Suppose Listener Is an Instance of a Class That Implements

question 29

Multiple Choice

Suppose listener is an instance of a class that implements the MouseListener interface. How many methods does listener have?

• A) 0
• B) 1
• C) 3
• D) at least 5

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Definitions:

Activity Base

A measure used in costing that is a significant and quantifiable activity or event, determining the cost incurred by an activity.

Level Of Activity

A measure of the volume of production or work that a business operates at, which can affect costs and efficiency.

Variable Costs

Expenses that vary directly with the amount of production or the degree of business operations.

Fixed Costs

Expenses that do not change with the level of production or sales over a certain period, such as rent or salaries.