Question 1

Which of the following is not a control structure:

Accepted Answer

A) Sequence structure. 
B) Selection structure. 
C) Repetition structure. 
D) Declaration structure. 
A) Sequence structure. 
B) Selection structure. 
C) Repetition structure. 
D) Declaration structure. D

Question 2

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. C

Question 3

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. D

Question 4

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 5

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

Question 6

Which statement is false?

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.

Question 7

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 8

Which of the following operators associates from left to right?

Accepted Answer

A) = 
B) (?:) 
C) %= 
D) / 
A) = 
B) (?:) 
C) %= 
D) /

Question 9

What is output by the following Java code segment? int temp = 180; If ( temp > 90 ) { System.out.println( "This porridge is too hot." ); // cool down Temp = temp - ( temp > 150 ? 100 : 20 ); } // end if Else { If ( temp < 70 ) { System.out.println("This porridge is too cold."); // warm up Temp = temp + (temp < 50 ? 30 : 20); } // end if } // end else 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.This porridge is just right! 
C) This porridge is just right! 
D) None of the above. 
A) This porridge is too hot. 
B) This porridge is too cold.This porridge is just right! 
C) This porridge is just right! 
D) None of the above.

Question 10

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 ); } // end if Else { If ( temp < 70 ) { System.out.print( "This porridge is too cold! "); // warm up Temp = temp + (temp < 50 ? 30 : 20); } // end if } // end else } // end while 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 11

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.

Question 12

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 13

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 14

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 15

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 16

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 17

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 18

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 19

Which statement is false?

Accepted Answer

A) To ensure that the operands 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. 
A) To ensure that the operands 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.

Question 20

Which statement 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.

Exam 4: Control Statements: Part 1

Which of the following is not a control structure:

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

Which of the following is true?

Which of the following is not a primitive type?

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

Which statement is false?

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

Which of the following operators associates from left to right?

Sentinel-controlled repetition is also known as:

The empty statement is denoted by what symbol?

Which of the following is not an algorithm?

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

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

Local variables must be ________.

What is the size in bits of an int?

Counter-controlled repetition is also known as:

Which statement is false?

Which statement is true?

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

Atm Case Study,part 1: Object-Oriented Design With the Uml

Atm Case Study,part 2: Implementing an Object-Oriented Design

Gui Components: Part 1

Graphics and Java 2d

Strings

Files,streams and Object Serialization

Recursion

Searching, Sorting and Big O

Generic Collections

Generic Classes and Methods

Custom Generic Data Structures

Applets and Java Web Start

Multimedia: Applets and Applications

Gui, Part 2

Multithreading

Networking

Accessing Databases With Jdbc

Java Server Faces Web Applications

Ajax-Enabled Jsf Web Applications

Web Services

Filters