implement lottery ball generation logic

[FranticSkipper]

No description provided.

[mateacademy-ai-mentor]

Review Summary

Thank you for your submission! You're on the right track with your class structure and use of enums, but there are a few critical issues that must be fixed before your code meets all the requirements:

1. Use of String instead of Color enum

   • The Ball class should use the Color enum for its color field and constructor parameter, not a String. This ensures type safety and matches the assignment requirements.
   • The ColorSupplier.getRandomColor() method should return a Color value, not a String. Update its return type and logic accordingly.
   • Update the Lottery.getRandomBall() method to use the enum type throughout (pass the Color to Ball).

2. Magic Numbers Not Defined as Constants

   • In Application.java, the number 3 (used for the array size and loop) should be defined as a constant, e.g., private static final int BALLS_COUNT = 3;, following Java constant naming conventions.

3. Possible Incorrect Ball Number Range

   • In Lottery.java, the random number generation currently allows numbers from 0 to 100 inclusive. If the intended range is 1-100, you should use random.nextInt(MAX_BALL_NUMBER) + 1 to ensure numbers are between 1 and 100.

4. Redundant Empty Lines After Class Declarations

   • There are unnecessary empty lines after class declarations in several files (Application.java, Ball.java, Color.java, ColorSupplier.java, Lottery.java). Please remove these to comply with the style requirements.

Next Steps:

• Update your code to use the Color enum everywhere a color is needed.
• Replace all magic numbers with properly named constants.
• Adjust the random number logic if needed.
• Clean up redundant empty lines.

Once you've made these changes, your code will be much more robust and fully compliant with the assignment requirements. Keep up the good work—you're almost there!

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[mateacademy-ai-mentor]

This violates checklist item: "All magic numbers (like 100, 3) must be defined as constants, following Java constant naming conventions." You should define a constant (e.g., private static final int BALLS_COUNT = 3;) and use it here instead of the literal 3.

[mateacademy-ai-mentor]

This violates checklist item: "Avoid redundant empty lines after class declarations or method signatures." There is an unnecessary empty line after the class declaration.

[mateacademy-ai-mentor]

This violates the requirement: "Create a Ball class with fields: color and number." and "Create an enum with different colors." The color field should be of the enum type (e.g., Color), not String. The constructor should also accept the enum type, not a String.

[mateacademy-ai-mentor]

This violates checklist item: "Avoid redundant empty lines after class declarations or method signatures." There is an unnecessary empty line after the class declaration.

[mateacademy-ai-mentor]

This violates checklist item: "Avoid redundant empty lines after class declarations or method signatures." There is an unnecessary empty line after the package declaration.

[mateacademy-ai-mentor]

This violates the requirement: "Implement a ColorSupplier class with a getRandomColor() method that returns a random color from the enum using the Random class." The method should return the Color enum type, not a String. Change the return type to Color and return the enum value directly.

[mateacademy-ai-mentor]

This violates checklist item: "Avoid redundant empty lines after class declarations or method signatures." There is an unnecessary empty line after the class declaration.

[mateacademy-ai-mentor]

This violates the requirement: "The Ball class must have a constructor that sets both color and number." and "Create an enum with different colors." The Ball constructor should accept the Color enum, not a String. Ensure that getRandomColor() returns Color and Ball accepts Color as its color field.

[mateacademy-ai-mentor]

This may violate the requirement: "The maximum possible number for the ball is 100 (i.e., numbers should be in the range 0 to 99 or 1 to 100, clarify in implementation)." If the intended range is 1-100, you should use random.nextInt(MAX_BALL_NUMBER) + 1 instead of random.nextInt(MAX_BALL_NUMBER + 1). Please clarify and adjust accordingly.

[mateacademy-ai-mentor]

This violates checklist item: "Avoid redundant empty lines after class declarations or method signatures." There is an unnecessary empty line after the class declaration.

[mateacademy-ai-mentor]

Review Summary

All core requirements for the lottery application are fully met. Your code correctly implements the required classes (Ball, Color, ColorSupplier, Lottery, and Application), uses enums and constants appropriately, and follows Java conventions and best practices. There are no critical or blocking issues—everything functions as expected, and your code is clean and well-structured. Excellent job! Keep up the great work.

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