COP2253 Zybooks Chapter Five

Question 1

array

Answer 1

a special variable having one name, but storing a list of data items, with each item being directly accessible

Question 2

element

Answer 2

used to refer to each item in an array

Question 3

What statement declares a reference variable and allocates an array?

Answer 3

dataType[] arrayName = new dataType[numElements]

Question 4

common for loop structure for iterating through an array

Answer 4

for (i = 0; i < myArray.length; ++i) {
   // Loop body accessing myArray[i]
}

Question 5

temporary variable

Answer 5

a variable used briefly to store a value (useful for swapping)

Question 6

enhanced for loop (or for each loop)

Answer 6

for loop that iterates through each element in an array

Question 7

loop variable

Answer 7

a variable whose scope is limited to the loop

Question 8

perfect size array

Answer 8

an array where the number of elements is exactly equal to the memory allocated

Question 9

oversize array

Answer 9

an array where the number of elements used is less than or equal to the memory allocated

Question 10

oversize array declaration

Answer 10

int[] myArray = new int[1000];

int myArraySize = 0;

Question 11

oversize arrays typically use three variables:

Answer 11

the array reference, the current size, and a constant for the array capacity

Question 12

a method that expects a perfect size array as an argument will have:

Answer 12

one parameter for the array reference, but no parameter for the array size

Question 13

a method that expects an oversize array will have:

Answer 13

two parameters to pass the array, one for the array reference and one for the array size

Question 14

a method can return at most:

Answer 14

one item

Question 15

side effect

Answer 15

an error that unintentionally modifies data

Question 16

how many tasks should a method perform?

Answer 16

one