Additional Notes
Why is using ‘magic numbers’ in your code risky in production code?
Track: Java
Topic: Core Java
Focus: Code Reading and Debugging
Java: Code Reading and Debugging
Answer
They make code harder to understand and maintain.
Magic numbers are hard-coded values with no explanation. They make the code less readable and harder to maintain. For example, using `total = price - 5;` makes it unclear what the '5' represents. Instead, use a named constant: `final int DISCOUNT_AMOUNT = 5; total = price - DISCOUNT_AMOUNT;`.
Magic numbers are hard-coded values with no explanation. They make the code less readable and harder to maintain. For example, using `total = price - 5;` makes it unclear what the '5' represents. Instead, use a named constant: `final int DISCOUNT_AMOUNT = 5; total = price - DISCOUNT_AMOUNT;`.
Topics: Code Reading and Debugging Core Java Java