Question 1

If an array named num is dimensioned to hold 10 values,what happens if you write num[100] = 50;?

Accepted Answer

A)  A compilation error will be generated 
B)  A runtime error will be generated 
C)  50 will be stored at the 100th indexed location 
D)  50 will be stored at the last legal location 
A)  A compilation error will be generated 
B)  A runtime error will be generated 
C)  50 will be stored at the 100th indexed location 
D)  50 will be stored at the last legal location

Question 2

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 3

You create an array in much the same way you instantiate an object of a user-defined class,by using the new keyword at the time of declaration.

Accepted Answer

A) True 
 B)False

Question 4

int [ ] anArray = new int[24];
-Array identifiers are normally defined using a plural noun.

Accepted Answer

A) True 
 B)False

Question 5

Arrays can be sent to methods as arguments,and methods can have arrays as their return type.

Accepted Answer

A) True 
 B)False

Question 6

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

Question 7

If you use the params parameter type,params must appear both in the formal parameter list of the method heading and in the actual argument list.

Accepted Answer

A) True 
 B)False

Question 8

One of the special properties in the Array class is ____________.It returns an int representing the total number of elements in an array.

Accepted Answer

The answer of One of the special properties in the...

Question 9

Given an array declared to hold 100 values,the smallest index that can be used with the array is ____.

Accepted Answer

A)  based on what index is used when the first value is placed in the array 
B)  1 
C)  0 
D)  undetermined 
A)  based on what index is used when the first value is placed in the array 
B)  1 
C)  0 
D)  undetermined

Question 10

If an array is to be sent to a method,which of the following is a valid heading for a method?

Accepted Answer

A)  void DisplayOutput(double [ ] anArray) 
B)  void DisplayOutput(double [10 ] anArray) 
C)  void DisplayOutput(double anArray) 
D)  void DisplayOutput(double anArray [10]) 
A)  void DisplayOutput(double [ ] anArray) 
B)  void DisplayOutput(double [10 ] anArray) 
C)  void DisplayOutput(double anArray) 
D)  void DisplayOutput(double anArray [10])

Question 11

int [ ] anArray = new int[24];
-You can instantiate arrays of user-defined array objects and send in arrays as arguments to methods,but you cannot return arrays from methods.

Accepted Answer

A) True 
 B)False

Question 12

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 13

int [ ] anArray = new int[24];
-For the above declaration,25 cells are set aside for the array since the first element is referenced by index 0.

Accepted Answer

A) True 
 B)False

Question 14

If you try to access the array using a negative index value,____.

Accepted Answer

A)  a compilation error will be generate 
B)  a runtime error will be generated 
C)  the indexed location will be used. The computer will access memory to the left of the array 
D)  the smallest indexed location will be accessed 
A)  a compilation error will be generate 
B)  a runtime error will be generated 
C)  the indexed location will be used. The computer will access memory to the left of the array 
D)  the smallest indexed location will be accessed

Question 15

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 16

With parallel arrays,the relationship is established through using the same subscript or index to refer to the elements in both arrays.

Accepted Answer

A) True 
 B)False

Question 17

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 18

When you use the assignment operator with an array,individual elements are copied to another memory location.

Accepted Answer

A) True 
 B)False

Question 19

int [ ] anArray = new int[24];
-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 20

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

If an array named num is dimensioned to hold 10 values,what happens if you write num[100] = 50;?

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

You create an array in much the same way you instantiate an object of a user-defined class,by using the new keyword at the time of declaration.

int [ ] anArray = new int[24]; -Array identifiers are normally defined using a plural noun.

Arrays can be sent to methods as arguments,and methods can have arrays as their return type.

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?

If you use the params parameter type,params must appear both in the formal parameter list of the method heading and in the actual argument list.

One of the special properties in the Array class is ____________.It returns an int representing the total number of elements in an array.

Given an array declared to hold 100 values,the smallest index that can be used with the array is ____.

If an array is to be sent to a method,which of the following is a valid heading for a method?

int [ ] anArray = new int[24]; -You can instantiate arrays of user-defined array objects and send in arrays as arguments to methods,but you cannot return arrays from methods.

BinarySearch( )is ____.

int [ ] anArray = new int[24]; -For the above declaration,25 cells are set aside for the array since the first element is referenced by index 0.

If you try to access the array using a negative index value,____.

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

With parallel arrays,the relationship is established through using the same subscript or index to refer to the elements in both arrays.

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:

When you use the assignment operator with an array,individual elements are copied to another memory location.

int [ ] anArray = new int[24]; -Array elements are normally stored in contiguous,side-by-side,memory locations with the first index in all arrays being referenced by index 0.

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

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

If an array named num is dimensioned to hold 10 values,what happens if you write num[100] = 50;?

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

You create an array in much the same way you instantiate an object of a user-defined class,by using the new keyword at the time of declaration.

int [ ] anArray = new int[24]; -Array identifiers are normally defined using a plural noun.

Arrays can be sent to methods as arguments,and methods can have arrays as their return type.

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?

If you use the params parameter type,params must appear both in the formal parameter list of the method heading and in the actual argument list.

One of the special properties in the Array class is ____________.It returns an int representing the total number of elements in an array.

Given an array declared to hold 100 values,the smallest index that can be used with the array is ____.

If an array is to be sent to a method,which of the following is a valid heading for a method?

int [ ] anArray = new int[24]; -You can instantiate arrays of user-defined array objects and send in arrays as arguments to methods,but you cannot return arrays from methods.

BinarySearch( )is ____.

int [ ] anArray = new int[24]; -For the above declaration,25 cells are set aside for the array since the first element is referenced by index 0.

If you try to access the array using a negative index value,____.

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

With parallel arrays,the relationship is established through using the same subscript or index to refer to the elements in both arrays.

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:

When you use the assignment operator with an array,individual elements are copied to another memory location.

int [ ] anArray = new int[24]; -Array elements are normally stored in contiguous,side-by-side,memory locations with the first index in all arrays being referenced by index 0.

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

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