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1 The interface of a class is the set of all its a objects b attributes c method

ID: 3667171 • Letter: 1

Question

1 The interface of a class is the set of all its a objects b attributes c methods 2 The state of an object consists of a its class of origin b the values of all of its attributes c its physical structure 3 Instantiation is a process that a compares two objects for equality b builds a string representation of an object c creates a new object of a given class 4 The str function a creates a new object b copies an existing object c returns a string representation of an object 5 The clone method a creates a new object b copies an existing object c returns a string representation of an object 6 The origin (0, 0) in a screen coordinate system is at a the center of a window b the upper-left corner of a window 7 A row-major traversal of a two-dimensional grid visits all of the positions in a a row before moving to the next row b column before moving to the next column 8 In a system of 256 unique colors, the number of bits needed to represent each color is a 4 b 8 c 16 9 In the RGB system, where each color contains three components with 256 possible values each, the number of bits needed to represent each color is a 8 b 24 c 256 10 The process whereby analog information is converted to digital information is called a recording b sampling c filtering d compressing

Explanation / Answer

1 The interface of a class is the set of all its (C)

a objects b attributes c methods

2 The state of an object consists of (B)

a its class of origin b the values of all of its attributes c its physical structure

3 Instantiation is a process that (C)

a compares two objects for equality b builds a string representation of an object c creates a new object of a given class

4 The str function (C)

a creates a new object b copies an existing object c returns a string representation of an object

5 The clone method (B)

a creates a new object b copies an existing object c returns a string representation of an object

6 The origin (0, 0) in a screen coordinate system is at (B)

a the center of a window b the upper-left corner of a window

7 A row-major traversal of a two-dimensional grid visits all of the positions in a (A)

a row before moving to the next row b column before moving to the next column

8 In a system of 256 unique colors, the number of bits needed to represent each color is (B)

a 4 b 8 c 16

9 In the RGB system, where each color contains three components with 256 possible values each, the number of bits needed to represent each color is (B)

a 8 b 24 c 256

10 The process whereby analog information is converted to digital information is called (B)

a recording b sampling c filtering d compressing