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.E) B) and D)
F) B) and C)

Question 2

Which of the following is not a Java keyword?

Accepted Answer

A)   do
B)   next
C)   while
D)   forE) C) and D)
F) B) and D)

Question 3

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.E) A) and B)
F) All of the above

Question 4

Which of the following operators associates from left to right?

Accepted Answer

A)   (=) 
B)   (?:) 
C)   (%=) 
D)   (/) E) A) and B)
F) All of the above

Question 5

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

Accepted Answer

A)   do…while
B)   for
C)   if…else
D)   ifE) B) and C)
F) A) and B)

Question 6

Which of the following statements is false?

Accepted Answer

A)   To ensure that the operands in a mixed-type expression are of the same type, Java performs implicit conversion on selected operands.
B)   Cast operators are unary operators.
C)   Cast operators associate from right to left and are one level lower in precedence than the multiplicative operators.
D)   Cast operators are formed by placing parentheses around the name of a type.E) All of the above
F) A) and D)

Question 7

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.E) None of the above
F) A) and D)

Question 8

In Java graphics, coordinate units are measured in ________.

Accepted Answer

A)   pixlets.
B)   pixels.
C)   points.
D)   pikels.E) B) and C)
F) A) and B)

Question 9

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.E) C) and D)
F) None of the above

Question 10

What is the size in bits of an int?

Accepted Answer

A)   8
B)   16
C)   32
D)   64E) A) and B)
F) A) and D)

Question 11

What is the result value of c at the end of the following code segment?
Int c = 8;
C++;
++c;
C %= 5;

Accepted Answer

A)   0.
B)   1.
C)   3.
D)   None of the above.E) B) and D)
F) None of the above

Question 12

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 freeE) None of the above
F) A) and B)

Question 13

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.E) None of the above
F) A) and B)

Question 14

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.E) A) and D)
F) None of the above

Question 15

Counter-controlled repetition is also known as:

Accepted Answer

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

Question 16

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.E) B) and C)
F) None of the above

Question 17

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

Accepted Answer

A)   Diamond.
B)   Rectangle.
C)   Circle.
D)   Triangle.E) All of the above
F) A) and D)

Question 18

Keyword ________ indicates the inheritance relationship.

Accepted Answer

A)   extends
B)   inherits
C)   super
D)   parentE) None of the above
F) A) and B)

Question 19

Which of the following terms is not used to refer to a sentinel value that breaks out of a while loop?

Accepted Answer

A)   signal value.
B)   maximum value.
C)   dummy value.
D)   flag value.E) C) and D)
F) B) and C)

Exam 3: Control Statements

What does the expression x %= 10 do?

Correct Answer
verified

What is the size in bits of an int?

Correct Answer
verified

Which of the following terms is not used to refer to a sentinel value that breaks out of a while loop?

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

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

Correct Answer
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Which of the following is not a Java keyword?

Correct Answer
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What is the result value of c at the end of the following code segment? Int c = 8; C++; ++c; C %= 5;

Correct Answer
verified

Keyword ________ indicates the inheritance relationship.

Correct Answer
verified

Java is considered a strongly typed language because:

Correct Answer
verified

In Java graphics, coordinate units are measured in ________.

Correct Answer
verified

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

Correct Answer
verified

Which of the following operators associates from left to right?

Correct Answer
verified

Local variables must be ________.

Correct Answer
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Correct Answer
verified

Counter-controlled repetition is also known as:

Correct Answer
verified

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

Correct Answer
verified

Which of the following statements is false?

Correct Answer
verified

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

Correct Answer
verified

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

Correct Answer
verified

Exam 3: Control Statements

What does the expression x %= 10 do?

Correct AnswerverifiedShow Answer

What is the size in bits of an int?

Correct AnswerverifiedShow Answer

Which of the following terms is not used to refer to a sentinel value that breaks out of a while loop?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following is not a Java keyword?

Correct AnswerverifiedShow Answer

What is the result value of c at the end of the following code segment? Int c = 8; C++; ++c; C %= 5;

Correct AnswerverifiedShow Answer

Keyword ________ indicates the inheritance relationship.

Correct AnswerverifiedShow Answer

Java is considered a strongly typed language because:

Correct AnswerverifiedShow Answer

In Java graphics, coordinate units are measured in ________.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following operators associates from left to right?

Correct AnswerverifiedShow Answer

Local variables must be ________.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Counter-controlled repetition is also known as:

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following statements is false?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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