How many default constructors can a class have?
A. a class cannot have a default constructor
B. one
C. fewer than three
D. as many as it needs
Answer: B
Computer Science & Information Technology
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A(n) ________ chart displays two different types of data by using multiple chart types in a single chart object
A) Scatter B) combination C) column D) area
Computer Science & Information Technology
________ is an I/O-performance-enhancement technique—it reduces the number of I/O operations by combining smaller outputs together in memory; the number of physical I/O operations is much smaller than the number of I/O requests issued by the program.
a. Aggregating b. Accumulating c. Amassing d. Buffering
Computer Science & Information Technology