Comp Prog Chapter 4

Front 1

What is it called when a number is increased by 1?

Back 1

Increment. number++

Front 2

What is it called when a number is deceased by 1?

Back 2

Decrement. number--

Front 3

What is it called when you use increment or decrement when the operator is placed after the variable?

Back 3

Postfix mode. number++

Front 4

What is it called when you use increment or decrement before the variable name?

Back 4

It is called prefix mode. ++number

Front 5

The increment being caused after the value of the variable is used in the expression and the increment being caused before the value of the variable is used in the expression is called what?

Back 5

The different between prefix and postfix mode.

Front 6

What is a control structure that causes a statement or group of statements to repeat?

Back 6

A loop.

Front 7

A boolean expression that is tested for a true or false value and a statement or block of statements that is repeated as long as the expression is true are two important parts of what?

Back 7

The while loop

Front 8

What is each repitition of a loop known as?

Back 8

An iteration

Front 9

What is the variable that controls the number is times that a loop iterates called?

Back 9

The loop control variable

Front 10

What kind of loop is tested with the expression being tested before each iteration

Back 10

A pretest loop

Front 11

What kind of loop is tested with the expression being tested after each iteration?

Back 11

A posttest loop

Front 12

What kind of loop repeats endlessly until the program is interrupted?

Back 12

An infinite loop

Front 13

What's the process of inspecting data given to a program by the user and determining whether it is valid?

Back 13

Input validation

Front 14

What is the read operation that takes place just before the loop called?

Back 14

The priming read

Front 15

What kind of loop allows the user to decide the number of iterations?

Back 15

A user controlled loop

Front 16

A conditional and count-controlled are two types of what?

Back 16

Loops

Front 17

What kind of loop executes as long as a particular condition exists?

Back 17

A conditional loop.

Front 18

What kind of loop repeats a specific number of times?

Back 18

A count-controlled loop

Front 19

What are the three steps of a for loop?

Back 19

Initialization; Test; and Update

Front 20

The first line of the for loop is known as what?

Back 20

The loop header

Front 21

What's the first expression in a for loop known as?

Back 21

The initialization expression

Front 22

What is the second expression used in a for loop?

Back 22

The test expression

Front 23

What is the third expression in a for loop?

Back 23

The update expression

Front 24

In a for loop, what is the variable used to keep a count is the number of iterations?

Back 24

A counter variable

Front 25

What is a variable that is initialized with a starting value (usually 0), and then accumulates a sum of numbers by having the numbers added to it?

Back 25

An accumulator

Front 26

What does an accumulator keep?

Back 26

A running total.

Front 27

What is a special value that cannot be mistaken as a member of the list, and signals that there are no more values to be entered?

Back 27

A sentinel value

Front 28

What kind of print out would:

for(int r = 0; r < 4; r++)

{

for(int c; c < (r + 1); c++

{

SOP("*");

}

SOP

}

have?

Back 28

*

**

***

****

Front 29

The file type that allows a program to read data from it is what?

Back 29

Input file

Front 30

The file type that allows a program to write data to it is what?

Back 30

Output file

Front 31

What file type contains data that has been encoded as text?

Back 31

A text file

Front 32

What file type contains data that has not been converted to text?

Back 32

A binary file

Front 33

What Scanner method can be used to determine whether the file has more data that can be read?

Back 33

The .hasNext() method

Front 34

What File methods checks if a file exists?

Back 34

File var name.exists()