Self Generation Java Code

package com.samkough.selfgeneration;

import java.util.ArrayList;
import java.util.Date;
import java.util.Timer;
import java.util.TimerTask;

public class Main
{
	// 1000 milliseconds == 1 second
	public long delay = 2000; // milliseconds
	public LoopTask task = new LoopTask();
	public Timer timer = new Timer("TaskName");

	public void start()
	{
	    timer.cancel();
	    timer = new Timer("TaskName");
	    Date executionDate = new Date(); // no params = now
	    timer.scheduleAtFixedRate(task, executionDate, delay);
	}

	public class LoopTask extends TimerTask
	{
		public ArrayList<Tiles> map = new ArrayList<Tiles>();
		public Tiles t1 = new Tiles();
		public StringBuilder builder = new StringBuilder();
		public String text = "";

	    public void run()
	    {
	    	// value instantiations
	    	map.add(t1);

	    	// gets rid of the commas and the brackets
	    	for (Tiles value : map)
	    	{
	    	    builder.append(value);
	    	}
	    	text = builder.toString();

	    	System.out.println(text);
	    }
	}

	public static void main(String[] args)
	{
		Main runner = new Main();
		runner.start();
	}
}
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package com.samkough.selfgeneration;

import java.util.Random;

public class Tiles
{
	public static int counter;
	public int tileId;

	public String ground, hill;

	public Tiles()
	{
		tileId = counter;
		counter++;
	}

	// DIFFERENT TILES
	public String ground()
	{
		return "__________";
	}

	public String hill()
	{
		return "     /\\     \n"
			 + "    /  \\    \n"
		     + "   /    \\   \n";
	}

	public void randomizer()
	{
		Random rand = new Random();
		// 50 is the maximum and the 1 is our minimum
		int  n = rand.nextInt(50) + 1;
	}

	public String toString()
	{
		return ground() + "\n" + hill() + "";
	}
}
/*
ground = "__________";

hill = "     /\\     \n"
     + "    /  \\    \n"
	 + "   /    \\   \n";
 */