For line 1, without putting the asterisk in single or double quote marks, the compiler will assume that the asterisk is the multiplication sign. This causes the error since no numbers are being multiplied. If an argument (in this case the asterisk) is passed into the print function, given that it is not a method, string or character, in most cases, the compiler assumes it is an arithmetic operation
For line 3, to print an empty space, you can use System.out.println(' ') or System.out.println(" "). Writing line 3 the way you did gives an error because nothing was passed in the print argument, so the compiler will not be able to identify what you are trying to print.
The term of project management imposed deadline<em> refers mainly to the calendar-based dividing line used to determine a fixed time or date on which the project management team has projected and/or developed that the particular schedule of work and/or schedule of work events.</em>
