Question 1

Based on the code above, what is the value of x?

Accepted Answer

A)  1 
B)  3 
C)  5 
D)  12 
A)  1 
B)  3 
C)  5 
D)  12 C

Question 2

Suppose that x is an int variable. Which of the following expressions always evaluates to false?

Accepted Answer

A)  (x > 0) || (x  0) || (x == 0) 
C)  (x > 0) && ( x = 0) && (x == 0) 
A)  (x > 0) || (x  0) || (x == 0) 
C)  (x > 0) && ( x = 0) && (x == 0) C

Question 3

Based on the code above, what is the output if lastInitial = 'C'?

Accepted Answer

A)  section 1 
B)  section 2 
C)  section 3 
D)  section 5 
A)  section 1 
B)  section 2 
C)  section 3 
D)  section 5 C

Question 4

Based on the code above, what is the value of y if x = 9?

Accepted Answer

A)  2 
B)  4 
C)  6 
D)  8 
A)  2 
B)  4 
C)  6 
D)  8

Question 5

In Java, !, &&, and || are called logical operators.

Accepted Answer

A) True 
 B)False

Question 6

The operators = and == have the same order of precedence.

Accepted Answer

A) True 
 B)False

Question 7

What is the output of the following Java code? int x = 57; int y = 3; switch (x % 9) {case 0: case 1: y++; case 2: y = y - 2; break; case 3: y = y + 2; case 4: break; case 5: case 6: y = y + 3;} System.out.println(y);

Accepted Answer

A)  2 
B)  5 
C)  6 
D)  57 
A)  2 
B)  5 
C)  6 
D)  57

Question 8

A computer program will recognize both = and == as the equality operator.

Accepted Answer

A) True 
 B)False

Question 9

Suppose that you have the following statements. int score; String grade; if (score >= 65) grade = "pass"; else grade = "fail"; If score is equal to 75, the value of grade is pass.

Accepted Answer

A) True 
 B)False

Question 10

=! is a relational operator.

Accepted Answer

A) True 
 B)False

Question 11

Suppose P and Q are logical expressions. The logical expression P && Q is false if both P and Q are false.

Accepted Answer

A) True 
 B)False

Question 12

The expression 'A' <= 'B' evaluates to false while the expression 'A' < 'B' evaluates to true.

Accepted Answer

A) True 
 B)False

Question 13

The symbol >= is a logical operator.

Accepted Answer

A) True 
 B)False

Question 14

The conditional operator ?: takes ____ arguments.

Accepted Answer

A)  two 
B)  three 
C)  four 
D)  five 
A)  two 
B)  three 
C)  four 
D)  five

Question 15

In Java, || has a higher precedence than &&.

Accepted Answer

A) True 
 B)False

Question 16

Suppose that you have the following code. int num = 10; if (num > 10) System.out.println(num); else System.out.println(num + 5); The output of this code is 5.

Accepted Answer

A) True 
 B)False

Question 17

Which of the following will cause a syntax error, if you are trying to compare x to 5?

Accepted Answer

A)  if (x == 5) 
B)  if (x = 5) 
C)  if (x = 5) 
A)  if (x == 5) 
B)  if (x = 5) 
C)  if (x = 5)

Question 18

Which of the following will cause a syntax error?

Accepted Answer

A)  (10  10 && num < 40 
A)  (10  10 && num < 40

Question 19

What does >= mean?

Accepted Answer

A)  less than 
B)  greater than 
C)  less than or equal to 
D)  greater than or equal to 
A)  less than 
B)  greater than 
C)  less than or equal to 
D)  greater than or equal to

Question 20

What is the value of the expression above?

Accepted Answer

A)  true 
B)  false 
C)  x 
D)  It cannot be determined. 
A)  true 
B)  false 
C)  x 
D)  It cannot be determined.

Based on the code above, what is the value of x?

Suppose that x is an int variable. Which of the following expressions always evaluates to false?

Based on the code above, what is the output if lastInitial = 'C'?

Based on the code above, what is the value of y if x = 9?

In Java, !, &&, and || are called logical operators.

The operators = and == have the same order of precedence.

What is the output of the following Java code? int x = 57; int y = 3; switch (x % 9) {case 0: case 1: y++; case 2: y = y - 2; break; case 3: y = y + 2; case 4: break; case 5: case 6: y = y + 3;} System.out.println(y);

A computer program will recognize both = and == as the equality operator.

Suppose that you have the following statements. int score; String grade; if (score >= 65) grade = "pass"; else grade = "fail"; If score is equal to 75, the value of grade is pass.

=! is a relational operator.

Suppose P and Q are logical expressions. The logical expression P && Q is false if both P and Q are false.

The expression 'A' <= 'B' evaluates to false while the expression 'A' < 'B' evaluates to true.

The symbol >= is a logical operator.

The conditional operator ?: takes ____ arguments.

In Java, || has a higher precedence than &&.

Suppose that you have the following code. int num = 10; if (num > 10) System.out.println(num); else System.out.println(num + 5); The output of this code is 5.

Which of the following will cause a syntax error, if you are trying to compare x to 5?

Which of the following will cause a syntax error?

What does >= mean?

What is the value of the expression above?

An Overview of Computers and Programming Languages

Basic Elements of Java

Introduction to Objects and Inputoutput

Control Structures II: Repetition

Graphical User Interface Gui and Object-Oriented Design OOD

User-Defined Methods

User-Defined Classes and Adts

Arrays

Inheritance and Polymorphism

Handling Exceptions and Events

Advanced Guis and Graphics

Recursion

Searching and Sorting

Filters

Exam 4: Control Structures I: Selection

Based on the code above, what is the value of x?

Suppose that x is an int variable. Which of the following expressions always evaluates to false?

Based on the code above, what is the output if lastInitial = 'C'?

Based on the code above, what is the value of y if x = 9?

In Java, !, &&, and || are called logical operators.

The operators = and == have the same order of precedence.

What is the output of the following Java code? int x = 57; int y = 3; switch (x % 9) {case 0: case 1: y++; case 2: y = y - 2; break; case 3: y = y + 2; case 4: break; case 5: case 6: y = y + 3;} System.out.println(y);

A computer program will recognize both = and == as the equality operator.

Suppose that you have the following statements. int score; String grade; if (score >= 65) grade = "pass"; else grade = "fail"; If score is equal to 75, the value of grade is pass.

=! is a relational operator.

Suppose P and Q are logical expressions. The logical expression P && Q is false if both P and Q are false.

The expression 'A' <= 'B' evaluates to false while the expression 'A' < 'B' evaluates to true.

The symbol >= is a logical operator.

The conditional operator ?: takes ____ arguments.

In Java, || has a higher precedence than &&.

Suppose that you have the following code. int num = 10; if (num > 10) System.out.println(num); else System.out.println(num + 5); The output of this code is 5.

Which of the following will cause a syntax error, if you are trying to compare x to 5?

Which of the following will cause a syntax error?

What does >= mean?

What is the value of the expression above?

An Overview of Computers and Programming Languages

Basic Elements of Java

Introduction to Objects and Inputoutput

Control Structures II: Repetition

Graphical User Interface Gui and Object-Oriented Design OOD

User-Defined Methods

User-Defined Classes and Adts

Arrays

Inheritance and Polymorphism

Handling Exceptions and Events

Advanced Guis and Graphics

Recursion

Searching and Sorting

Filters