ArrayList issues

Question

Hello everyone,
I have an arraylist mishap that I can't spot, and at this point I need a second pair of eyes. The offending class "Places" compiles, as do the other classes that include the main method (that's MedievalQuestGame1) and The Wilderness Class. However, when I run the program, calling the GoToPlace() method in Places, an exception is thrown: IndexOutOfBounds: index: 0, size: 0. I'm not sure why it says this. If someone could tell me what I'm overlooking, or what needs to be done differently, it would be most appreciated. Here are the classes (abbreviated for your convenience). The first is the main() method class:
import java.lang.*;
import java.util.*;
public class MedievalQuestGame1{     
     public static void main(String[] args){
          Places1.GoToPlace(0);
}And the second is a class called wilderness the Places class holds an arraylist of, and is suppossed to call methods from:
import java.lang.*;
import java.util.*;
public class Wilderness1{     
     String WildName;
//CLASS CONSTRUCTOR
     public Wilderness1(String name){
          WildName = name;
//GETWILDNAME
     public String getWildName(){
          return WildName;
//INTERFACE
     public void Interface(){
          System.out.println("Wilderness Interace online");     
}import java.lang.*;
import java.util.*;
public class Places1{
     static int i;
     static Object WhatClass = new Object();
     static Wilderness1 WildernessObject = new Wilderness1("happy place");
     static ArrayList<Object> Places = new ArrayList<Object>(1);
//CLASS CONSTRUCTOR
     private Places1(){
          Wilderness1 BoisonBerry_Forest = new Wilderness1("happy place");
          Places.add(BoisonBerry_Forest);
//GOTOPLACE method
     public static void GoToPlace(int n){
          i += n;
          WhatClass = Places.get(i);
          if(WhatClass instanceof Wilderness1){
               //cast Places.get(i) object back to it's correct class
               WildernessObject = (Wilderness1) Places.get(i);
               //all this to call wilderness methods on the former "Object"
               WildernessObject.Interface();

Answer 1

make your class constructor in Places1 public instead of private:
//CLASS CONSTRUCTOR
public Places1 () {
    Wilderness1 BoisonBerry_Forest = new Wilderness1("happy place");
    Places.add(BoisonBerry_Forest);
}then remove the static keyword from GoToPlace:
public void GoToPlace(int n)finally, in your main method call GoToPlace from a created Places1 object, not a static call:
public static void main(String[] args){
    Places1 places = new Places1 ();
    places.GoToPlace (0);
}