Output will be

class box 
    {
        int width;
        int height;
        int length;
    } 
    class main
    {
        public static void main(String args[]) 
        {        
             box obj = new box();
             obj.width = 1;
             obj.height = 2;
             obj.length = 3;
             int y = obj.width * obj.height * obj.length; 
             System.out.print(y);
        } 
    }