Java OCA OCP Practice Question 888

Question

Which are the results of the following code? (Choose all that apply) 

String letters = "abcdef"; 
System.out.println(letters.length()); 
System.out.println(letters.charAt(3)); 
System.out.println(letters.charAt(6));
  • A. 5
  • B. 6
  • C. c
  • D. d
  • E. An exception is thrown.
  • F. The code does not compile. 


B, D, E.

Note

length() is a count of the number of characters in a String.

In this case, there are six characters.

charAt() returns the character at that index.

Remember that indexes are zero based, which means that index 3 corresponds to d and index 6 corresponds to 1 past the end of the array.

A StringIndexOutOfBoundsException is thrown for the last line.




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