 py-1 rounded">Python</span>
</div>
</div>
<div class="exercise-card bg-white p-6 rounded-lg shadow-md border border-gray-100">
<div class="bg-purple-100 w-12 h-12 rounded-full flex items-center justify-center mb-4 text-purple-600">
<i class="fas fa-sort-amount-down text-xl"></i>
</div>
<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>
</div>
</div>
<div class="exercise-card bg-white p-6 rounded-lg shadow-md border border-gray-100">
<div class="bg-amber-100 w-12 h-12 rounded-full flex items-center justify-center mb-4 text-amber-600">
<i class="fas fa-user-friends text-xl"></i>
</div>
<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>
</div>
</div>
</div>
</section>
<!-- Resources Section -->
<section class="bg-gray-100 rounded-xl p-8 mb-16">
<h2 class="text-2xl font-semibold text-gray-800 mb-6 text-center">Learning Resources</h2>
<div class="grid grid-cols-1 md:grid-cols-2 gap-8">
<div>
<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 Resources
</h3>
<ul class="space-y-3">
<li>
<a href="https://docs.oracle.com/javase/tutorial/" class="flex items-center text-blue-600 hover:underline">
<i class="fas fa-book mr-2"></i>
Official Java Tutorials
</a>
</li>
<li>
<a href="https://www.codecademy.com/learn/learn-java" class="flex items-center text-blue-600 hover:underline">
<i class="fas fa-laptop-code mr-2"></i>
Codecademy Java Course
</a>
</li>
<li>
<a href="https://codingbat.com/java" class="flex items-center text-blue-600 hover:underline">
<i class="fas fa-edit mr-2"></i>
CodingBat Java Practice
</a>
</li>
</ul>
</div>
<div>
<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 Resources
</h3>
<ul class="space-y-3">
<li>
<a href="https://docs.python.org/3/tutorial/" class="flex items-center text-green-600 hover:underline">
<i class="fas fa-book mr-2"></i>
Official Python Tutorial
</a>
</li>
<li>
<a href="https://www.learnpython.org/" class="flex items-center text-green-600 hover:underline">
<i class="fas fa-laptop-code mr-2"></i>
LearnPython Interactive Tutorial
</a>
</li>
<li>
<a href="https://leetcode.com/problemset/all/" class="flex items-center text-green-600 hover:underline">
<i class="fas fa-edit mr-2"></i>
LeetCode Python Problems
</a>
</li>
</ul>
</div>
</div>
</section>
<footer class="text-center text-gray-600 text-sm mb-8">
<p>Happy coding! Remember that consistent practice is key to mastering programming.</p>
<p class="mt-2">Created with ❀️ using HTML, CSS, and JavaScript</p>
</footer>
</div>
<script>
// Tab switching functionality
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// Hide all exercise contents for this exercise
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if (language === 'java') {
const code = document.getElementById('java-code').textContent;
// Check for common mistakes
if (code.includes('int count = "10"')) {
showFeedback(feedbackElement, "❌ Error: You can't assign a String to an int variable", false);
} else if (code.includes('double average = 3.5')) {
showFeedback(feedbackElement, "❌ Error: Missing semicolon after 3.5", false);
} else if (code.includes('boolean isCorrect = "true"')) {
showFeedback(feedbackElement, "❌ Error: Boolean values don't use quotes", false);
} else if (code.includes('char initial = A')) {
showFeedback(feedbackElement, "❌ Error: Char values need single quotes", false);
} else {
showFeedback(feedbackElement, "βœ… Correct! All variable declarations are fixed!", true);
}
} else { // python
const code = document.getElementById('python-code').textContent;
if (code.includes('area = length * width')) {
showFeedback(feedbackElement, "βœ… Correct! The area is calculated properly.", true);
} else {
showFeedback(feedbackElement, "❌ Try calculating the area by multiplying length and width", false);
}
}
}
function checkControlExercise(language) {
const feedbackId = `${language}-control-feedback`;
const feedbackElement = document.getElementById(feedbackId);
if (language === 'java') {
const code = document.getElementById('java-control-code').textContent;
if (code.includes("if (i % 15 == 0)") ||
(code.includes("i % 3 == 0") && code.includes("i % 5 == 0"))) {
showFeedback(feedbackElement, "βœ… Excellent FizzBuzz implementation!", true);
} else if (code.includes("System.out.println") && code.includes("for")) {
showFeedback(feedbackElement, "⚠️ Close! Did you handle the FizzBuzz case (divisible by 3 and 5)?", false);
} else {
showFeedback(feedbackElement, "❌ Try using a for loop and if-else conditions", false);
}
} else { // python
const code = document.getElementById('python-control-code').textContent;
if (code.includes("if i % 15 == 0") ||
(code.includes("i % 3 == 0") && code.includes("i % 5 == 0"))) {
showFeedback(feedbackElement, "βœ… Perfect Python FizzBuzz solution!", true);
} else if (code.includes("print") && code.includes("for i in range")) {
showFeedback(feedbackElement, "⚠️ Almost there! Check your conditions for FizzBuzz", false);
} else {
showFeedback(feedbackElement, "❌ Remember Python uses indentation and elif", false);
}
}
}
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element.textContent = message;
element.className = isSuccess ? 'mt-3 text-green-600' : 'mt-3 text-red-600';
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