Question 1

Analyze the following code.

Accepted Answer

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. C

Question 2

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

Accepted Answer

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

Question 3

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

Accepted Answer

A)  5 
B)  2 
C)  3 
D)  4 C

Question 4

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

Accepted Answer

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;

Question 5

What is y after the following switch statement?

Accepted Answer

A)  2 
B)  1 
C)  0 
D)  -1

Question 6

What is the printout of the following switch statement?

Accepted Answer

A)  ab 
B)  a 
C)  aa 
D)  abc 
E)  abcd

Question 7

What is y after the following switch statement is executed?

Accepted Answer

A)  1 
B)  4 
C)  3 
D)  2 
E)  0

Question 8

Analyze the following code:

Accepted Answer

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.

Question 9

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

Accepted Answer

A)  read 
B)  MAX_VALUE 
C)  ReadInt 
D)  Test

Exam 1: Introduction to Computers, Programs, and Java