01.8 Java Types & Ops 8

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Total points9/10

Duration: 20 Minutes

Email *

majorkiema.mk@gmail.com

Question 1 *

What will be the output of compiling and running the following ?

1/1

A. 1000000000000 || 1000000000000

B. -727379968 || 1000000

C. -727379968 || 1000000000000

Correct

D. It will not compile.

E. None of the above.

Required

Question 2

Given the following code fragment :

1/1

What is the result ?

A. Result : 10 Result : 30

B. Result : 10 Result : 25

C. Result : 235 Result : 215

Correct

D. Result : 215 Result : 215

E. Compilation fails.

Question 3

What will be the output of compiling and running the following code ?

1/1

A. Compilation fails.

Correct

B. ?

C. c

D. d

Question 4

Given :

0/1

A. It will not compile

Incorrect

B. ?

C. b

D. c

Correct answer

B. ?

Question 5

Which type of primitive can be assigned a new value within a conditional expression ?

1/1

A. boolean

Correct

B. int

C. short

D. char

E. byte

Question 6

What is the output of the following program ?

1/1

A. 3 2 4 2 10 3

B. 3 2 4 2 1,3

C. 3 2 4 2 10

D. 3 2 4 2 3

Correct

E. This program will not compile.

Question 7

Which operator is used to compare two values, = or == ?

1/1

A. =

B. ==

Correct

Feedback

The == operator is used for comparison, and = is used for assignment.

Question 8

What will be the output of the code given below ?

1/1

A. 4 5 6 6 7

Correct

B. 3 4 5 5 6

C. 3 4 4 5 6

D. 4 5 6 7 8

E. It will not compile.

F. None of the above.

Feedback

The code System.out.println(++i); evaluates to 6, because the prefix version of ++ evaluates to the incremented value. The next line, System.out.println(i++); evaluates to the current value (6), then increments by one. So "7" doesn't get printed until the next line.

Question 9

Given the following code :

1/1