Question 1

All arrays are objects of the base type ____ class.

Accepted Answer

A)  Object 
B)  Base 
C)  Super 
D)  Array 
A)  Object 
B)  Base 
C)  Super 
D)  Array

Question 2

Array elements are normally stored in contiguous, side-by-side, memory locations with the first index in all arrays being referenced by index 0.

Accepted Answer

A) True 
 B)False

Question 3

Array.Copy(waterDepth, 2, w, 0, 5); 
 The Copy( ) method, shown above, is a(n) ____________ method.

Accepted Answer

The answer of Array.Copy(waterDepth, 2, w, 0, 5); 
 The...

Question 4

If you do not know the size of the array needed, you can create an array large enough to hold any number of entries and tell users to enter a predetermined sentinel value after they enter the last value. Using this approach:

Accepted Answer

A)  requires that you increment a counter as values are entered so that you know how many elements are stored in your array 
B)  is preferred to defining a static sized array. 
C)  requires that you dimension the array to hold at least 100 entries. 
D)  requires the array be defined to hold string elements. 
A)  requires that you increment a counter as values are entered so that you know how many elements are stored in your array 
B)  is preferred to defining a static sized array. 
C)  requires that you dimension the array to hold at least 100 entries. 
D)  requires the array be defined to hold string elements.

Question 5

All arrays, of any type, inherit characteristics from the ____________ class, which includes a number of predefined methods and properties.

Accepted Answer

The answer of All arrays, of any type, inherit characteristics...

Question 6

double [ ] price = new double [ ] {3, 2.2, 4.7, 6.1, 4}; 
 With the declaration above, price[2] refers to 2.2.

Accepted Answer

A) True 
 B)False

Question 7

When you do a compile-time initialization of array elements, values are separated by ____________.

Accepted Answer

The answer of When you do a compile-time initialization of...

Question 8

The first element of an array is always referenced by index ____________.

Accepted Answer

The answer of The first element of an array is...

Question 9

BinarySearch( ) is ____.

Accepted Answer

A)  a method in the Array class 
B)  an instance method 
C)  usable as long as you declare an array 
D)  must be used with integer arguments 
A)  a method in the Array class 
B)  an instance method 
C)  usable as long as you declare an array 
D)  must be used with integer arguments

Question 10

In C# the length of an array cannot be changed. After it is instantiated with a length, dynamic resizing is not an option.

Accepted Answer

A) True 
 B)False

Question 11

Which loop structure can be used to change the contents of the array?

Accepted Answer

A)  for 
B)  foreach 
C)  loop 
D)  if / else 
A)  for 
B)  foreach 
C)  loop 
D)  if / else

Question 12

When you pass an array to a method, by default, a copy of each element in the array is made and passed to the method.

Accepted Answer

A) True 
 B)False

Question 13

To create an array to hold the 5 numeric scores, you could write ____________.

Accepted Answer

int [ ] sc

Question 14

The type used in the foreach expression must match the array type.

Accepted Answer

A) True 
 B)False

Question 15

All data values placed in an array must be of the same ____________.

Accepted Answer

The answer of All data values placed in an array...

Question 16

int [ ] anArray = new int [10];
Int [ ] anotherArray = {6, 7, 4, 5, 6, 2, 3, 5, 9, 1};
How could all values of anotherArray be totaled?

Accepted Answer

A)  foreach(int val in anotherArray)     total += val; 
B)  for (int i = 0; i     total += anotherArray; 
C)  Array.Sum(anotherArray) 
D)  all of the above 
A)  foreach(int val in anotherArray)     total += val; 
B)  for (int i = 0; i     total += anotherArray; 
C)  Array.Sum(anotherArray) 
D)  all of the above

Question 17

Which of the following can be used to return an index of an item in an array?

Accepted Answer

A)  LastIndexOf( ) 
B)  Index( ) 
C)  Find( ) 
D)  SetValue( ) 
A)  LastIndexOf( ) 
B)  Index( ) 
C)  Find( ) 
D)  SetValue( )

Question 18

Arrays are ____________ variables. The array identifier memory location does not actually contain the values, but instead stores an address indicating the location of the first element in the array.

Accepted Answer

The answer of Arrays are ____________ variables. The array identifier...

Question 19

There are several ways to do a compile-time initialization of arrays. All of the following are valid ways EXCEPT ____.

Accepted Answer

A)  int [ ] anArray = {100, 100, 100}; 
B)  int [ ] anArray = new int [ ] {100, 100, 100}; 
C)  int [ ] anArray = new int [3 ] {100, 100, 100}; 
D)  int [ ] anArray = new int [10 ] {100, 100, 100}; 
A)  int [ ] anArray = {100, 100, 100}; 
B)  int [ ] anArray = new int [ ] {100, 100, 100}; 
C)  int [ ] anArray = new int [3 ] {100, 100, 100}; 
D)  int [ ] anArray = new int [10 ] {100, 100, 100};

Question 20

int [ ] anArray = new int [10]; int [ ] anotherArray = {6, 7, 4, 5, 6, 2, 3, 5, 9, 1};
For (int i = 0; i < anotherArray.Length; i++)
Total += i;
Using the above declaration along with the for loop, what is stored in total after the program statements are executed?

Accepted Answer

A)  10 
B)  2 
C)  48 
D)  45 
A)  10 
B)  2 
C)  48 
D)  45

All arrays are objects of the base type ____ class.

Array elements are normally stored in contiguous, side-by-side, memory locations with the first index in all arrays being referenced by index 0.

Array.Copy(waterDepth, 2, w, 0, 5); The Copy( ) method, shown above, is a(n) ____________ method.

If you do not know the size of the array needed, you can create an array large enough to hold any number of entries and tell users to enter a predetermined sentinel value after they enter the last value. Using this approach:

All arrays, of any type, inherit characteristics from the ____________ class, which includes a number of predefined methods and properties.

double [ ] price = new double [ ] {3, 2.2, 4.7, 6.1, 4}; With the declaration above, price[2] refers to 2.2.

When you do a compile-time initialization of array elements, values are separated by ____________.

The first element of an array is always referenced by index ____________.

BinarySearch( ) is ____.

In C# the length of an array cannot be changed. After it is instantiated with a length, dynamic resizing is not an option.

Which loop structure can be used to change the contents of the array?

When you pass an array to a method, by default, a copy of each element in the array is made and passed to the method.

To create an array to hold the 5 numeric scores, you could write ____________.

The type used in the foreach expression must match the array type.

All data values placed in an array must be of the same ____________.

int [ ] anArray = new int [10]; Int [ ] anotherArray = {6, 7, 4, 5, 6, 2, 3, 5, 9, 1}; How could all values of anotherArray be totaled?

Which of the following can be used to return an index of an item in an array?

Arrays are ____________ variables. The array identifier memory location does not actually contain the values, but instead stores an address indicating the location of the first element in the array.

There are several ways to do a compile-time initialization of arrays. All of the following are valid ways EXCEPT ____.

int [ ] anArray = new int [10]; int [ ] anotherArray = {6, 7, 4, 5, 6, 2, 3, 5, 9, 1}; For (int i = 0; i < anotherArray.Length; i++) Total += i; Using the above declaration along with the for loop, what is stored in total after the program statements are executed?

Introduction to Computing and Programming

Data Types and Expressions

Methods and Behaviors

Creating Your Own Classes

Making Decisions

Repeating Instructions

Advanced Collections

Introduction to Windows Programming

Programming Based on Events

Advanced Object-Oriented Programming Features

Debugging and Handling Exceptions

Working With Files

Working With Databases

Web-Based Applications

Filters

Exam 7: Arrays

All arrays are objects of the base type ____ class.

Array elements are normally stored in contiguous, side-by-side, memory locations with the first index in all arrays being referenced by index 0.

Array.Copy(waterDepth, 2, w, 0, 5); The Copy( ) method, shown above, is a(n) ____________ method.

If you do not know the size of the array needed, you can create an array large enough to hold any number of entries and tell users to enter a predetermined sentinel value after they enter the last value. Using this approach:

All arrays, of any type, inherit characteristics from the ____________ class, which includes a number of predefined methods and properties.

double [ ] price = new double [ ] {3, 2.2, 4.7, 6.1, 4}; With the declaration above, price[2] refers to 2.2.

When you do a compile-time initialization of array elements, values are separated by ____________.

The first element of an array is always referenced by index ____________.

BinarySearch( ) is ____.

In C# the length of an array cannot be changed. After it is instantiated with a length, dynamic resizing is not an option.

Which loop structure can be used to change the contents of the array?

When you pass an array to a method, by default, a copy of each element in the array is made and passed to the method.

To create an array to hold the 5 numeric scores, you could write ____________.

The type used in the foreach expression must match the array type.

All data values placed in an array must be of the same ____________.

int [ ] anArray = new int [10]; Int [ ] anotherArray = {6, 7, 4, 5, 6, 2, 3, 5, 9, 1}; How could all values of anotherArray be totaled?

Which of the following can be used to return an index of an item in an array?

Arrays are ____________ variables. The array identifier memory location does not actually contain the values, but instead stores an address indicating the location of the first element in the array.

There are several ways to do a compile-time initialization of arrays. All of the following are valid ways EXCEPT ____.

int [ ] anArray = new int [10]; int [ ] anotherArray = {6, 7, 4, 5, 6, 2, 3, 5, 9, 1}; For (int i = 0; i < anotherArray.Length; i++) Total += i; Using the above declaration along with the for loop, what is stored in total after the program statements are executed?

Introduction to Computing and Programming

Data Types and Expressions

Methods and Behaviors

Creating Your Own Classes

Making Decisions

Repeating Instructions

Advanced Collections

Introduction to Windows Programming

Programming Based on Events

Advanced Object-Oriented Programming Features

Debugging and Handling Exceptions

Working With Files

Working With Databases

Web-Based Applications

Filters