5 Best Practices for Clean & Maintainable Code
1. Write Clean Code
- Clean code can be summarized as a code that any developer can read and change easily.
- Clean coding principles help us achieve a lot of desirable goals related to the software we intend to produce.
- As part of clean code, we have to focus on the below points:
- Maintainable codebase
- Easier troubleshooting
- Faster onboarding
- Easier for enhancing
2. Use Proper Naming Convention
- Before starting to write the code, set a proper naming convention for your Java project.
- Pre-decide names for every class, interfaces, methods and variables etc.
- If other developers are also working with you on the same project, they should also follow it to maintain uniformity.
- A meaningful naming convention is extremely important as everything, from classes to interfaces are identified from their names in the code.
3. Avoiding Memory Leaks
- Always releasing database connections after your querying is done.
- Use of ‘Finally block’ as often as possible and ‘Releasing instances’ stored in static tables are some java coding best practices you must adapt to prevent memory leaks.
4. Avoid Redundant Initialisation
- It is not encouraged to initialize member variables with the values: like 0, false and null.
- These values are already the default initialization values of member variables in Java.
- Therefore, a Java best practice is to be aware of the default initialization values of member variables and avoid initializing the variables explicitly.
5. Proper Commenting
- As your code will be read by various people with varying knowledge of Java, proper comments should be used to give an overview of your code and provide additional information.
- Comments are supposed to describe the working of your code to be read by any team members, managers who might not have enough knowledge about Java.