Question 1

Which set of statements totals the items in each row of two-dimensional array items,and displays each total

Accepted Answer

A)  
int total = 0;

for (int row = 0; row < items.Length; ++row)
{
   total = 0;

for (int column = 0; column < a[row].Length; ++column)
   {
      total += a[row][column];
   }
} 
B)  
int total = 0;

for (int row = 0; row < items. Length; ++row)
{
   for (int column = 0; column < a[row]. Length; ++column)
   {
      total += a[row][column];
   }
} 
C)  
int total = 0;

for (int row = 0; row < items. Length; ++row)
{
   for (int column = 0; column < a[column].length; ++column)
   {
      total += a[row][column];
   }
} 
D)  
int total = 0;

for (int row = 0; row < items. Length; ++row)
{
   total = 0;

for (int column = 0; column < a[column].length; ++column)
   {
      total += a[row][column];
   }
} 
A)  
int total = 0;

for (int row = 0; row < items.Length; ++row)
{
   total = 0;

for (int column = 0; column < a[row].Length; ++column)
   {
      total += a[row][column];
   }
} 
B)  
int total = 0;

for (int row = 0; row < items. Length; ++row)
{
   for (int column = 0; column < a[row]. Length; ++column)
   {
      total += a[row][column];
   }
} 
C)  
int total = 0;

for (int row = 0; row < items. Length; ++row)
{
   for (int column = 0; column < a[column].length; ++column)
   {
      total += a[row][column];
   }
} 
D)  
int total = 0;

for (int row = 0; row < items. Length; ++row)
{
   total = 0;

for (int column = 0; column < a[column].length; ++column)
   {
      total += a[row][column];
   }
} A

Question 2

C# automatically performs bounds checking to ensure the program doesn't access data outside the bounds of an array.

Accepted Answer

A) True 
 B)False  True

Question 3

Arrays are data structures that may consist of data items of different types.

Accepted Answer

A) True 
 B)False  False

Question 4

Tables are often represented with rectangular arrays.

Accepted Answer

A) True 
 B)False

Question 5

Constant variables also are called.

Accepted Answer

A)  write-only variables 
B)  finals 
C)  named constants 
D)  All of the above 
A)  write-only variables 
B)  finals 
C)  named constants 
D)  All of the above

Question 6

Arrays can hold simple types and reference types.

Accepted Answer

A) True 
 B)False

Question 7

The foreach statement can be used only with one-dimensional arrays.

Accepted Answer

A) True 
 B)False

Question 8

The keyword _______ overrides an existing method with the same signature.

Accepted Answer

A) replace 
B)  override 
A) replace 
B)  override

Question 9

The params modifier can be used anywhere in the method's header.

Accepted Answer

A) True 
 B)False

Question 10

The foreach repetition statement requires that you provide an array and a variable for the purpose of:

Accepted Answer

A)  preventing the structure from going past the end of the array 
B)  storing the value of each element that is traversed 
C)  acting as a counter to traverse the array 
D)  None of the above. 
A)  preventing the structure from going past the end of the array 
B)  storing the value of each element that is traversed 
C)  acting as a counter to traverse the array 
D)  None of the above.

Question 11

The position number in parentheses is formally called an index.

Accepted Answer

A) True 
 B)False

Question 12

A constant must be initialized in the same statement where it is declared and cannot be modified.

Accepted Answer

A) True 
 B)False

Question 13

When values are provided upon declaration of an array,the new keyword is not required.

Accepted Answer

A) True 
 B)False

Question 14

To protect the reference of an array,it should be passed to methods with key
word val.

Accepted Answer

A) True 
 B)False

Question 15

Arrays remain the same size once they're created.

Accepted Answer

A) True 
 B)False

Question 16

Invalid possibilities for array indices include.

Accepted Answer

A)  positive integers 
B)  negative integers 
C)  non-consecutive integers 
D)  zero 
A)  positive integers 
B)  negative integers 
C)  non-consecutive integers 
D)  zero

Question 17

The number of elements in an array must be specified in brackets after the array name in the declaration.

Accepted Answer

A) True 
 B)False

Question 18

Arrays are data structures.

Accepted Answer

A)  constant 
B)  dynamic 
C)  static 
D)  None of the above. 
A)  constant 
B)  dynamic 
C)  static 
D)  None of the above.

Question 19

The index of an array must be an integer;it cannot include variables or expres
sions.

Accepted Answer

A) True 
 B)False

Question 20

Consider the code segment below.Which of the following statements is false
Int[] g;
G = new int[23];

Accepted Answer

A)  The first statement declares an array reference. 
B)  The second statement creates the array. 
C)  g is a reference to an array of integers. 
D)  The value of g[3] is -1. 
A)  The first statement declares an array reference. 
B)  The second statement creates the array. 
C)  g is a reference to an array of integers. 
D)  The value of g[3] is -1.

Exam 8: Arrays;Introduction to Exception Handling

Which set of statements totals the items in each row of two-dimensional array items,and displays each total

C# automatically performs bounds checking to ensure the program doesn't access data outside the bounds of an array.

Arrays are data structures that may consist of data items of different types.

Tables are often represented with rectangular arrays.

Constant variables also are called.

Arrays can hold simple types and reference types.

The foreach statement can be used only with one-dimensional arrays.

The keyword _______ overrides an existing method with the same signature.

The params modifier can be used anywhere in the method's header.

The foreach repetition statement requires that you provide an array and a variable for the purpose of:

The position number in parentheses is formally called an index.

A constant must be initialized in the same statement where it is declared and cannot be modified.

When values are provided upon declaration of an array,the new keyword is not required.

To protect the reference of an array,it should be passed to methods with key word val.

Arrays remain the same size once they're created.

Invalid possibilities for array indices include.

The number of elements in an array must be specified in brackets after the array name in the declaration.

Arrays are data structures.

The index of an array must be an integer;it cannot include variables or expres sions.

Consider the code segment below.Which of the following statements is false Int[] g; G = new int[23];

Introduction to Computers, the Internet and Visual C#

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Control Statements: Part 1

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Introduction to Linq and Generic Collections

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Object-Oriented Programming: Inheritance

Object-Oriented Programming: Polymorphism

Exception Handling: A Deeper Look

GUI With Windows Forms: Part 1

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