Java OCA OCP Practice Question 928

Question

How many lines does the following code output? 

String[] days = new String[] { "Sunday", "Monday", "Tuesday", 
           "Wednesday", "Thursday", "Friday", "Saturday" }; 
for (int i = 1; i <= days.length; i++) 
           System.out.println(days[i]);
  • A. Six
  • B. Seven
  • C. The code does not compile.
  • D. The code compiles but throws an exception at runtime. 


D.

Note

In Java, arrays are indexed starting with 0.

While it is unusual for the loop to start with 1, this does not cause an error.

What does cause an error is the loop ending at data.length, because the <= operator is used instead of the < operator.

The last loop index is 6, not 7.

On the last iteration of the loop, the code throws an ArrayIndexOutOfBoundsException.

Option D is correct.




PreviousNext

Related