Question 1

Which of the following statements is invalid?

Accepted Answer

A)   double r = 9.4632E15; 
B)  double r = 9.4632e15; 
C)  double r = 2.9X106; 
D)  double r = 326.75; 
A)   double r = 9.4632E15; 
B)  double r = 9.4632e15; 
C)  double r = 2.9X106; 
D)  double r = 326.75;

Question 2

Which of the following statements correctly creates a  Scanner  object for keyboard input?

Accepted Answer

A)   Scanner kbd = new Scanner(System.keyboard); 
B)  Scanner keyboard = new Scanner(System.in); 
C)  Scanner keyboard(System.in); 
D)  Keyboard scanner = new Keyboard(System.in); 
A)   Scanner kbd = new Scanner(System.keyboard); 
B)  Scanner keyboard = new Scanner(System.in); 
C)  Scanner keyboard(System.in); 
D)  Keyboard scanner = new Keyboard(System.in);

Question 3

Both character and string literals can be assigned to a char variable.

Accepted Answer

A) True 
 B)False

Question 4

The boolean data type may contain which of the following range of values?

Accepted Answer

A)   -128 to + 127 
B)  true or false 
C)  -2,147,483,648 to +2,147,483,647 
D)  -32,768 to +32,767 
A)   -128 to + 127 
B)  true or false 
C)  -2,147,483,648 to +2,147,483,647 
D)  -32,768 to +32,767

Question 5

If you want to use the  System.out.printf  method to print a string argument , use the __________ format specifier.

Accepted Answer

A)  % d 
B)  %b 
C)  %f 
D)  % s 
A)  % d 
B)  %b 
C)  %f 
D)  % s

Question 6

What is the value of z after the following code is executed? 
 int x = 5, y = 28;
Float z;
Z = (float) (y / x);

Accepted Answer

A)  5.6 
B)  3.0 
C)  5.0 
D)  5.60 
A)  5.6 
B)  3.0 
C)  5.0 
D)  5.60

Question 7

A message dialog is a quick and simple way to ask the user to enter data.

Accepted Answer

A) True 
 B)False

Question 8

Variables of the  boolean  data type are useful for

Accepted Answer

A)  evaluating conditions that are either true or false 
B)  working with small integers 
C)  working with very large integers 
D)  evaluating scientific notation 
A)  evaluating conditions that are either true or false 
B)  working with small integers 
C)  working with very large integers 
D)  evaluating scientific notation

Question 9

Which of the following is not a rule that must be followed when naming identifiers?

Accepted Answer

A)  After the first character, you may use the letters a-z, A-Z, an underscore, a dollar sign, or the digits 0-9. 
B)  Identifiers can contain spaces. 
C)  Uppercase and lowercase characters are distinct. 
D)  The first character must be one of the letters a-z, A-Z, an underscore, or a dollar sign. 
A)  After the first character, you may use the letters a-z, A-Z, an underscore, a dollar sign, or the digits 0-9. 
B)  Identifiers can contain spaces. 
C)  Uppercase and lowercase characters are distinct. 
D)  The first character must be one of the letters a-z, A-Z, an underscore, or a dollar sign.

Question 10

What would be displayed as a result of executing the following code? 
 int x = 15, y = 20, z = 32;
X += 12;
Y /= 6;
Z -= 14;
System.out.println("x = " + x +
", y = " + y +
", z = " + z);

Accepted Answer

A)  x = 27, y = 3.333, z = 18 
B)  x = 27, y = 2, z = 18 
C)  x = 37, y = -14, z = 4 
D)  x = 27, y = 3, z = 18 
A)  x = 27, y = 3.333, z = 18 
B)  x = 27, y = 2, z = 18 
C)  x = 37, y = -14, z = 4 
D)  x = 27, y = 3, z = 18

Question 11

Which statement tells the compiler where to find the JOptionPane class and makes it available to your program?

Accepted Answer

A)   import javax.swing.JOptionPane; 
B)  import Java.Swing.JOptionPane; 
C)  import JOptionPane; 
D)  import javax.JOptionPane; 
A)   import javax.swing.JOptionPane; 
B)  import Java.Swing.JOptionPane; 
C)  import JOptionPane; 
D)  import javax.JOptionPane;

Question 12

A(n) __________ is a dialog box that prompts the user for input.

Accepted Answer

A)  input box 
B)  user prompt 
C)  adaptive dialog 
D)  input dialog 
A)  input box 
B)  user prompt 
C)  adaptive dialog 
D)  input dialog

Question 13

If you use a  flag  in a format specifier, you must write the flag before the field width and the precision.

Accepted Answer

A) True 
 B)False

Question 14

Programming style includes techniques for consistently putting spaces and indentation in a program to help create visual cues.

Accepted Answer

A) True 
 B)False

Question 15

Variables are classified according to their

Accepted Answer

A)  names 
B)  values 
C)  locations 
D)  data types 
A)  names 
B)  values 
C)  locations 
D)  data types

Question 16

What is the value of z after the following statements have been executed? 
 int x = 4, y = 33;
Double z;
Z = (double) (y / x);

Accepted Answer

A)  8.25 
B)  4 
C)  0 
D)  8.0 
A)  8.25 
B)  4 
C)  0 
D)  8.0

Question 17

To print "Hello, world" on the monitor, which of the following Java statements should be used?

Accepted Answer

A)  System.out.println("Hello, world"); 
B)  System Print = "Hello, world"; 
C)  SystemOutPrintln('Hello, world'); 
D)  system.out.println(Hello, world); 
A)  System.out.println("Hello, world"); 
B)  System Print = "Hello, world"; 
C)  SystemOutPrintln('Hello, world'); 
D)  system.out.println(Hello, world);

Question 18

Which of the following is a named storage location in the computer's memory?

Accepted Answer

A)  a literal 
B)  an operator 
C)  a constant 
D)  a variable 
A)  a literal 
B)  an operator 
C)  a constant 
D)  a variable

Question 19

Which of the following is a value that is written into the code of a program?

Accepted Answer

A)  a literal 
B)  an assignment statement 
C)  an operator 
D)  a variable 
A)  a literal 
B)  an assignment statement 
C)  an operator 
D)  a variable

Question 20

A variable's scope is the part of the program that has access to that variable.

Accepted Answer

A) True 
 B)False

Which of the following statements is invalid?

Which of the following statements correctly creates a Scanner object for keyboard input?

Both character and string literals can be assigned to a char variable.

The boolean data type may contain which of the following range of values?

If you want to use the System.out.printf method to print a string argument , use the __________ format specifier.

What is the value of z after the following code is executed? int x = 5, y = 28; Float z; Z = (float) (y / x);

A message dialog is a quick and simple way to ask the user to enter data.

Variables of the boolean data type are useful for

Which of the following is not a rule that must be followed when naming identifiers?

What would be displayed as a result of executing the following code? int x = 15, y = 20, z = 32; X += 12; Y /= 6; Z -= 14; System.out.println("x = " + x + ", y = " + y + ", z = " + z);

Which statement tells the compiler where to find the JOptionPane class and makes it available to your program?

A(n) __________ is a dialog box that prompts the user for input.

If you use a flag in a format specifier, you must write the flag before the field width and the precision.

Programming style includes techniques for consistently putting spaces and indentation in a program to help create visual cues.

Variables are classified according to their

What is the value of z after the following statements have been executed? int x = 4, y = 33; Double z; Z = (double) (y / x);

To print "Hello, world" on the monitor, which of the following Java statements should be used?

Which of the following is a named storage location in the computer's memory?

Which of the following is a value that is written into the code of a program?

A variable's scope is the part of the program that has access to that variable.

Introduction to Computers and Java

A First Look at Classes and Objects

Decision Structures

Loops and Files

A Second Look at Classes and Objects

Arrays and the Arraylist Class

Text Processing and Wrapper Classes

Inheritance

Exceptions and Advanced File Io

Java-Fx: Gui Programming and Basic Controls

Java-Fx: Advanced Controls

Java-Fx: Graphics, Effects, and Media

Recursion

Databases

Filters

Exam 2: Java Fundamentals

Which of the following statements is invalid?

Which of the following statements correctly creates a Scanner object for keyboard input?

Both character and string literals can be assigned to a char variable.

The boolean data type may contain which of the following range of values?

If you want to use the System.out.printf method to print a string argument , use the __________ format specifier.

What is the value of z after the following code is executed? int x = 5, y = 28; Float z; Z = (float) (y / x);

A message dialog is a quick and simple way to ask the user to enter data.

Variables of the boolean data type are useful for

Which of the following is not a rule that must be followed when naming identifiers?

What would be displayed as a result of executing the following code? int x = 15, y = 20, z = 32; X += 12; Y /= 6; Z -= 14; System.out.println("x = " + x + ", y = " + y + ", z = " + z);

Which statement tells the compiler where to find the JOptionPane class and makes it available to your program?

A(n) __________ is a dialog box that prompts the user for input.

If you use a flag in a format specifier, you must write the flag before the field width and the precision.

Programming style includes techniques for consistently putting spaces and indentation in a program to help create visual cues.

Variables are classified according to their

What is the value of z after the following statements have been executed? int x = 4, y = 33; Double z; Z = (double) (y / x);

To print "Hello, world" on the monitor, which of the following Java statements should be used?

Which of the following is a named storage location in the computer's memory?

Which of the following is a value that is written into the code of a program?

A variable's scope is the part of the program that has access to that variable.

Introduction to Computers and Java

A First Look at Classes and Objects

Decision Structures

Loops and Files

A Second Look at Classes and Objects

Arrays and the Arraylist Class

Text Processing and Wrapper Classes

Inheritance

Exceptions and Advanced File Io

Java-Fx: Gui Programming and Basic Controls

Java-Fx: Advanced Controls

Java-Fx: Graphics, Effects, and Media

Recursion

Databases

Filters