Question 1

The primitive data types only allow a(n) ________ to hold a single value.

Accepted Answer

A)  class 
B)  literal 
C)  object 
D)  variable

Question 2

What will be the value of z as a result of executing the following code?
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

Question 3

Which of the following is not a valid Java comment?

Accepted Answer

A)  /** Comment 1 */ 
B)  */ Comment 2 /* 
C)  // Comment 3 
D)  /* Comment 4 */

Question 4

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

Accepted Answer

A) True 
 B)False

Question 5

Variables are classified according to their

Accepted Answer

A)  names. 
B)  values. 
C)  location in memory. 
D)  data type.

Question 6

The simplest way you can use the System.out.printf method is

Accepted Answer

A)  with a format string, and one format specifier. 
B)  with only a format string, and no additional arguments. 
C)  with a format string, and one or more format specifiers. 
D)  with only one format specifier, and no format string.

Question 7

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

Accepted Answer

A) True 
 B)False

Question 8

What will be 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

Question 9

The System.out.printf method allows you to format output in a variety of ways.

Accepted Answer

A) True 
 B)False

Question 10

To print "Hello, world" on the monitor, use the following Java statement:

Accepted Answer

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

Question 11

If you wish 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

Question 12

A Java program must have at least one

Accepted Answer

A)  comment. 
B)  System.out.println(); statement. 
C)  class definition. 
D)  variable declaration.

Question 13

What is the result of the following expression? 
10 + 5 * 3 - 20

Accepted Answer

A)  -5 
B)  -50 
C)  5 
D)  25

Question 14

In the following Java statement what value is stored in the variable name? String name = "John Doe";

Accepted Answer

A)  "name" 
B)  the memory address where "John Doe" is located 
C)  the memory address where name is located 
D)  "John Doe"

Question 15

What would be displayed as a result of the following code?
 int x = 578; System.out.print("There are " +
X + 5 + "
" +
"hens in the hen house.");

Accepted Answer

A)  There are 583 hens in the hen house. 
B)  There are 5785 hens in the hen house., 
C)  There are x5
hens in the hen house.. 
D)  There are 5785 hens in the hen house...

Question 16

Which Scanner class method reads a String?

Accepted Answer

A)  nextLine 
B)  charAt 
C)  nextString 
D)  getLine

Question 17

What output will be displayed as a result of executing the following code?
Int x = 5, y = 20;
X += 32;
Y /= 4;
System.out.println("x = " + x + ", y = " + y);

Accepted Answer

A)  x = 160, y = 80 
B)  x = 32, y = 4 
C)  x = 37, y = 5 
D)  x = 9, y = 52

Question 18

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 19

This is a value that is written into the code of a program.

Accepted Answer

A)  Literal 
B)  Assignment statement 
C)  Operator 
D)  Variable

Question 20

This 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;

Exam 2: Java Fundamentals

The primitive data types only allow a(n) ________ to hold a single value.

What will be the value of z as a result of executing the following code? Int x = 5, y = 28; Float z; Z = (float) (y / x) ;

Which of the following is not a valid Java comment?

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

Variables are classified according to their

The simplest way you can use the System.out.printf method is

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

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

The System.out.printf method allows you to format output in a variety of ways.

To print "Hello, world" on the monitor, use the following Java statement:

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

A Java program must have at least one

What is the result of the following expression? 10 + 5 * 3 - 20

In the following Java statement what value is stored in the variable name? String name = "John Doe";

What would be displayed as a result of the following code? int x = 578; System.out.print("There are " + X + 5 + "\n" + "hens in the hen house.") ;

Which Scanner class method reads a String?

What output will be displayed as a result of executing the following code? Int x = 5, y = 20; X += 32; Y /= 4; System.out.println("x = " + x + ", y = " + y) ;

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

This is a value that is written into the code of a program.

This statement tells the compiler where to find the JOptionPane class and makes it available to your program.