Initial commit: Java Evolution Guide

Author: victormartingil

.github/workflows/deploy.yml

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+name: Deploy Documentation
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+permissions:
+  contents: write
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Configure Git Credentials
+        run: |
+          git config user.name github-actions[bot]
+          git config user.email 41898282+github-actions[bot]@users.noreply.github.com
+
+      - uses: actions/setup-python@v5
+        with:
+          python-version: 3.x
+
+      - name: Cache dependencies
+        uses: actions/cache@v4
+        with:
+          key: mkdocs-material-${{ hashFiles('requirements.txt') }}
+          path: ~/.cache/pip
+          restore-keys: |
+            mkdocs-material-
+
+      - name: Install dependencies
+        run: pip install -r requirements.txt
+
+      - name: Deploy to GitHub Pages
+        if: github.event_name == 'push'
+        run: mkdocs gh-deploy --force

.idea/.gitignore

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+# Java Evolution Guide
+
+[![Deploy Documentation](https://github.com/corbat/corbat-java-evolution/actions/workflows/deploy.yml/badge.svg)](https://github.com/corbat/corbat-java-evolution/actions/workflows/deploy.yml)
+[![Java 8](https://img.shields.io/badge/Java-8-5382a1?logo=openjdk&logoColor=white)](https://corbat.github.io/corbat-java-evolution/versions/java-8/)
+[![Java 11](https://img.shields.io/badge/Java-11-f89820?logo=openjdk&logoColor=white)](https://corbat.github.io/corbat-java-evolution/versions/java-11/)
+[![Java 17](https://img.shields.io/badge/Java-17-ed8b00?logo=openjdk&logoColor=white)](https://corbat.github.io/corbat-java-evolution/versions/java-17/)
+[![Java 21](https://img.shields.io/badge/Java-21-7b42bc?logo=openjdk&logoColor=white)](https://corbat.github.io/corbat-java-evolution/versions/java-21/)
+[![Java 25](https://img.shields.io/badge/Java-25-00875a?logo=openjdk&logoColor=white)](https://corbat.github.io/corbat-java-evolution/versions/java-25/)
+
+A comprehensive visual guide to Java evolution from version 8 to 25. Master modern Java features with before/after code examples.
+
+## Quick Links
+
+- [View Documentation](https://corbat.github.io/corbat-java-evolution/)
+- [Quick Reference Cheat Sheet](https://corbat.github.io/corbat-java-evolution/interview/quick-reference/)
+
+## What's Covered
+
+| Version | Year | Key Features |
+|---------|------|--------------|
+| **Java 8** | 2014 | Lambda, Streams, Optional, Date/Time API |
+| **Java 11** | 2018 | var, HTTP Client, String methods |
+| **Java 17** | 2021 | Records, Sealed Classes, Pattern Matching |
+| **Java 21** | 2023 | Virtual Threads, Pattern Switch, Record Patterns |
+| **Java 25** | 2025 | Primitive Patterns, Scoped Values, Compact Files |
+
+## Local Development
+
+```bash
+# Install dependencies
+pip install -r requirements.txt
+
+# Run local server
+mkdocs serve
+
+# Build site
+mkdocs build
+```
+
+## License
+
+MIT

.idea/copilot.data.migration.ask2agent.xml

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+/* ============================================
+   JAVA VERSION COLOR SYSTEM
+   ============================================ */
+
+:root {
+  --java-8-color: #5382a1;
+  --java-11-color: #f89820;
+  --java-17-color: #ed8b00;
+  --java-21-color: #7b42bc;
+  --java-25-color: #00875a;
+}
+
+/* ============================================
+   VERSION BADGES
+   ============================================ */
+
+.java-8 {
+  background: linear-gradient(135deg, var(--java-8-color), #3a5d7a);
+  color: white;
+  padding: 0.2em 0.6em;
+  border-radius: 4px;
+  font-weight: 600;
+  font-size: 0.85em;
+}
+
+.java-11 {
+  background: linear-gradient(135deg, var(--java-11-color), #d4790a);
+  color: white;
+  padding: 0.2em 0.6em;
+  border-radius: 4px;
+  font-weight: 600;
+  font-size: 0.85em;
+}
+
+.java-17 {
+  background: linear-gradient(135deg, var(--java-17-color), #cc7700);
+  color: white;
+  padding: 0.2em 0.6em;
+  border-radius: 4px;
+  font-weight: 600;
+  font-size: 0.85em;
+}
+
+.java-21 {
+  background: linear-gradient(135deg, var(--java-21-color), #5a2d91);
+  color: white;
+  padding: 0.2em 0.6em;
+  border-radius: 4px;
+  font-weight: 600;
+  font-size: 0.85em;
+}
+
+.java-25 {
+  background: linear-gradient(135deg, var(--java-25-color), #006644);
+  color: white;
+  padding: 0.2em 0.6em;
+  border-radius: 4px;
+  font-weight: 600;
+  font-size: 0.85em;
+}
+
+/* ============================================
+   FEATURE CARDS
+   ============================================ */
+
+.feature-card {
+  border-left: 4px solid var(--md-primary-fg-color);
+  padding: 1rem;
+  margin: 1rem 0;
+  background: var(--md-code-bg-color);
+  border-radius: 0 8px 8px 0;
+}
+
+.feature-card.java-8 { border-left-color: var(--java-8-color); }
+.feature-card.java-11 { border-left-color: var(--java-11-color); }
+.feature-card.java-17 { border-left-color: var(--java-17-color); }
+.feature-card.java-21 { border-left-color: var(--java-21-color); }
+.feature-card.java-25 { border-left-color: var(--java-25-color); }
+
+/* ============================================
+   CODE TABS STYLING
+   ============================================ */
+
+.md-typeset .tabbed-labels > label {
+  font-weight: 600;
+}
+
+/* ============================================
+   INTERVIEW CALLOUTS
+   ============================================ */
+
+.interview-tip {
+  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
+  color: white;
+  padding: 1rem;
+  border-radius: 8px;
+  margin: 1rem 0;
+}
+
+.interview-tip::before {
+  content: 'Interview Tip';
+  display: block;
+  font-weight: 700;
+  margin-bottom: 0.5rem;
+}
+
+/* ============================================
+   HERO SECTION
+   ============================================ */
+
+.hero {
+  text-align: center;
+  padding: 2rem 0;
+}
+
+.hero h1 {
+  font-size: 2.5rem;
+  margin-bottom: 0.5rem;
+}
+
+.hero h2 {
+  font-weight: 400;
+  opacity: 0.8;
+  margin-top: 0;
+}
+
+/* ============================================
+   GRID CARDS ENHANCEMENTS
+   ============================================ */
+
+.md-typeset .grid.cards > ul > li {
+  transition: transform 0.2s ease, box-shadow 0.2s ease;
+}
+
+.md-typeset .grid.cards > ul > li:hover {
+  transform: translateY(-4px);
+  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
+}