comp 2

Question 1

Aside from the ______ programmers can also declare arrays that holds elements of OBJECTS.

Answer 1

primitive data types,

Question 2

true or false

Programmers can’t create separate Student objects with unique names.

Answer 2

false

can

Question 3

To use a method that belongs to an object that is part of an array,

Answer 3

you insert the appropriate subscript notation after the array name and before the dot that precedes the method name.

Question 4

stud is a _____ that represents each element of emps in turn.

Answer 4

local variable

Question 5

Using the enhanced for loop :

Answer 5

eliminates the need to use a limiting value for the loop and eliminates the need for a subscript following each element.

Question 6

In Java, programmers can also

Answer 6

create an array of String objects.

Question 7

Notice that subject.length; refers to the ______ and NOT TO THE LENGTH OF ANY STRING OBJECTS stored in the subject array.

Answer 7

length of the array subject (three elements)

Question 8

two things to remember in manipulating arrays of strings

Answer 8

Remember:

Arrays use a length field (no parentheses follow).

String objects use a length() method.

Question 9

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

Answer 9

Parallel Array

Question 10

Application of Parallel Arrays:

Answer 10

SEARCHING & SORTING.

Question 11

a variable that holds a value as an indicator of whether some condition has been met. Example: isValid.

Answer 11

Flag

Question 12

FILL N THE BLANKS!

Searching an array for an exact match is ___ _____ practical.

Answer 12

NOT ALWAYS

Question 13

comparing a value to the endpoints of numerical ranges to find the category in which a value belongs.

Answer 13

Range Match

Question 14

The individual array elements are ______

Answer 14

passed by value;

Question 15

passed by value; that is, a copy of the value is _____

Answer 15

made and used within the receiving method

Question 16

When any primitive type (boolean, char, byte, short, int, long, float, or double) is passed to a method, the ____ is passed.

Answer 16

value

Question 17

Arrays, like all nonprimitive objects, are ___; this means that the object actually holds a memory address where the values are stored.

Answer 17

reference types

Question 18

Arrays, like all nonprimitive objects, are reference type; this means that ______

Answer 18

the object actually holds a memory address where the values are stored.

Question 19

Because an array name is a ____, you cannot assign another array to it using the _ operator, nor can you compare two arrays using the __ operator.

Answer 19

reference

==

Question 20

Additionally, when you pass an array (that is, pass its name) to a method, _________.

Answer 20

the receiving method gets a copy of the array’s actual memory address

Question 21

This means that the receiving method has access

Answer 21

to, and the ability to alter, the original values in the array elements in the calling method.

Question 22

A method can _______, and when it does, you include _____ with the _____ in the method header.

Answer 22

return an array reference
square brackets
return type

Question 23

are used as part of the return type; the return statement returns the array name without any brackets.

Answer 23

Square brackets

Question 24

Call method:

Answer 24

int[] scoresFromMethod = getArray();