When You Write an Action Listener Class for a JButton

question 24

Multiple Choice

When you write an action listener class for a JButton component, it must:

• A) have a method named buttonClicked
• B) implement the ActionLIstener interface
• C) have a method named actionPerformed which must take an argument of the ActionEvent type
• D) both B and C

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Definitions:

Expected Annual Net Income

The projection of a company's net income over a year, taking into account estimated revenues and expenses.

Average Investment

The middle amount invested over a period of time, often used in performance measurement or investment appraisal.

Unprofitable Segment

A division or part of a business that consistently operates at a loss, detracting from the overall profitability of the company.

Elimination

The process of removing a component or aspect, often used in the context of accounting to adjust consolidated financial statements.