mcq

Question 1

What is the default value of a variable declared boolean?
A TRUE

B FALSE

C null

D 1

Answer 1

b

Question 2

An expression include byte, int, and numbers is moved up to which of these?
A int

B long

C byte

D float

Answer 2

a

Question 3

In Java int, short, byte and long all of these are _________
A unsigned

B signed

C Both of the above

D None of these

Answer 3

b

Question 4

Which data type(s) can store 64 bit Value?
A boolean

B int

C long

D float

Answer 4

c

Question 5

Scope of Byte Data Type is ______.
A -128 to 128

B -127 to 127

C -127 to 128

D -128 to 127

Answer 5

d

Question 6

. float is represented with ______ and double is represented with ______.
A 32 and 64

B 64 and 64

C 32 and 32

D 64 and 32

Answer 6

a

Question 7

Which automatic type conversion is feasible?
A long to int

B int to long

C byte to int

D short to int

Answer 7

b,c,d

Question 8

whiche of these can not be used for a variable name in java

Answer 8

keyword

Question 9

litereal can be of these
boolean
integers
float

Answer 9

all of the mentioned

Question 10

which one is valid decleration

Answer 10

boolean b3 =false;

Question 11

in java the word true is

Answer 11

boolean literial

Question 12

Multiple variables with different data types can be declared in a single statement.
True

False

Answer 12

false

Question 13

3. The equal sign operator is used to assign a new value to a variable.

True

I
False

Answer 13

true

Question 14

. Values represented by the double data type are referred to as floating point.

True

False

Answer 14

true

Question 15

5. If a value could possibly have a decimal portion, int is the best data type choice.

True

False

HIDE ANSWER

Answer 15

false

Question 16

An abstract data type is also called a primitive data type.

True

False

HIDE ANSWER

Answer 16

false

Question 17

Modulus division truncates the decimal portion of the quotient to result in an integer.

True

False

Answer 17

false

Question 18

Real division returns the entire quotient, including the decimal portion.
Correct True
True

Incorrect False
False

HIDE ANSWER

English
Real division returns the entire quotient, including the decimal portion.

Answer 18

true

Question 19

10. A run-time error halts program execution at the statement that cannot be executed.

True

False

Answer 19

true

Question 20

Which is a valid identifier?
$12

void

55

diameter

Answer 20

diameter

Question 21

. How many values can a variable store at one time?

1

2

5

10

Answer 21

1

Question 22

Which data type declares a variable that stores a positive or negative whole number?
int

double

char

boolean

Answer 22

int

Question 23

Which data type is most appropriate for an employee’s salary?
int

double

char

boolean

Answer 23

double