Intro to Computers Chapter 4

while (true!)

Suppose you want to program behavior that repeats as long as some condition does not occur. To do this, what statement could you use?

0

The Alice for statement always begins counting with ____.

i++

The Alice for statement uses ____ to increase the index.

while

The ___ statement directs program flow through a group of statements an arbitrary number of times.

6, relational

The ____ most common operators that produce Boolean values are called the ____ operators.

++

The ____ sign is the increment operator.

while

The ____ statement can be used in any situation where repetition is required.

for

The ____ statement directs a program's flow through the statements within it, while counting through a range of numbers.

functions

The ____ tab of Alice's details area contains questions we can ask an object.

i<N

What is the generic condition in a for statement?

89

What number follows 55 in the series below? 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, ____

delay

When Alice encounters a ____ statement, it pauses the program's flow, sets an internal timer to a specified number of seconds, and starts this timer counting down towards zero.

parallel

A DoTogether statement is characterized by its ____ execution.

boolean

A(n) ____ variable can have either of just two values: true or false.

boolean

A(n) ____ variable can serve as a condition in an if or while statement.

validating

Checking a parameter's value before allowing flow to proceed is called ____ the parameter.

conditions

Decision-making on a program depends on ____.

run

From the perspective of an Alice program, you can think of a flow as the sequence of statements that are performed when you click the ____ button.

13-19

Give a value of age that will make the statement true. (age > 12 && age < 20)

any number between 0 and 100

Give a value of testScore that will make the statement false. testScore < 0 || testScore > 100

and

If two conditions must both be true in order for an argument to be acceptable, they should be combined with a Boolean ____ operator.

if

In Alice, a(n) ____ statement is a flow control statement that directs flow according to the value of a condition.

nested

In the following code segment, the second if statement (in blue) is said to be ____. if (condition) { // statement (s) } else { if (condition) { } else { // statement(s) } }

fibinacci

Mathematicians have discovered that many of the spirals that occur in nature use a pattern given in the ____ series.

2

Relational operators compare ____ values and produce an appropriate true or false value.