What are the best practices for refactoring legacy code in Java?
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What are the best practices for refactoring legacy code in Java?
When refactoring legacy code in Java, consider these best practices: 1. Write tests before refactoring, 2. Refactor in small steps, 3. Use version control, 4. Keep methods small and focused, 5. Document changes.
Can you explain why writing tests first is important?
Writing tests first ensures that you have a safety net to catch any regressions or bugs introduced during the refactoring process. It helps maintain the functionality of the code.
What tools can help with refactoring Java code?
Some popular tools for refactoring Java code include IntelliJ IDEA, Eclipse, and SonarQube. These tools provide features like code analysis, automated refactoring, and code quality checks.
How do I identify code smells in legacy Java code?
To identify code smells, look for long methods, duplicated code, large classes, and excessive parameters. Tools like SonarQube can also help detect these issues.
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