Question 1

In Java, boolean array elements automatically are assigned the value ____.

Accepted Answer

A)  null 
B)  '\u0000' 
C)  true 
D)  false 
A)  null 
B)  '\u0000' 
C)  true 
D)  false

Question 2

int[] multsOfTen = {10, 20, 30, 40, 50, 60}; 
The above code creates an array named multsOfTen . Describe how array sizes are determined when using an initialization list and how memory is assigned.

Accepted Answer

When you populate an array upon creation

Question 3

While you can provide any legal identifier you want for an array, conventional rules are typically followed. List and describe the naming conventions for naming arrays.

Accepted Answer

Java programmers conventionally name arr

Question 4

double[] studentScores = new double[3]; 
studentScores[0] = 93; 
studentScores[1] = 77; 
studentScores[2] = 85; 
Write a println statement to display the last element of the studentScores array.

Accepted Answer

System.out

Question 5

public class CostArray 
{ 
    public static void main(String[] args) 
    { 
       double[] costs = new double[3]; 
       costs[0] = 5.00; 
       costs[1] = 7.00; 
       costs[2] = 9.00; 
       System.out.println(costs[3]); 
    } 
} 
Once the above code is compiled and executed, an error message is generated. Explain the error message that will result and explain the reason for the error.

Accepted Answer

An out-of-bounds error is generated when

Question 6

When using an array with all elements used, why would a programmer use a loop control variable from 0 to one less than the size of the array? Give an example.

Accepted Answer

When an application contains an array an

In Java, boolean array elements automatically are assigned the value ____.

int[] multsOfTen = {10, 20, 30, 40, 50, 60}; The above code creates an array named multsOfTen . Describe how array sizes are determined when using an initialization list and how memory is assigned.

While you can provide any legal identifier you want for an array, conventional rules are typically followed. List and describe the naming conventions for naming arrays.

double[] studentScores = new double[3]; studentScores[0] = 93; studentScores[1] = 77; studentScores[2] = 85; Write a println statement to display the last element of the studentScores array.

When using an array with all elements used, why would a programmer use a loop control variable from 0 to one less than the size of the array? Give an example.

Creating Java Programs

Using Data

Using Methods Classes and Objects

More Object Concepts

Making Decisions

Looping

Characters Strings and the Stringbuilder

Advanced Array Concepts

Introduction to Inheritance

Advanced Inheritance Concepts

Exception Handling

File Input and Output

Introduction to Swing Components

Advanced Gui Topics

Graphics

Filters

Exam 8: Arrays

In Java, boolean array elements automatically are assigned the value ____.

int[] multsOfTen = {10, 20, 30, 40, 50, 60}; The above code creates an array named multsOfTen . Describe how array sizes are determined when using an initialization list and how memory is assigned.

While you can provide any legal identifier you want for an array, conventional rules are typically followed. List and describe the naming conventions for naming arrays.

double[] studentScores = new double[3]; studentScores[0] = 93; studentScores[1] = 77; studentScores[2] = 85; Write a println statement to display the last element of the studentScores array.

When using an array with all elements used, why would a programmer use a loop control variable from 0 to one less than the size of the array? Give an example.

Creating Java Programs

Using Data

Using Methods Classes and Objects

More Object Concepts

Making Decisions

Looping

Characters Strings and the Stringbuilder

Advanced Array Concepts

Introduction to Inheritance

Advanced Inheritance Concepts

Exception Handling

File Input and Output

Introduction to Swing Components

Advanced Gui Topics

Graphics

Filters