A class becomes abstract when you place the __________ key word in the class definition.

a. super b. extends c. final d. abstract


d. abstract

Computer Science & Information Technology

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If an object has a natural ____ representation, it is a good idea to build it within a toString() method.

A. Double B. Boolean C. String D. Integer

Computer Science & Information Technology

Alice lets us build programs consisting of statements, in which we often send messages to ____.

A. functions B. objects C. classes D. methods

Computer Science & Information Technology

What is the SQL statement required to delete the age column from the Student table discussed earlier in the chapter?

What will be an ideal response?

Computer Science & Information Technology

A distributed WLAN architecture can be described as which of the following?

A. a BSS composed of two or more ESS networks B. an ESS that uses multiple autonomous access points C. an IBSS that uses a single centrally managed fat AP D. multiple ad-hoc networks combined to form one large network

Computer Science & Information Technology