Question 1

Which of the following statements about the conditional operator (?:) is false?

Accepted Answer

A)  The conditional operator is a ternary operator, meaning that it takes three operands. 
B)  The first operand is a boolean expression. 
C)  The second operand is the result value if the condition evaluates to false. 
D)  The second operand is the result value if the condition evaluates to true. 
A)  The conditional operator is a ternary operator, meaning that it takes three operands. 
B)  The first operand is a boolean expression. 
C)  The second operand is the result value if the condition evaluates to false. 
D)  The second operand is the result value if the condition evaluates to true.

Question 2

Which of the following statements is true?

Accepted Answer

A)  A while statement cannot be nested inside another while statement. 
B)  An if statement cannot be nested inside another if statement. 
C)  A while statement cannot be nested inside an if statement. 
D)  None of the above is true. 
A)  A while statement cannot be nested inside another while statement. 
B)  An if statement cannot be nested inside another if statement. 
C)  A while statement cannot be nested inside an if statement. 
D)  None of the above is true.

Question 3

Which of the following is not a Java keyword?

Accepted Answer

A)  do 
B)  next 
C)  while 
D)  for 
A)  do 
B)  next 
C)  while 
D)  for

Question 4

Which of the following is the shape of an action-state symbol?

Accepted Answer

A)  Diamond. 
B)  Circle. 
C)  Rectangle with left and right sides replaced with arcs curving outward. 
D)  Rounded rectangle. 
A)  Diamond. 
B)  Circle. 
C)  Rectangle with left and right sides replaced with arcs curving outward. 
D)  Rounded rectangle.

Question 5

Which of the following is not an algorithm?

Accepted Answer

A)  A recipe. 
B)  Operating instructions. 
C)  Textbook index. 
D)  Shampoo instructions (lather, rinse, repeat). 
A)  A recipe. 
B)  Operating instructions. 
C)  Textbook index. 
D)  Shampoo instructions (lather, rinse, repeat).

Question 6

Which of the following statements is false?

Accepted Answer

A)  You should not call methods from constructors. 
B)  Nested if statements can be useful for validating values. 
C)  Logical operators can express nested if statements more concisely. 
D)  One problem with calling methods from constructors is that it can lead to duplicated validation code. 
A)  You should not call methods from constructors. 
B)  Nested if statements can be useful for validating values. 
C)  Logical operators can express nested if statements more concisely. 
D)  One problem with calling methods from constructors is that it can lead to duplicated validation code.

Question 7

Which of the following is true?

Accepted Answer

A)  Pseudocode is used to describe an algorithm. 
B)  Pseudocode is not an actual computer programming language. 
C)  Pseudocode is used to describe executable statements that will eventually be translated by the programmer into a program. 
D)  All of the above. 
A)  Pseudocode is used to describe an algorithm. 
B)  Pseudocode is not an actual computer programming language. 
C)  Pseudocode is used to describe executable statements that will eventually be translated by the programmer into a program. 
D)  All of the above.

Question 8

What is the size in bits of an int?

Accepted Answer

A)  8 
B)  16 
C)  32 
D)  64 
A)  8 
B)  16 
C)  32 
D)  64

Question 9

Which of the following is not a benefit of "goto-less programming"?

Accepted Answer

A)  Easier to debug and modify 
B)  Shorter 
C)  Clearer 
D)  More likely to be bug free 
A)  Easier to debug and modify 
B)  Shorter 
C)  Clearer 
D)  More likely to be bug free

Question 10

In an expression containing values of the types int and double, the ________ values are ________ to ________ values for use in the expression.

Accepted Answer

A)  int, promoted, double. 
B)  int, demoted, double. 
C)  double, promoted, int. 
D)  double, demoted, int. 
A)  int, promoted, double. 
B)  int, demoted, double. 
C)  double, promoted, int. 
D)  double, demoted, int.

Question 11

Which of the following is not a common name for one of the three phases that a program often can be split into using pseudocode?

Accepted Answer

A)  Termination phase 
B)  Initialization phase 
C)  Processing phase 
D)  Action phase 
A)  Termination phase 
B)  Initialization phase 
C)  Processing phase 
D)  Action phase

Question 12

What is output by the following Java code segment? int temp = 180; While (temp != 80) { If (temp > 90) { System.out.print("This porridge is too hot! "); // cool down Temp = temp - (temp > 150 ? 100 : 20); } Else { If (temp < 70) { System.out.print("This porridge is too cold! "); // warm up Temp = temp + (temp < 50 ? 30 : 20); } } } If (temp == 80) { System.out.println("This porridge is just right!"); }

Accepted Answer

A)  This porridge is too cold! This porridge is just right! 
B)  This porridge is too hot! This porridge is just right! 
C)  This porridge is just right! 
D)  None of the above. 
A)  This porridge is too cold! This porridge is just right! 
B)  This porridge is too hot! This porridge is just right! 
C)  This porridge is just right! 
D)  None of the above.

Question 13

Which of the following is not a primitive type?

Accepted Answer

A)  char 
B)  float 
C)  String 
D)  int 
A)  char 
B)  float 
C)  String 
D)  int

Question 14

Java is considered a strongly typed language because:

Accepted Answer

A)  The primitive types in Java are portable across all computer platforms that support Java. 
B)  Java requires all variables to have a type before they can be used in a program. 
C)  Instance variables of the primitive types are automatically assigned a default value. 
D)  All of the above. 
A)  The primitive types in Java are portable across all computer platforms that support Java. 
B)  Java requires all variables to have a type before they can be used in a program. 
C)  Instance variables of the primitive types are automatically assigned a default value. 
D)  All of the above.

Question 15

Which of the following is a double-selection control statement?

Accepted Answer

A)  do…while 
B)  for 
C)  if…else 
D)  if 
A)  do…while 
B)  for 
C)  if…else 
D)  if

Question 16

How many times is the body of the loop below executed? 
int counter = 1;
While (counter > 20) {
// body of loop
Counter = counter - 1;
}

Accepted Answer

A)  19. 
B)  20. 
C)  21. 
D)  0. 
A)  19. 
B)  20. 
C)  21. 
D)  0.

Question 17

Local variables must be ________.

Accepted Answer

A)  initialized when they're declared. 
B)  initialized before their values are used in an expression. 
C)  declared and initialized in two steps. 
D)  declared at the top of the method's body. 
A)  initialized when they're declared. 
B)  initialized before their values are used in an expression. 
C)  declared and initialized in two steps. 
D)  declared at the top of the method's body.

Question 18

The empty statement is denoted by what symbol?

Accepted Answer

A)  Semicolon ; 
B)  Parentheses () 
C)  Braces {} 
D)  Colon : 
A)  Semicolon ; 
B)  Parentheses () 
C)  Braces {} 
D)  Colon :

Question 19

Sentinel-controlled iteration is also known as:

Accepted Answer

A)  Definite iteration. 
B)  Indefinite iteration. 
C)  Multiple iteration. 
D)  Double iteration. 
A)  Definite iteration. 
B)  Indefinite iteration. 
C)  Multiple iteration. 
D)  Double iteration.

Exam 4: Control Statements: Assignment, and Operators

Which of the following statements about the conditional operator (?:) is false?

Which of the following statements is true?

Which of the following is not a Java keyword?

Which of the following is the shape of an action-state symbol?

Which of the following is not an algorithm?

Which of the following statements is false?

Which of the following is true?

What is the size in bits of an int?

Which of the following is not a benefit of "goto-less programming"?

In an expression containing values of the types int and double, the ________ values are ________ to ________ values for use in the expression.

Which of the following is not a common name for one of the three phases that a program often can be split into using pseudocode?

Which of the following is not a primitive type?

Java is considered a strongly typed language because:

Which of the following is a double-selection control statement?

How many times is the body of the loop below executed? int counter = 1; While (counter > 20) { // body of loop Counter = counter - 1; }

Local variables must be ________.

The empty statement is denoted by what symbol?

Sentinel-controlled iteration is also known as:

Introduction to Computers, the Internet and Java

Introduction to Java Applications; Inputoutput and Operators

Introduction to Classes, Objects, Methods and Strings

Control Statements: Logical Operators

Methods: a Deeper Look

Arrays and Arraylists

Classes and Objects: a Deeper Look

Object-Oriented Programming: Inheritance

Object-Oriented Programming: Polymorphism and Interfaces

Exception Handling: a Deeper Look

Javafx Graphical User Interfaces

Javafx Gui

Strings, Characters and Regular Expressions

Files, Inputoutput Streams, Nio and Xml Serialization

Generic Collections

Lambdas and Streams

Recursion

Searching, Sorting and Big O

Generic Classes and Methods: a Deeper Look

Custom Generic Data Structures

Concurrency

Accessing Databases With Jdbc

Swing Gui Components

Graphics and Java 2d

Networking

Java Persistence Api Jpa

Javaserver Faces Web Apps

Javaserver Faces Web Apps

Swing Gui Components

Filters

In an expression containing values of the types int and double, the values are to values for use in the expression.