List and briefly describe at least six different ActionScript 3.0 programming concepts.
What will be an ideal response?
Event: A trigger that determines which instructions are executed and when
Function: A group of named, reusable statements that form a command
Methods: The types of actions an object performs; functions that are attached to objects
Objects: The data you want to control
Properties: The attributes of an object; variables that are connected to an object
Variable: A specific piece of information or data
Parameter: A specific value that clarifies or limits a function
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All of the following methods are implicitly final except:
a. a method in an abstract class. b. a private method. c. a method declared in a final class. d. static method.
Answer the following statements true (T) or false (F)
1. On a traditional IBM mainframe, interrupts are implemented by switching program status words, so the old PSW field provides a link back to the task that was executing at the time the interrupt occurred. 2. On a traditional IBM mainframe running under MVS, job management, task management, and application program routines are linked through a series of control blocks that hold key control information in memory. 3. On a traditional IBM mainframe, the old PSW holds system constants and pointers. 4. On a traditional IBM mainframe running under MVS, each partition has its own PSW.
Many designers believe that the operating system should always be given a “most trusted” status. Some designers feel that even the operating system should be curtailed, particularly in its ability to reference certain areas of memory. Discuss the pros and cons of allowing the operating system to access the full range of real addresses in a computer system at all times.
What will be an ideal response?
The R-squared value is calculated by squaring the correlation coefficient, labeled as Squared R in the output
Indicate whether the statement is true or false