/sci/ - Science & Math

Sup /sci/ need help with a computer science lab dealing with variable scoping heres the code
lic class Scoping {
static double a = 123; /* ....................... location (1) */

public static void F( double a ) /* ....................... location (2) */
{
System.out.println("------ inside F( double a ) !!!!!!!!!!!!!!!!");

System.out.print("a at (2) = ");
// TODO: Write a System.out.println() statement that prints a on location (2)
System.out.println(a);
System.out.print("a at (1) = ");
// TODO: Write a System.out.println() statement that prints a on location (1)
System.out.println(a);
}

public static void F( String a ) /* ....................... location (3) */
{
System.out.println("------ inside F( String a ) ");

System.out.print("a at (3) = ");
// TODO: Write a System.out.println() statement that prints a on location (3)
F(a);
System.out.println(a);

System.out.print("a at (1) = ");
// TODO: Write a System.out.println() statement that prints a on location (1)
System.out.println(a);

How do i reference a in position one in different palces i nthe code?