If the user types the password x1y2z3 when prompted, what is the result? [ Please select 1 option: ]
The given code fragment uses the Console class to prompt the user for a password and then prints the accepted password.
The Console class provides methods to access the
character-based console device associated with the current
Java virtual machine.
By using the Console class you can
- access the console device and
- accept input or display output on the console.
If the
virtual machine has a console, then it is represented by a unique instance of this class which can be obtained by invoking the
System.console()
method.
If no console device is available, then an invocation of that method will return null. In order to access an instance of the Console class you should use the following syntax
Console c = System.console();
The given example uses the following syntax instead :
Console c = new Console();
which is not a
valid syntax to access an instance of the Console class. Therefore, it will cause a compile time error as described in option E. Because the given code generates a compile time error, it will not produce any output or exception.