Question 1

Which of the following segments is a proper way to call the method readData four times?

Accepted Answer

A) double k = 0.0;
While (k != 4)
{
ReadData();
K = k + 1;
} 
B) int i = 0;
While (i <= 4)
{
ReadData();
I = i + 1;
} 
C) int i = 0;
While (i < 4)
{
ReadData();
} 
D) int i = 0;
While (i < 4)
{
ReadData();
I = i + 1;
} 
A) double k = 0.0;
While (k != 4)
{
ReadData();
K = k + 1;
} 
B) int i = 0;
While (i <= 4)
{
ReadData();
I = i + 1;
} 
C) int i = 0;
While (i < 4)
{
ReadData();
} 
D) int i = 0;
While (i < 4)
{
ReadData();
I = i + 1;
} D

Question 2

Which of the following statements is true?

Accepted Answer

A) Both syntax errors and logic errors are caught by the compiler. 
B) Both syntax errors and logic errors have effects at execution time. 
C) Syntax errors are caught by the compiler.Logic errors have effects at execution time. 
D) Logic errors are caught by the compiler.Syntax errors have effects at execution time. 
A) Both syntax errors and logic errors are caught by the compiler. 
B) Both syntax errors and logic errors have effects at execution time. 
C) Syntax errors are caught by the compiler.Logic errors have effects at execution time. 
D) Logic errors are caught by the compiler.Syntax errors have effects at execution time. C

Question 3

Sentinel-controlled repetition is also known as:

Accepted Answer

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

Question 4

Which of the following is not an error (either a syntax error or a logic error)?

Accepted Answer

A) Neglecting to include an action in the body of a while statement that will eventually cause the condition to become false. 
B) Spelling a keyword (such as while or if)with a capitalized first letter. 
C) Using a condition for a while statement that is initially false. 
D) An infinite loop. 
A) Neglecting to include an action in the body of a while statement that will eventually cause the condition to become false. 
B) Spelling a keyword (such as while or if)with a capitalized first letter. 
C) Using a condition for a while statement that is initially false. 
D) An infinite loop.

Question 5

What does the expression x %= 10 do?

Accepted Answer

A) Adds 10 to the value of x,and stores the result in x. 
B) Divides x by 10 and stores the remainder in x. 
C) Divides x by 10 and stores the integer result in x. 
D) None of the above. 
A) Adds 10 to the value of x,and stores the result in x. 
B) Divides x by 10 and stores the remainder in x. 
C) Divides x by 10 and stores the integer result in x. 
D) None of the above.

Question 6

Which of the following would not be used to clarify a dangling-else?

Accepted Answer

A) Indentation. 
B) Parentheses (). 
C) Braces {}. 
D) Comment //. 
A) Indentation. 
B) Parentheses (). 
C) Braces {}. 
D) Comment //.

Question 7

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 8

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

Accepted Answer

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

Question 9

In Java graphics,coordinate units are measured in ________.

Accepted Answer

A) pixlets. 
B) pixels. 
C) points. 
D) pikels. 
A) pixlets. 
B) pixels. 
C) points. 
D) pikels.

Question 10

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 11

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 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

Counter-controlled repetition is also known as:

Accepted Answer

A) Definite repetition 
B) Indefinite repetition 
C) Multiple-repetition structure 
D) Double-repetition structure 
A) Definite repetition 
B) Indefinite repetition 
C) Multiple-repetition structure 
D) Double-repetition structure

Question 14

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 15

Which statement is false?

Accepted Answer

A) Unless directed otherwise,the computer executes Java statements one after the other in the order in which they're written. 
B) Activity diagrams normally show the Java code that implements the activity. 
C) Like pseudocode,activity diagrams help programmers develop and represent algorithms. 
D) The arrows in the activity diagram represent transitions,which indicate the order in which the actions represented by the action states occur. 
A) Unless directed otherwise,the computer executes Java statements one after the other in the order in which they're written. 
B) Activity diagrams normally show the Java code that implements the activity. 
C) Like pseudocode,activity diagrams help programmers develop and represent algorithms. 
D) The arrows in the activity diagram represent transitions,which indicate the order in which the actions represented by the action states occur.

Question 16

A decision symbol in an activity diagram takes the shape of a ________.

Accepted Answer

A) Diamond. 
B) Rectangle. 
C) Circle. 
D) Triangle. 
A) Diamond. 
B) Rectangle. 
C) Circle. 
D) Triangle.

Question 17

In an activity diagram,the merge symbol has the same shape as what other symbol?

Accepted Answer

A) Decision symbol. 
B) Action symbol. 
C) Transition arrows. 
D) Initial state. 
A) Decision symbol. 
B) Action symbol. 
C) Transition arrows. 
D) Initial state.

Question 18

What is output by the following Java code segment?
Int temp = 200;
If (temp > 90)
System.out.println("This porridge is too hot.");
If (temp < 70)
System.out.println("This porridge is too cold.");
If (temp == 80)
System.out.println("This porridge is just right!");

Accepted Answer

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

Question 19

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 20

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

Exam 4: Control Statements: Part 1

Which of the following segments is a proper way to call the method readData four times?

Which of the following statements is true?

Sentinel-controlled repetition is also known as:

Which of the following is not an error (either a syntax error or a logic error)?

What does the expression x %= 10 do?

Which of the following would not be used to clarify a dangling-else?

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?

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

In Java graphics,coordinate units are measured in ________.

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

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

Counter-controlled repetition is also known as:

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

Which statement is false?

A decision symbol in an activity diagram takes the shape of a ________.

In an activity diagram,the merge symbol has the same shape as what other symbol?

What is output by the following Java code segment? Int temp = 200; If (temp > 90) System.out.println("This porridge is too hot."); If (temp < 70) System.out.println("This porridge is too cold."); If (temp == 80) System.out.println("This porridge is just right!");

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

Which of the following is not a Java keyword?

Introduction to Computers and Java

Introduction to Java Applications

Introduction to Classes and Objects

Control Statements: Part 2

Methods: a Deeper Look

Arrays and Arraylists

Classes and Objects: a Deeper Look

Object Oriented Programming: Inheritance

Object-Oriented Programming: Polymorphism

Exception Handling

Gui Components: Part 1

Graphics and Java 2D

Strings

Files,streams and Object Serialization

Generic Collections

Lambdas

Recursion

Searching, Sorting and Big O

Generic Classes and Methods

Custom Generic Data Structures

Concurrency

Accessing Databases With Jdbc

JavaFX

Filters

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