Question 1

Assume x is 0. What is the output of the following statement?

A) $ x $ is less than 0
B) $ x $ is greater than 0
C) $ \mathrm{x} $ equals 0
D) None

Accepted Answer

The given statement doesn't involve any variable, so the value of x is irrelevant in this case. The output of the statement is simply the string "11ecfc50_f1a0_9995_8e88_15ac5b91ce25_TB2835_11".

Question 2

What is the printout of the following switch statement? 
A) ab
B) a
C) aa
D) abc
E) abcd

Accepted Answer

B

Question 3

Which of the following is a constant, according to Java naming conventions?
A) read
B) MAX_VALUE
C) ReadInt
D) Test

Accepted Answer

According to Java naming conventions, constants should be written in all caps with underscores separating words (e.g. MAX_VALUE). Option A is a verb and not a constant, option C has a capital first letter which is not conventional for constants, and option D is not written in all caps.

Question 4

What is y after the following switch statement is executed? 
A) 1
B) 4
C) 3
D) 2
E) 0

Accepted Answer

Without the code for the switch statement, it is impossible to determine what the value of y will be. The provided string of characters is likely a unique identifier for the switch statement that has no bearing on its outcome.

Question 5

To declare a constant MAX_LENGTH inside a method with value 99.98, you write
A) final double MAX_LENGTH = 99.98;
B) double MAX_LENGTH = 99.98;
C) final MAX_LENGTH = 99.98;
D) final float MAX_LENGTH = 99.98;

Accepted Answer

The correct way to declare a constant inside a method is to use the keyword "final" to indicate that it cannot be changed and specify the data type of the constant. In this case, the value 99.98 is a double, so we need to use "final double" to declare it correctly. Option B is similar but does not declare the constant as final, which means it can be changed later in the code. Option C is missing the data type, and option D uses the wrong data type (float instead of double).

Question 6

Analyze the following code: 
A) Code 2 has syntax errors.
B) Code 1 has syntax errors.
C) Both Code 1 and Code 2 have syntax errors.
D) Both Code 1 and Code 2 are correct, but Code 2 is better.

Accepted Answer

The answer of Analyze the following code: 
A) Code 2...

Question 7

What is x after evaluating x = (2 > 3) ? 2 : 3;
A) 5
B) 2
C) 3
D) 4

Accepted Answer

The expression (2 > 3), is a condition and it evaluates to false. So when using the ternary operator, the second value after the '?' gets assigned to the variable x. Therefore, x = 3.

Question 8

What is y after the following switch statement? 
A) 2
B) 1
C) 0
D) -1

Accepted Answer

The answer of What is y after the following switch...

Question 9

Analyze the following code. 
A) The value of variable x is always printed.
B) The symbol x is always printed twice.
C) The symbol x is always printed.
D) Nothing is printed because x > 0 is false.

Accepted Answer

There is no conditional statement in the code, so x will always be printed once.

Quiz 1: Introduction to Computers, Programs, and Java

Assume x is 0. What is the output of the following statement? $Assume x is 0. What is the output of the following statement? A) x is less than 0 B) x is greater than 0 C) \mathrm{x} equals 0 D) None$

What is the printout of the following switch statement?

Which of the following is a constant, according to Java naming conventions?

What is y after the following switch statement is executed?

To declare a constant MAX_LENGTH inside a method with value 99.98, you write

Analyze the following code:

What is x after evaluating x = (2 > 3) ? 2 : 3;

What is y after the following switch statement?

Analyze the following code.