Syntax error: package is unexpected. HELP!.........

ive got this saving script but every time i press Ctrl + Enter to load the swf

i get an error saying "Scene 1, Layer 'Actions', Frame 1, Line 4 1083: Syntax error: package is unexpected."

package
{
import flash.display.MovieClip;
import flash.display.SimpleButton;
import flash.events.MouseEvent;
import flash.text.TextField;
import flash.ui.Mouse;
import flash.net.SharedObject;

public class Save
{
public var sharedObject:SharedObject;
public function Save()
{
Mouse.show();
savebtn.addEventListener( MouseEvent.CLICK, onClicksave );
sharedObject = SharedObject.getLocal( "SmimpVars" );
}
public function sethunger( hunger:Number ):void
{
hunger.text = hunger.toString();
sharedObject.data.SavedHunger = hunger;
}
public function sethunger( hunger:Number ):void
{
hunger.text = hunger.toString();
sharedObject.data.SavedHunger = hunger;
sharedObject.flush();
}
public function sethunger( hunger:Number ):void
{
hunger.text = hunger.toString();
sharedObject.data.SavedHunger = hunger;
SavedHunger.text = sharedObject.data.SavedHunger.toString();
sharedObject.flush();
}
public function sethunger( hunger:Number ):void
{
sharedObject.clear(); // for demonstrating a bug
hunger.text = hunger.toString();
if ( hunger > sharedObject.data.SavedHunger )
{
sharedObject.data.SavedHunger = hunger;
}
SavedHunger.text = sharedObject.data.SavedHunger.toString();
sharedObject.flush();
}