Method parameters allow passing data into a method when it is invoked. They act as variables that are available for use within the method body.

Below is a code sample with methods. What is the purpose of the parameter$($s$)$ in printNumber$()$ and printFullName$()?$ How do the parameters affect what gets printed when these methods are invoked? Explain with specific statements that invoke these methods.

$//.................................$

public static void sayHello$()\{$

$\}$

System.out.println$("$Hello World!"$)$;

$\frac{1}{?}$ Method with one integer parameter

public static void printNumber $($int num$)\{$

System.out.println$("$The number is: $"+$ num$)$;

II Method with two string parameters

public static void printfullwame$($String firstName, String lastName$)\{$

$\}$

System, out.println$($firstName $+""++$ lastName$)$;