Question 1

How would you create an array named someNumbers that holds three rows and four columns?

Accepted Answer

A)  int[][] someNumbers = new int[4][3] 
B)  int[][] someNumbers = new int[3][4] 
C)  int[] someNumbers = new int[3][4] 
D)  double[][] someNumbers = new int[3][4] 
A)  int[][] someNumbers = new int[4][3] 
B)  int[][] someNumbers = new int[3][4] 
C)  int[] someNumbers = new int[3][4] 
D)  double[][] someNumbers = new int[3][4] B

Question 2

Declare an ArrayList that declares a list of strings with a capacity of 20.

Accepted Answer

ArrayList names = new ArrayList (20);

Question 3

int[][] studentScores = {{70, 82, 90, 68}, 
{95, 75, 67, 89}, 
{98, 79, 57, 81}}; 
Using the above two-dimensional array, what is the value of studentScores[0][0] ? What is the value of studentScores[2][3] ? What is the value of studentScores[1][2] ? Describe how arrays reference values with subscripts.

Accepted Answer

studentScores[0][0] = 70 
studentScores[2][3] = 81 
studentScores[1][2] = 67 
The value within the first set of brackets following the array name refers to the row. 
The value within the second set of brackets refers to the column. Rows and columns begin with a value of 0.

Question 4

To declare a two-dimensional array in Java, you type two sets of ____ after the array type.

Accepted Answer

A)  .{ } 
B)  .[ ] 
C)  .( ) 
D)  .)( 
A)  .{ } 
B)  .[ ] 
C)  .( ) 
D)  .)(

Question 5

int[][] myVals = {{2, 4, 6},  {1, 8, 9},
 {1, 3, 5, 7}};
Using the above array, what is the value of myVals[1].length ?

Accepted Answer

A)  1 
B)  7 
C)  3 
D)  6 
A)  1 
B)  7 
C)  3 
D)  6

Question 6

The ArrayList class ____ method returns the current ArrayList size.

Accepted Answer

A)  size 
B)  capacity 
C)  length 
D)  rows 
A)  size 
B)  capacity 
C)  length 
D)  rows

Question 7

When using an insertion sort, each list element is examined one at a time and moved down if the tested element should be inserted before them.

Accepted Answer

A) True 
 B)False

Question 8

Write the statement to declare a three-by-four array of integers with the elements initialized to zero. Name the array myArray .

Accepted Answer

int[][] my

Question 9

Regarding enumerations, the ____ method returns the name of the calling constant object.

Accepted Answer

A)  toString 
B)  constName 
C)  ordinal 
D)  nameOf 
A)  toString 
B)  constName 
C)  ordinal 
D)  nameOf

Question 10

Which of the following describes a data type for which only appropriate behaviors are allowed?

Accepted Answer

A)  value-neutral 
B)  type-safe 
C)  enumerated value 
D)  data-cast 
A)  value-neutral 
B)  type-safe 
C)  enumerated value 
D)  data-cast

Question 11

In Java, you create an enumerated data type in a statement that uses the keyword ____.

Accepted Answer

A)  new 
B)  sequence 
C)  collection 
D)  enum 
A)  new 
B)  sequence 
C)  collection 
D)  enum

Question 12

What are some of the advantages of the ArrayList class over the Arrays class?

Accepted Answer

In addition to the Arrays class, Java pr

Question 13

Describe how to visualize the following array. How would you identify the location of the 99 that is stored in the array? 
int[][] someNumbers = {{8, 9, 10, 11}, 
{1, 3, 12, 15}, 
{5, 9, 44, 99} };

Accepted Answer

The someNumbers array contains three row

Question 14

The Arrays class ____ method puts a particular value in each element of the array.

Accepted Answer

A)  binarySearch 
B)  fill 
C)  equals 
D)  search 
A)  binarySearch 
B)  fill 
C)  equals 
D)  search

Question 15

int[][] myVals = {{10, 15, 20, 25}, 
 {30, 35, 40, 45, 50, 55, 60}, 
 {65, 70, 75, 80, 85, 90}}; 
Using the above array, what is the value of myVals.length ? What is the value of myVals[1].length ? What is the value of myVals[2].length ? Explain how you determined these values.

Accepted Answer

When working with a two-dimensional arra

Question 16

Since the Arrays class is part of the java.util package, you can use the java.util.*; import statement to access it.

Accepted Answer

A) True 
 B)False

Question 17

When working with two-dimensional arrays, the length field holds the number of rows in an array and each row has a length field that holds the number of columns in the row.

Accepted Answer

A) True 
 B)False

Question 18

When you start with the object that has the largest value, you are sorting in ____________________ order.

Accepted Answer

The answer of When you start with the object that...

Question 19

How can you pass a two-dimensional array to a method? Provide some examples.

Accepted Answer

When you pass a two-dimensional array to

Question 20

Write the statement that assigns the integer value 20 to the first column of the first row of an array named myVals .

Accepted Answer

The answer of Write the statement that assigns the integer...

How would you create an array named someNumbers that holds three rows and four columns?

Declare an ArrayList that declares a list of strings with a capacity of 20.

To declare a two-dimensional array in Java, you type two sets of ____ after the array type.

int[][] myVals = {{2, 4, 6}, {1, 8, 9}, {1, 3, 5, 7}}; Using the above array, what is the value of myVals[1].length ?

The ArrayList class ____ method returns the current ArrayList size.

When using an insertion sort, each list element is examined one at a time and moved down if the tested element should be inserted before them.

Write the statement to declare a three-by-four array of integers with the elements initialized to zero. Name the array myArray .

Regarding enumerations, the ____ method returns the name of the calling constant object.

Which of the following describes a data type for which only appropriate behaviors are allowed?

In Java, you create an enumerated data type in a statement that uses the keyword ____.

What are some of the advantages of the ArrayList class over the Arrays class?

Describe how to visualize the following array. How would you identify the location of the 99 that is stored in the array? int[][] someNumbers = {{8, 9, 10, 11}, {1, 3, 12, 15}, {5, 9, 44, 99} };

The Arrays class ____ method puts a particular value in each element of the array.

int[][] myVals = {{10, 15, 20, 25}, {30, 35, 40, 45, 50, 55, 60}, {65, 70, 75, 80, 85, 90}}; Using the above array, what is the value of myVals.length ? What is the value of myVals[1].length ? What is the value of myVals[2].length ? Explain how you determined these values.

Since the Arrays class is part of the java.util package, you can use the java.util.*; import statement to access it.

When working with two-dimensional arrays, the length field holds the number of rows in an array and each row has a length field that holds the number of columns in the row.

When you start with the object that has the largest value, you are sorting in ____________________ order.

How can you pass a two-dimensional array to a method? Provide some examples.

Write the statement that assigns the integer value 20 to the first column of the first row of an array named myVals .

Creating Java Programs

Using Data

Using Methods Classes and Objects

More Object Concepts

Making Decisions

Looping

Characters Strings and the Stringbuilder

Arrays

Introduction to Inheritance

Advanced Inheritance Concepts

Exception Handling

File Input and Output

Introduction to Swing Components

Advanced Gui Topics

Graphics

Filters

Exam 9: Advanced Array Concepts

How would you create an array named someNumbers that holds three rows and four columns?

Declare an ArrayList that declares a list of strings with a capacity of 20.

To declare a two-dimensional array in Java, you type two sets of ____ after the array type.

int[][] myVals = {{2, 4, 6}, {1, 8, 9}, {1, 3, 5, 7}}; Using the above array, what is the value of myVals[1].length ?

The ArrayList class ____ method returns the current ArrayList size.

When using an insertion sort, each list element is examined one at a time and moved down if the tested element should be inserted before them.

Write the statement to declare a three-by-four array of integers with the elements initialized to zero. Name the array myArray .

Regarding enumerations, the ____ method returns the name of the calling constant object.

Which of the following describes a data type for which only appropriate behaviors are allowed?

In Java, you create an enumerated data type in a statement that uses the keyword ____.

What are some of the advantages of the ArrayList class over the Arrays class?

Describe how to visualize the following array. How would you identify the location of the 99 that is stored in the array? int[][] someNumbers = {{8, 9, 10, 11}, {1, 3, 12, 15}, {5, 9, 44, 99} };

The Arrays class ____ method puts a particular value in each element of the array.

int[][] myVals = {{10, 15, 20, 25}, {30, 35, 40, 45, 50, 55, 60}, {65, 70, 75, 80, 85, 90}}; Using the above array, what is the value of myVals.length ? What is the value of myVals[1].length ? What is the value of myVals[2].length ? Explain how you determined these values.

Since the Arrays class is part of the java.util package, you can use the java.util.*; import statement to access it.

When working with two-dimensional arrays, the length field holds the number of rows in an array and each row has a length field that holds the number of columns in the row.

When you start with the object that has the largest value, you are sorting in ____________________ order.

How can you pass a two-dimensional array to a method? Provide some examples.

Write the statement that assigns the integer value 20 to the first column of the first row of an array named myVals .

Creating Java Programs

Using Data

Using Methods Classes and Objects

More Object Concepts

Making Decisions

Looping

Characters Strings and the Stringbuilder

Arrays

Introduction to Inheritance

Advanced Inheritance Concepts

Exception Handling

File Input and Output

Introduction to Swing Components

Advanced Gui Topics

Graphics

Filters