Chapter 8 Java: Arrays

holds values that correspond to those in another array

A parallel array is one that ____.

value

A single array element of a primitive type is passed to a method by _____.

all have the same type

An array is a list of data items that

A named list of data items that all have the same type.

Array

for(x=0;x<4;x++) num[x]=100

Assume an array is declared as follows. What statement correctly assigns the value 100 to each of the array elements? int[] num = new int[4];

One variable or object in an array.

Element

allows you to cycle through an array without specifying the starting and ending points for the loop control variable.

Enhanced for loop

the return type in the method header is followed by square brackets

If a method should return an array to its calling method _____.

all of them

In Java, you can declare an array of 12 elements and initialize ____

You need to look up an employee's ID number to find the employee's last name.

In what situation would setting up parallel arrays be most useful?

A subscript

Index

A series of values provided for an array when it's declared.

Initialization list

one with the same number of elements as another, and for which the values in corresponding elements are related.

Parallel array

Describes what happens when a variable is passed to a method and a copy is made in the receiving method.

Passed by a value

Describes what happens when a reference (address) is passed to a method.

Passed by reference

the act of providing values for all the elements.

Populating an array

Property of an object is an instance variable or field.

Property

is the process of comparing a value to the endpoint of numerical ranges to find a category in which the value belongs

Range Match

the process of comparing a value to a list of values in an array, looking for a match.

Searching an array

An integer contained within square brackets that indicates one of an array's elements.

Subscript

3

Suppose you have declared an array as follows: int[] creditScores = {670, 720, 815}; What is the value of creditScores.length?

a copy of the value in the element

When you pass an array element to a method, the method receives ________.

the address of the array

When you pass an array to a method, the method receives ________.

use the keyword new

You reserve memory locations for an array when you ____.

references

array names represent__________

a variable that holds a value (often True and False) as an indicator of whether some condition has been met.

flag

c.34

for how many integers does the following statement reserve room? int [] value = new int [34];

an enhanced for loop.

foreach loop

num[5]

if declare an array as follows, how do you indicate the final element of the array ? int [] num = new int [6]

303

if you declare an integer array as follows, what is the value of num [2]? int [] num = {101,202,303,404,505,606};

null

unicode '\u0000' is also known as

you might reserve memory for it in the same statement

when you declare an array,

do not explicitly give the array a size

when you initialize an array by giving it values upon creation, you_________

int

which of the following can be used as an array subscript?