mc study guide chapter 6

a sentinel controlled loop is also called a flag controlled loop

false

a state-controlled loop should be designed when you know the number of times the statements must be executed

false

if a numeric variable is being changed by a consistent amount with each iteration through the loop, the while statement is the best choice of loop constructs

false

in c# curly braces must be added to surround all loop bodies

false

s = num.Next(7); the statement above procures seven random numbers

false

with nested loops, the outermost loop is always totally completed before the innermost loop is executed

false

with while loops, if the conditional expression evaluates to true, the body of the loop is not performed; control transfers to the statements following the loop

false

you often need to do a "prime the read" for counter-controlled loops which means that you would input a value before going into the body of the loop

false

a restriction on using foreach statement is that you cannot change values in the collection. the access to the elements is read-only

true

an advantage of sentinel-controlled loops is you do not need to know how many times the loop will be performed

true

an interpretation of the while statement is "while the condition is true, perform statements"

true

c# performs automatic garbage collection once the loop is finished and releases any variables declared as part of the loop

true

the do... while statement is a posttest loop, which means that the conditional expression is tested before any of the statements in the body of the loop are performed

false

the while statement is the only type of loop construct that can be used to develop a sentinel-controlled loop

false

an off-by-one error is a common problem associated with counter-controlled loops where the loop body is performed one too many or one too few times

true

one of the major strengths of programming languages can be attributed to loops

true

scope refers to the region in the program in which you can use the variable

true

the conditional expression is sometimes called the loop condition

true

the do... while loop can be used to implement a counter-controlled, sentinel-controlled, or state controlled loop

true

the sentinel valuse is used as the operand in the conditional expression for an indefinite loop

true

unlike the sentinel-controlled loop, the variable used with a state-controlled loop differs from the variable used to store the data that is being processed

true

using the break or continue statements with a loop violates the single entry and single exit guideline for developing a loop

true

without incrementing the counter used in the conditional expression with counter controlled loops, the loop would go on indefinitely

true