A programmer is designing a class to encapsulate the information about an inventory item. A JavaBeans component is needed to do this. The Inventoryltem class has private instance variables to store the item information: 10. private int itemId; 11. private String name; 12. private String description; Which method signature follows the JavaBeans naming standards for modifying the itemld instance variable?

technology programming languages

  1. itemID(int itemId)

  2. update(int itemId)

  3. setItemId(int itemId)

  4. mutateItemId(int itemId)

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Correct Option: C
Explanation:

To solve this question, the user needs to understand the naming conventions used in JavaBeans to create setter methods for private instance variables.

According to JavaBeans conventions, setter methods for private instance variables should be named in the format setVariableName. Therefore, the correct method signature to modify the itemId instance variable in the Inventoryltem class should be:

C. setItemId(int itemId)

Option A: itemID(int itemId) is not following the JavaBeans naming standards for setter methods. The method name should start with the prefix set followed by the variable name.

Option B: update(int itemId) does not follow the JavaBeans naming conventions. The method name should start with the prefix set followed by the variable name.

Option D: mutateItemId(int itemId) is not a standard JavaBeans naming convention. The method name should start with the prefix set followed by the variable name.

Therefore, the correct answer is:

The Answer is: C. setItemId(int itemId)

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