The name used to refer to the current instance of a class within the class definition is: self 7. An object's lifetime ends: when it can no longer be referenced anywhere in a program 6. The call of class A's _init_ method in class B is: A._init_(self) 5. The _init_ methods in both classes expect no arguments. A class variable is used for data that: all instances of a class have in common 4. A polymorphic method: has a single header but different bodies in different classes. An instance variable refers to a data value that: is owned by a particular instance of a class and no other 2. GUIs represent color values using: RGB triples of integers Unit 9 Quiz 1. The sticky attribute: controls the alignment of a window component in its grid cell 10. The window component that allows a user to move the text visible beneath a TextArea widget is a: scroll bar 9. In contrast to a terminal-based program, a GUI-based program: can allow the user to enter inputs in any order 8. The attribute used to attach an event-handling method to a button is named:command 7. A window component that supports selecting one option only is the: radio button 6. A rectangular subarea with its own grid for organizing widgets is a: panel 5. The main window class in a GUI-based program is a subclass of EasyFrame 4. Multi-line text is displayed in a: text area 3. The rows and columns in a grid layout are numbered starting from (0,0) 2. In a system of 256 unique colors, the number of bits needed to represent each color is 8 Unit 8 Quiz 1. The print function: prints a string representation of an object 10.
The origin (0, 0) in a screen coordinate system is at: the upper-left corner of a window 9. The process whereby analog information is converted to digital information is called: sampling 8. 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: The interface of a class is the set of all its: methods 7. The state of an object consists of: the values of all of its attributes 5. Instantiation is a process that: creates a new object of a given class 4. The clone method: copies an existing object 3. A row-major traversal of a two-dimensional grid visits all of the positions in a: row before moving to the next row 2. 1 5.2 Unit 7 Quiz Unit 8 Quiz Unit 9 Quiz FINAL Notes on Final website: Mid-Term 2 Practice Mid-Term 2 Ch 8 Quiz CH 6 QUIZ Unit 5 Quiz Midterm Practice Examģ Unit 7 Quiz 1.
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