<!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <meta charset="UTF-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0" /> <title>Clean Code - A Solid Guide</title> <style> /* Reset & base typography for clean reading */ body { font-family: Georgia, "Times New Roman", Times, serif; line-height: 1.5; margin: 0; padding: 0; color: #1a1a1a; background-color: #fefefe; } h1, h2, h3 { font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-weight: normal; margin-top: 1.5em; margin-bottom: 0.5em; page-break-after: avoid; } h1 { font-size: 1.8em; text-align: center; margin-top: 2em; margin-bottom: 1em; border-bottom: 1px solid #ccc; padding-bottom: 0.3em; } h2 { font-size: 1.5em; border-left: 4px solid #2c6e2c; padding-left: 0.6em; } h3 { font-size: 1.3em; font-style: italic; color: #2c6e2c; } p, li, blockquote { text-align: justify; hyphens: auto; } code { font-family: "Courier New", Courier, monospace; background-color: #f5f5f5; padding: 0.2em 0.4em; border-radius: 3px; font-size: 0.9em; white-space: pre-wrap; } pre { background-color: #f5f5f5; padding: 1em; border-left: 4px solid #2c6e2c; overflow-x: auto; font-size: 0.85em; font-family: "Courier New", Courier, monospace; margin: 1.2em 0; border-radius: 0 6px 6px 0; } .bad, .good { padding: 0.8em; margin: 1em 0; border-radius: 6px; } .bad { background-color: #ffe6e6; border-left: 6px solid #c00; } .good { background-color: #e6ffe6; border-left: 6px solid #2c6e2c; } .bad:before { content: "❌ Avoid: "; font-weight: bold; color: #a00; } .good:before { content: "✅ Prefer: "; font-weight: bold; color: #2c6e2c; } .tip { background-color: #eef4ff; padding: 0.8em; margin: 1em 0; border-radius: 6px; border-left: 6px solid #1e6f9f; } .tip:before { content: "💡 Tip: "; font-weight: bold; color: #1e6f9f; } ul, ol { margin: 0.8em 0; padding-left: 1.5em; } li { margin: 0.3em 0; } hr { margin: 2em 0; border: none; border-top: 1px dotted #bbb; } .footer { margin-top: 3em; font-size: 0.8em; text-align: center; color: #777; border-top: 1px solid #ddd; padding-top: 1em; } @media (prefers-color-scheme: dark) { body { background-color: #1e1e1e; color: #e0e0e0; } code, pre { background-color: #2d2d2d; } .bad { background-color: #2a1a1a; } .good { background-color: #1a2a1a; } .tip { background-color: #1a2a3a; } } </style> </head> <body> <h1>Clean Code: A Solid Guide</h1> <p style="text-align: center; font-style: italic;">Practical principles for writing readable, maintainable, and honest software.</p>
<h3>Switch statements: hide them</h3> <p>Use polymorphism or a factory. A <code>switch</code> with multiple cases usually violates the Single Responsibility Principle.</p> codigo limpo epub
<h3>One level of abstraction per function</h3> <p>Mixing high-level business logic with low-level file I/O is a common smell.</p> <div class="bad"> <pre>void processOrder(Order order) { // high level validateOrder(order); // low level Files.writeString(Path.of("log.txt"), "Processing"); // high level again applyDiscount(order); }</pre> </div> </div>
<div class="tip"> One assertion per test is a good guideline. If you have many, consider splitting. </div> meta charset="UTF-8" />