Computer Studies

RAM is usually (Multiple Choice Question)

RAM is usually (Multiple Choice Question)

RAM is usually
A) a volatile type of memory, used only for temporary storage
B) an input/output device
C) secondary storage
D) a static type of memory, used for permanent storage

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Toothy

Application software refers to (Multiple Choice Question)

Application software refers to (Multiple Choice Question)

Application software refers to
A) the operating system
B) the programs that make the computer useful to the user
C) key words
D) pseudocode

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Toothy

Key words are (Multiple Choice Question)

Key words are (Multiple Choice Question)

Key words are
A) words or names defined by the programmer
B) symbols or words that perform operations on one or more operands
C) words that have a special meaning in the programming language
D) the data names in your program

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Toothy

Which of the following is not part of the programming process?

Which of the following is not part of the programming process?

Which of the following is not part of the programming process?
A) testing
B) debugging/correcting errors
C) design/model
D) All the above are parts of the programming process.

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Toothy

Encapsulation refers to the combining of data and code into a single object.

Encapsulation refers to the combining of data and code into a single object.

Encapsulation refers to the combining of data and code into a single object.
A) True
B) False

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Toothy

The two primary methods of programming in use today are

The two primary methods of programming in use today are

The two primary methods of programming in use today are
A) object oriented
B) procedural
C) Both A and B
D) method and procedures

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Toothy

Whereas ________ is centered on creating procedures, ________ is centered on creating objects.

Whereas ________ is centered on creating procedures, ________ is centered on creating objects.

Whereas ________ is centered on creating procedures, ________ is centered on creating objects.
A) routine programming; method programming
B) object-oriented programming; procedural programming
C) procedural programming; object-oriented

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Toothy

All Java lines of code end with semicolons.

All Java lines of code end with semicolons.

All Java lines of code end with semicolons.
A) True
B) False

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Toothy

This is normally considered the standard output and standard input devices, and usually refer to the ...

This is normally considered the standard output and standard input devices, and usually refer to the ...

This is normally considered the standard output and standard input devices, and usually refer to the monitor and keyboard.
A) secondary storage devices
B) CRT
C) CPU
D) console

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Toothy

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

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

Which of the following is not a rule that must be followed when naming identifiers?
A) After the first character, you may use the letters a-z, A-Z, the underscore, a dollar sign, or digits 0-9.
B) The first character must be one of the lett

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Toothy

Character literals are enclosed in ________; string literals are enclosed in ________.

Character literals are enclosed in ________; string literals are enclosed in ________.

Character literals are enclosed in ________; string literals are enclosed in ________.
A) single quotes; double quotes
B) double quotes; double quotes
C) single quotes; single quotes
D) double quotes; single quotes

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Toothy

What is the result of the following statement?25/4 + 4 * 10 % 3

What is the result of the following statement?25/4 + 4 * 10 % 3

What is the result of the following statement?

25/4 + 4 * 10 % 3

A) 7
B) 5.25
C) 19
D) 3

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Toothy

Which of the following will correctly convert the data type, if x is a float and y is a double?

Which of the following will correctly convert the data type, if x is a float and y is a double?

Which of the following will correctly convert the data type, if x is a float and y is a double?
A) x = y;
B) x = <float>y;
C) x = float y;
D) x = (float)y;

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Toothy

What will be displayed as a result of executing the following code?int x = 5, y = 20;x += 32;y /= ...

What will be displayed as a result of executing the following code?int x = 5, y = 20;x += 32;y /= ...

What 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);

A) x = 9, y = 52
B) x = 37, y = 5

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Toothy

Named constants are initialized with a value, that value cannot be changed during the execution of ...

Named constants are initialized with a value, that value cannot be changed during the execution of ...

Named constants are initialized with a value, that value cannot be changed during the execution of the program.
A) True
B) False

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Toothy

What will be the value of z as a result of executing the following code?int x = 5, y = 28;float z;z ...

What will be the value of z as a result of executing the following code?int x = 5, y = 28;float z;z ...

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);

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

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Toothy

What will be the displayed when the following code is executed?final int x = 22, y = 4;y += ...

What will be the displayed when the following code is executed?final int x = 22, y = 4;y += ...

What will be the displayed when the following code is executed?

final int x = 22, y = 4;
y += x;
System.out.println("x = " + x + ", y = " + y);

A) x = 22, y = 26
B) x = 22, y = 4
C) x = 22

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Toothy

What will be displayed as a result of executing the following code?int x = 6;String msg = "I ...

What will be displayed as a result of executing the following code?int x = 6;String msg = "I ...

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

int x = 6;
String msg = "I am enjoying this class.";
String msg1 = msg.toUpperCase();
String msg2 = msg.toLowerCase();
char ltr = msg.charAt(

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Toothy

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

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

A variable's scope is the part of the program that has access to the variable.
A) True
B) False

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Toothy

Which of the following is not a valid comment statement?

Which of the following is not a valid comment statement?

Which of the following is not a valid comment statement?
A) /** comment 4
B) /* comment 2 */
C) */ comment 3 /*
D) // comment 1

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Toothy

Which Scanner class method reads an int?

Which Scanner class method reads an int?

Which Scanner class method reads an int?
A) getInt()
B) nextInt()
C) read Int()
D) readInt()

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Toothy

When saving a Java source file, save it with an extension of

When saving a Java source file, save it with an extension of

When saving a Java source file, save it with an extension of
A) .javac
B) .class
C) .java
D) .src

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Toothy

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

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

To print "Hello, world" on the monitor, use the following Java statement
A) System.out.println("Hello, world");
B) System.out.println{"Hello, world"}
C) SystemOutPrintln("Hello, world");
D)

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Toothy

What would be displayed as a result of the following code?int x = 578;System.out.print("There ...

What would be displayed as a result of the following code?int x = 578;System.out.print("There ...

What would be displayed as a result of the following code?

int x = 578;
System.out.print("There are " +
                 x + 5 + "\n" +
       

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Toothy

Identifiers and class names are examples of variables.

Identifiers and class names are examples of variables.

Identifiers and class names are examples of variables.
A) True
B) False

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Toothy

Variables are classified according to their ________.

Variables are classified according to their ________.

Variables are classified according to their ________.
A) names
B) value
C) data type
D) location in the program

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Toothy

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

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

The primitive data types only allow a(n) ________ to hold a single value.
A) variable
B) object
C) literal
D) class

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Toothy

If x has been declared an int, which of the following is invalid?

If x has been declared an int, which of the following is invalid?

If x has been declared an int, which of the following is invalid?
A) x = 1,000;
B) x = 0;
C) x = -58932;
D) x = 592;

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Toothy

Given the declaration double r;, which of the following statements is invalid?

Given the declaration double r;, which of the following statements is invalid?

Given the declaration double r;, which of the following statements is invalid?
A) r = 9.4632E15;
B) r = 326.75;
C) r = 9.4632e15;
D) r = 2.9X106;

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Toothy

Variables of the boolean data type are useful for

Variables of the boolean data type are useful for

Variables of the boolean data type are useful for
A) working with small integers
B) evaluating scientific notation
C) working with very large integers
D) evaluating true/false conditions

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Toothy

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

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

Both character literals and string literals can be assigned to a char variable.
A) True
B) False

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Toothy

What is the result of the following expression?25 - 7 * 3 + 12/3

What is the result of the following expression?25 - 7 * 3 + 12/3

What is the result of the following expression?

25 - 7 * 3 + 12/3

A) 8
B) 6
C) 12
D) 10

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Toothy

What will be displayed after the following statements have been executed?int x = 15, y = 20, z = ...

What will be displayed after the following statements have been executed?int x = 15, y = 20, z = ...

What will be displayed after the following statements have been executed?   

int x = 15, y = 20, z = 32;
x += 12;
y /= 6;
z -= 14;
System.out.println("x = " + x +
           

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Toothy

What will be the value of z after the following statements have been executed?int x = 4, y = ...

What will be the value of z after the following statements have been executed?int x = 4, y = ...

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);

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

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Toothy

What will be displayed after the following statements have been executed?final double x;x = ...

What will be displayed after the following statements have been executed?final double x;x = ...

What will be displayed after the following statements have been executed?

final double x;
x = 54.3;
System.out.println("x = " + x );

A) x = 54.3
B) x = 108.6
C) x
D) Nothing, this is an error.

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Toothy

What will be displayed as a result of executing the following code?int x = 8;String msg = "I ...

What will be displayed as a result of executing the following code?int x = 8;String msg = "I ...

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

int x = 8;
String msg = "I am enjoying java.";
String msg1 = msg.toUpperCase();
String msg2 = msg.toLowerCase();
char ltr = msg.charAt(x);

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Toothy

If the compiler encounters a statement that uses a variable before the variable is declared, an ...

If the compiler encounters a statement that uses a variable before the variable is declared, an ...

If the compiler encounters a statement that uses a variable before the variable is declared, an error will result.
A) True
B) False

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Toothy

In the cookie cutter method: Think of the ________ as a cookie cutter and ________ as the cookies.

In the cookie cutter method: Think of the ________ as a cookie cutter and ________ as the cookies.

In the cookie cutter method: Think of the ________ as a cookie cutter and ________ as the cookies.
A) class; fields
B) field; methods
C) class; objects
D) object; classes

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Toothy

An access specifier indicates how the class may be accessed.

An access specifier indicates how the class may be accessed.

An access specifier indicates how the class may be accessed.
A) True
B) False

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Toothy

Data hiding, which means that critical data stored inside the object is protected from code outside ...

Data hiding, which means that critical data stored inside the object is protected from code outside ...

Data hiding, which means that critical data stored inside the object is protected from code outside the object is accomplished in Java by
A) using the private access specifier on the class methods
B) using the private access specifier on th

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Toothy