ClassCastException

[Felissa]

I'm trying to write a small text based game. I decided I would like to add items to the game. When using the Scanner I'm trying to turn a String into an Items.

since I cannot cast

Items item = (Items) scanner.nextLine();

I tried doing it this way

Object itemToBeUsed = (Object) scanner.nextLine();
Items item = (Items) itemToBeUsed;

the complier is fine with that, but at runTime it gives me a ClassCastException when I try and use it. How should I go about fixing this?

else if(cmd.equalsIgnoreCase("take")){
        	Scanner itemToTake = new Scanner(System.in);
        	Object itemBeingTaken = itemToTake.nextLine();
        	
        	Items item = (Items) itemBeingTaken;
        	return ""
           	+this.location.take(this, item);
        }
        	
        else if(cmd.equalsIgnoreCase("use")){ 
        	Scanner itemToUse = new Scanner(System.in);
        	System.out.println("what item would you like to use?");
        	
        	Object itemString = itemToUse.nextLine();
        	Items item = (Items) itemString;
        	
        	return ""+
        	useItemFromInventory(item);}

any help? Thanks.

Felissa:p

[Marcus]

What this means is, at runtime, java cannot convert from class Object to class Items. What I would do, is use the constructor in the Items class to accept your string value and use that to create your Items object.

String itemString = itemToUse.nextLine();
Items item = new Items(itemString);

This would avoid the nasty type casting and in my opinion provide cleaner code. I don't know how practical this is for you, as I don't know what your Items class looks like.

Greetings.

Marcus:cool:

[Felissa]

here is my Items class code:

package finalproject;

public interface Items {

	public void useItem(Game game);
.	
.
.
}

it's an interface, but here is a class that implements Items

package finalproject;
public class HealthPotion implements Items{
	public void useItem(Game game){
		int health = game.getHealth() + 50;
		if(health >= 100){
			game.setHealth(100);
			System.out.println("your health has increase to 100");
		}	
		else{ game.setHealth(health); 
			System.out.println("your health has increased to "+ health);
		}
	}
}

Thanks!

Felissa:p