how do i add these four methods that are shown below, to the main method of the program which is shown above

dont change anycode that is given

unsure how to add all four methods to program since all four were created as main methods

import java.util.x; 1 2 3 public class Sizes [ 4 5 6 7 8 9 10 public static Scanner kbd; public static void main(String[] args) kbdnew Scanner (System.in); 12 13 14 15 16 kbd.close()