Phone number problem

PhoneNumberSolver.java

import java.util.*;
import java.lang.*;
import java.util.Map;

public class PhoneNumberSolver{

//3 numbers just for examples sake so far
	private static Integer[] phoneNumber = new Integer[]{new Integer(3) , new Integer(5), new Integer(5)}; 
	/*
	String{]{"d","e","f"})
	String{]{"j","k","l"}
	String{]{"j","k","l"}
	
	djj
	djk
	djl
	dkj
	dkk
	dkl
	dlj
	dlk
	dll
	ejj
	ejk
	ejl
	ekj
	ekk
	ekl
	elj
	elk
	ell
	fjj
	fjk
	fjl
	fkj
	fkk
	fkl
	flj
	flk
	fll
	
	*/

	private static final Map <Integer, String[]> alphaNumericMap = new HashMap<Integer, String[]>();

	private static List<String> alphaNumericListOfPossibilites = new  ArrayList<String>();

	public static void main(String [] args){
	initMap();

		//3
		String [] optionsForPositionZero = alphaNumericMap.get(phoneNumber[0]); 
		String [] optionsForPositionOne = alphaNumericMap.get(phoneNumber[1]); 
		String [] optionsForPositionTwo = alphaNumericMap.get(phoneNumber[2]); 

		for (int zeroIterator=0;zeroIterator<optionsForPositionZero.length;zeroIterator++ ){
				for (int oneIterator=0;oneIterator<optionsForPositionZero.length;oneIterator++ ){
					for (int twoIterator=0;twoIterator<optionsForPositionTwo.length;twoIterator++ ){
					alphaNumericListOfPossibilites.add(optionsForPositionZero[zeroIterator] 
					+ optionsForPositionOne[oneIterator] 
					+ optionsForPositionTwo[twoIterator]);

					}//endTwoIterator
				}//end oneIterator
		} //end zeroIterator
		
		Object[] alphaNumericArrayOfPossibilites = alphaNumericListOfPossibilites.toArray();
		

		System.out.println(Arrays.toString(alphaNumericArrayOfPossibilites));



	} //end main





	private static void initMap (){

		alphaNumericMap.put(new Integer(1),new String[]{"1"});
		alphaNumericMap.put(new Integer(2),new String[]{"a","b","c"});
		alphaNumericMap.put(new Integer(3),new String[]{"d","e","f"});
		alphaNumericMap.put(new Integer(4),new String[]{"g","h","i"});
		alphaNumericMap.put(new Integer(5),new String[]{"j","k","l"});
		alphaNumericMap.put(new Integer(6),new String[]{"m","n","o"});
		alphaNumericMap.put(new Integer(7),new String[]{"p","q","r","s"});
		alphaNumericMap.put(new Integer(8),new String[]{"t","u","v"});
		alphaNumericMap.put(new Integer(9),new String[]{"w","x","y","z"});
		alphaNumericMap.put(new Integer(0),new String[]{"0"});
	}


}