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Thread: 3d list array

  1. #1
    Junior Member spoX's Avatar
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    Default 3d list array

    Hello.

    I have some problem in understanding how to use a 3 dimensional ArrayList.

    Heres hows it looks so far.

    I dont understand how to retrive values from the list.
    Tried all sorts of code like get_material to retrive string value.
    But maybe I got it wrong in the initialising?


    gui class....
    		ArrayList<material> material_List = new ArrayList<material>();
    		material_List.add(new material(0, "Silver", 427));
    		material_List.add(new material(1, "Copper", 398));
    		material_List.add(new material(2, "Gold", 315));
    ....
     
    public class material {
     
    	private static String material;
     
    	public material(int id, String material, double materialValue){
     
    	}
     
    	public static material create(int Id, String material, double materialValue){
    		return new material(Id, material, materialValue);
    	}
     
    	public String get_material(){
    		return material;
    	}
     
    }


    If u can help, thanks.
    -sorry for my bad spelling English.


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    Default Re: 3d list array

    The class 'material' should begin with a capital letter, as in Material.

    The ArrayList you've built is 1-dimensional rather than 3, and the single dimension is filled with Material objects.

    Since each element in the arraylist is a Material object, Material methods could be used to obtain details about those objects/elements. For example, from the code you posted above, to get the metal from the first element, the code would look something like:

    material_List.get( 0 ).getMetal();

    Assuming there was a method Material.getMetal() that returns the metal type of the object.

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