A loop that evaluates a condition at the end of the repeating section of code is referred to as a(n) ____ loop.
a. entrance-controlled
b. pretest
c. exit-controlled
d. aftertest
c. exit-controlled
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Answer the following statements true (T) or false (F)
1) Enumerators can be used to modify the contents of collections. 2) foreach is associated with only the IEnumerator interface. 3) Assigning an array of a derived-class type to an array variable of a base- class type is an example of contravariance. 4) Covariance works only with reference types that are related by a class hierarchy. 5) Using a cast operator to assign an array of base-class-type elements to an array of derived-class-type elements is an example of contravariance.
Which of the following does not apply to an istringstream object?
a. Data is stored in the object as characters. b. Input from the object works identically to input from any file stream. c. Data in a string can be appended to it. d. It is used to inputs data from a string in memory to program variables.
Which statement is True in regard to the following code?
``` intCount = 0 Do While intCount < 10 lstOutput.Items.Add(“Good Job”) Loop ``` a. This is an infinite loop. b. intCount should start at -1. c. The Items.Insert method should be used instead of Items.Add. d. The text Good Job should not have quotation marks around it.
Denotational semantics are based on the formal mathematical model called the ______.
Fill in the blank(s) with the appropriate word(s).