2

[VadimN637]

No description provided.

[mateacademy-ai-mentor]

Review Summary

Your solution meets the functional requirements: Ball, ColorSupplier, Lottery, and Application all work together correctly to generate and print three random balls, and the use of Random, enums, and toString() is appropriate and correct. The remaining issues are minor style/checklist points rather than blockers: there are a few redundant empty lines in ColorSupplier.java (right after the package/imports, after the enum, and after the random field), which you should remove to keep formatting clean [CHECKLIST ITEM #1]. In Application.java, the loop uses a magic number 3; it would be better to introduce a constant like private static final int BALL_COUNT = 3; and use it in the for condition [CHECKLIST ITEM #9]. In Lottery.java, you can simplify getRandomBall() by returning the new Ball(...) directly instead of first storing color and number in temporary local variables [CHECKLIST ITEM #2]. None of these affect correctness, so your work is accepted, but I recommend applying these small improvements to align fully with the checklist and strengthen your coding style.

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[mateacademy-ai-mentor]

This file has a redundant empty line after the package declaration/imports. This violates checklist item #1: "Please don't add redundant empty lines to your code (e.g., after class declaration or method signature)." Remove the unnecessary blank line here.

[mateacademy-ai-mentor]

There is a redundant empty line after the enum closing }. This violates checklist item #1: "Please don't add redundant empty lines to your code (e.g., after class declaration or method signature)." Remove the blank line to keep the file compact.

[mateacademy-ai-mentor]

There is a redundant empty line after the random field declaration. This violates checklist item #1: "Please don't add redundant empty lines to your code (e.g., after class declaration or method signature)." Removing this blank line will satisfy the checklist requirement.

[mateacademy-ai-mentor]

This violates checklist item #9: "All magic numbers in your code should be constants." Declare a constant like private static final int BALL_COUNT = 3; in the Application class and use i < BALL_COUNT in the loop instead of the literal 3.

[mateacademy-ai-mentor]

This creates temporary local variables (number and color) even though you can return the constructed Ball directly. This violates checklist item #2: "Don't create temporary variables if you can directly return value from the method". Consider returning new Ball(colorSupplier.getRandomColor(), random.nextInt(MAX_NUMBER) + 1); to avoid unnecessary locals.