Which of these statements best defines scope?
a) Scope refers to the classes that have access to a variable.
b) Scope determines whether a variable’s value can be altered.
c) Scoping allows the programmer to use a class without using its fully qualified name.
d) Scope is the portion of a program that can refer to an entity by its simple name.
d) Scope is the portion of a program that can refer to an entity by its simple name.
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The process of converting from analog to digital information is a two-step process—sampling and quantizing. In the quantization step, to convert an analog image to a digital image, _____.
A. a two-dimensional grid is applied on the image and each tiny cell on the grid is converted into a pixel B. a two-dimensional grid is applied on the image to apply dithering to the image C. an infinite number of color shades and tones in an analog image is mapped to a finite set of discrete color values D. the resulting digital image file is compressed to have a smaller file size
If you have several colleagues at work who you email frequently, you can add them to a(n) ____________________.
Fill in the blank(s) with the appropriate word(s).
The Eraser is used to remove cell contents
Indicate whether the statement is true or false
The null value is a data type as well as a value that can be assigned to a variable.
Answer the following statement true (T) or false (F)