<p>What are the main features and advantages of Jetbrains IntelliJ IDEA Ultimate?<br /><strong>Smart Refactoring</strong> – Improves code quality with safer structural changes.<br /><strong>Deep Debugging</strong> – Speeds troubleshooting across complex application workflows.<br /><strong>Framework Support</strong> – Handles enterprise Java and web stacks effectively.<br /><strong>Code Insight</strong> – Detects errors early with precise analysis.<br /><strong>Tool Integration</strong> – Unifies testing, databases, version control, and deployment.<br /><strong>Development Agility</strong> – Supports long-term productivity and maintainable software projects.</p>