Given:
and the command:
java ConsoleTest
The user will input Duke and Java when the input is prompted.
What is the output?
Exam 1z0-819 All QuestionsBrowse all questions from this exam
Question 189
Correct Answer: D
The Console.readPassword() method returns a char array rather than a String. When the char array is printed using String.valueOf(password), it invokes the default toString() implementation of the array, which results in a string representation of the array's hashcode (e.g., [C@4f6ee6e4), rather than the actual characters. Therefore, the correct output will include the memory address of the char array, not the actual password input, making option D the correct choice.
Discussion
Felipe47Option: A
A. Tested.
OmnisumemOption: A
to check for yourself: import java.util.*; import java.lang.Object.*; import java.io.Console; public class q189{ public static void main (String args[]){ Console console = System.console(); var name = console.readLine("Input Name: "); var password = console.readPassword("Input Password: "); System.out.println ("Name is: " + name + ", Password is: " + String.valueOf(password)); }}
ASPushkinOption: A
String public static String valueOf(char[] data)) java.io.Console public char[] readPassword() Returns: A character array containing the password
d7bb0b2Option: A
A is correct eadpassword retrive a char[], but in print method uses toString method for this pass visible
d7bb0b2Option: D
that is correct because, readpassword retrive a char[], but in print method uses to string for this pass is visible