Well this line: coin.setLocation(coin.getX()+4x);, (coin.getY()+3y); should probably be: coin.setLocation(coin.getX()+4x, coin.getY()+3y); And I think your foreach loop will not work this way. I'm not shure why but every time I try to do this it doesn't work. Probably because it's a method call and not an object with an Iterator. But if you do it like this: it should work.

It means that there should be a ')'. Probably because of the x following the 4. Why did you write this x and y after the numbers?

If you want to use the class List you first have to import it. So after the greenfoot import (at the top of your code) you have to write this: import java.util.List;

You don't need to be sorry. It's ok. Nowone knows everyting about a programming language if he just starts learning it. The error means that x4 is a name for a variable. (because it's no number or no java keyword like if, while, for, ... So you the compiler searches for the variable x4 but there is no such variable in your code. What do you expect the x4 for? If you want your coin to move 4 cells in x direction just use +4 without the x. (also without y)

List<Object> objects = getObjects(coin.class); for (Object obj : objects) { coin coin = (coin)obj; coin.setLocation(coin.getX()+3);,(coin.getY()+3); } is this okay

There is nothing wrong with using the following (without having to import the List class):