Java RegEx

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <style>
        body {
            font-family: 'Fira Code', Consolas, Monaco, monospace;
            background: #0f172a;
            color: #f8fafc;
            padding: 20px;
            margin: 0;
            line-height: 1.6;
        }
        .header {
            background: #1e293b;
            padding: 10px 16px;
            border-radius: 8px 8px 0 0;
            border-bottom: 2px solid #334155;
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: #94a3b8;
        }
        .dot { width: 12px; height: 12px; border-radius: 50%; display: inline-block; }
        .dot-red { background: #ef4444; }
        .dot-yellow { background: #eab308; }
        .dot-green { background: #22c55e; }
        .code-box {
            background: #1e293b;
            padding: 18px 20px;
            border-bottom: 1px dashed #334155;
            color: #38bdf8;
            font-size: 14px;
            white-space: pre-wrap;
        }
        .comment { color: #64748b; font-style: italic; }
        .output-box {
            background: #020617;
            padding: 18px 20px;
            border-radius: 0 0 8px 8px;
            color: #e2e8f0;
            font-size: 13px;
        }
    </style>
</head>
<body>
    <div class="header">
        <span class="dot dot-red"></span>
        <span class="dot dot-yellow"></span>
        <span class="dot dot-green"></span>
        <span style="margin-left: 8px; font-weight: bold; color: #ea580c;">☕ Java RegEx - Skillance Java 21</span>
    </div>
    <div class="code-box">
<span class="comment">// Skrip Java 21 - Skillance Academy Indonesia</span>
import java.util.regex.*;
public class Main {
    public static void main(String[] args) {
        Pattern p = Pattern.compile("\\d+");
        Matcher m = p.matcher("Order #2026 Sukses");
        if(m.find()) System.out.println("Nomor Order: " + m.group());
    }
}
    </div>
    <div class="output-box">
        <div style="color: #64748b; margin-bottom: 6px;">[JVM Terminal Output] &gt; javac Main.java &amp;&amp; java Main</div>
        <div style="color: #4ade80; font-weight: bold;">Nomor Order: 2026</div>
    </div>
</body>
</html>