When an Interface Lists a Method as "Optional," You Do

question 19

True/False

When an interface lists a method as "optional," you do not need to implement it when defining a class that implements the interface.

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Definitions:

Accrual Of Revenue

The recognition of income by a business at the time the revenue is earned, not necessarily when cash is received.

Cash Dividend

A payment made by a company out of its profits to shareholders in the form of cash.

Indirect Method

A way of calculating cash flows from operating activities in the statement of cash flows, where net income is adjusted for changes in balance sheet items that affect cash.

Depreciation Expense

Depreciation expense is the allocated amount of the cost of a tangible or physical asset that is expensed over its useful life, reflecting wear and tear or obsolescence.