Question 1

The print and the println methods are identical and can be used interchangeably.

Accepted Answer

A) True 
 B)False

Question 2

Consider the expression: result = 15 % 4;
What value stored in result after this line is executed?

Accepted Answer

A)  0 
B)  1 
C)  2 
D)  3 
E)  4 
A)  0 
B)  1 
C)  2 
D)  3 
E)  4

Question 3

Promotion is a widening data conversion that is explicitly requested by the programmer.

Accepted Answer

A) True 
 B)False

Question 4

Variables declared with the final modifier cannot have new values assigned to them.

Accepted Answer

A) True 
 B)False

Question 5

Write an application that prints out the following using a single call to the print method.

Hello!
How
are you?

Accepted Answer

public class QuestionOne {
pub

Question 6

Which of the following is not an arithmetic operation in Java?

Accepted Answer

A)  + 
B)  - 
C)  * 
D)  % 
E)  These are all arithmetic operations in Java 
A)  + 
B)  - 
C)  * 
D)  % 
E)  These are all arithmetic operations in Java

Question 7

Consider the following snippet of code: System.out.println("30 plus 25 is " + 30 + 25);
What is printed by this line?

Accepted Answer

A)  30 plus 25 is 55 
B)  30 plus 25 is 30 
C)  30 plus 25 is 25 
D)  30 plus 25 is 3025 
E)  this snippet of code will result in a compiler error 
A)  30 plus 25 is 55 
B)  30 plus 25 is 30 
C)  30 plus 25 is 25 
D)  30 plus 25 is 3025 
E)  this snippet of code will result in a compiler error

Question 8

Java is a strongly-typed language.

Accepted Answer

A) True 
 B)False

Question 9

The byte type can be assigned a larger range of numbers than the int type.

Accepted Answer

A) True 
 B)False

Question 10

In order to make a variable a constant which modifier must be included in its declaration?

Accepted Answer

A)  public 
B)  final 
C)  static 
D)  void 
E)  private 
A)  public 
B)  final 
C)  static 
D)  void 
E)  private

Question 11

Write a single line of Java code that computes the average of three integer variables - num1, num2, and num3 - and stores the result in a variable of type double called result.

Accepted Answer

Note that in order to compute an accurat

Question 12

What are some reasons that you might want to declare a variable as final?

Accepted Answer

A variable that is declared as final is

Question 13

Write a short application that computes the perimeter of a rectangle. It should allow the user to input the length and width of the rectangle as a double.

Accepted Answer

import java.util.Scanner;
public class P

Question 14

Consider the following snippet of code:
 
What values are stored in firstNum, secondNum and thirdNum after these lines are executed? Explain your answer.

Accepted Answer

After the second line is executed, secon

Question 15

How are primitive data types and object data types related?

Accepted Answer

Object types are mor

Question 16

Java uses the ASCII character set to represent character data.

Accepted Answer

A) True 
 B)False

Question 17

For the following expression, indicate the order that in which the operators will be evaluated.
a + b * c / (d -
e)

Accepted Answer

d - e will be evaluated first

Question 18

Java has two basic kinds of numeric values: _____________, which have no fractional part, and ___________________ which do.

Accepted Answer

A)  shorts, longs 
B)  doubles, floating points 
C)  characters, bytes 
D)  integers, floating points 
E)  integers, longs 
A)  shorts, longs 
B)  doubles, floating points 
C)  characters, bytes 
D)  integers, floating points 
E)  integers, longs

Question 19

Consider the following snippet of code.
int iResult;
 
What values are stored in iResult, rResult and fResult? Explain your answers.

Accepted Answer

The value that is stored in iResult is 3

Question 20

Which of the following is an example of an invalid expression in Java?

Accepted Answer

A)  result = a + b; 
B)  result = (14 + 9) * 5; 
C)  result = ((19 + 4) - 5; 
D)  result = firstNum % secondNum; 
E)  result = firstNum / secondNum % thirdNum; 
A)  result = a + b; 
B)  result = (14 + 9) * 5; 
C)  result = ((19 + 4) - 5; 
D)  result = firstNum % secondNum; 
E)  result = firstNum / secondNum % thirdNum;

The print and the println methods are identical and can be used interchangeably.

Consider the expression: result = 15 % 4; What value stored in result after this line is executed?

Promotion is a widening data conversion that is explicitly requested by the programmer.

Variables declared with the final modifier cannot have new values assigned to them.

Write an application that prints out the following using a single call to the print method. Hello! How are you?

Which of the following is not an arithmetic operation in Java?

Consider the following snippet of code: System.out.println("30 plus 25 is " + 30 + 25); What is printed by this line?

Java is a strongly-typed language.

The byte type can be assigned a larger range of numbers than the int type.

In order to make a variable a constant which modifier must be included in its declaration?

Write a single line of Java code that computes the average of three integer variables - num1, num2, and num3 - and stores the result in a variable of type double called result.

What are some reasons that you might want to declare a variable as final?

Write a short application that computes the perimeter of a rectangle. It should allow the user to input the length and width of the rectangle as a double.

Consider the following snippet of code: What values are stored in firstNum, secondNum and thirdNum after these lines are executed? Explain your answer.

How are primitive data types and object data types related?

Java uses the ASCII character set to represent character data.

For the following expression, indicate the order that in which the operators will be evaluated. a + b * c / (d - e)

Java has two basic kinds of numeric values: _, which have no fractional part, and _______ which do.

Consider the following snippet of code. int iResult; What values are stored in iResult, rResult and fResult? Explain your answers.

Which of the following is an example of an invalid expression in Java?

Introduction

Using Classes and Objects

Conditionals and Loops

Writing Classes

Graphical User Interfaces

Arrays

Inheritance

Polymorphism

Recursion

Exceptions

Searching and Sorting

Trees

Introduction to Collections and Stacks

Heaps and Priority Queues

Graphs

Filters

Exam 2: Data and Expressions

The print and the println methods are identical and can be used interchangeably.

Consider the expression: result = 15 % 4; What value stored in result after this line is executed?

Promotion is a widening data conversion that is explicitly requested by the programmer.

Variables declared with the final modifier cannot have new values assigned to them.

Write an application that prints out the following using a single call to the print method. Hello! How are you?

Which of the following is not an arithmetic operation in Java?

Consider the following snippet of code: System.out.println("30 plus 25 is " + 30 + 25); What is printed by this line?

Java is a strongly-typed language.

The byte type can be assigned a larger range of numbers than the int type.

In order to make a variable a constant which modifier must be included in its declaration?

Write a single line of Java code that computes the average of three integer variables - num1, num2, and num3 - and stores the result in a variable of type double called result.

What are some reasons that you might want to declare a variable as final?

Write a short application that computes the perimeter of a rectangle. It should allow the user to input the length and width of the rectangle as a double.

Consider the following snippet of code: What values are stored in firstNum, secondNum and thirdNum after these lines are executed? Explain your answer.

How are primitive data types and object data types related?

Java uses the ASCII character set to represent character data.

For the following expression, indicate the order that in which the operators will be evaluated. a + b * c / (d - e)

Java has two basic kinds of numeric values: _____________, which have no fractional part, and ___________________ which do.

Consider the following snippet of code. int iResult; What values are stored in iResult, rResult and fResult? Explain your answers.

Which of the following is an example of an invalid expression in Java?

Introduction

Using Classes and Objects

Conditionals and Loops

Writing Classes

Graphical User Interfaces

Arrays

Inheritance

Polymorphism

Recursion

Exceptions

Searching and Sorting

Trees

Introduction to Collections and Stacks

Heaps and Priority Queues

Graphs

Filters

Java has two basic kinds of numeric values: _, which have no fractional part, and _______ which do.