Tree map not sorting in order - dictionary

Question

So my code so far reads in lines from a file, stores them in two separate ArrayLists. Now I'm going to have to make each node in a doubly Linked List contain the line's string and the corresponding integer, but since I cant put two ArrayLists in the declaration for a Linked List, I tried making a Tree map where the key is the string and the value is the corresponding integer. Here's the relevant code
public class FileReaderProgram
{
public static void main(String[] args) throws IOException
{
ArrayList<String> words = new ArrayList<String>();
ArrayList<Integer> numbers = new ArrayList<Integer>();
String stringComponent = " ";
int integerComponent = 0;
Scanner in = new Scanner(System.in);
System.out.println("Enter the absolute path of the file");
String fileName = in.next(); //Gets the file from the user
File inFile = new File(fileName);
**Map<String,Integer> lineCombo = new TreeMap<String,Integer>();**
try
{
Scanner fileReader = new Scanner(inFile); //Constructs Scanner for reading the file
fileReader.useDelimiter("\\n");
while (fileReader.hasNextLine())
{
String line = fileReader.nextLine(); //Gets line from the file
Scanner lineScanner = new Scanner(line); //Constructs new scanner to analyize the line
lineScanner.useDelimiter(",");
stringComponent = lineScanner.next(); //Read first word
while (!lineScanner.hasNextInt())
{
stringComponent = stringComponent + " " + lineScanner.next(); //Checks if more than one word part of string
}
integerComponent = lineScanner.nextInt(); //Read in integer
words.add(stringComponent); //Array of Strings, element number corresponding to the line it came from
numbers.add(integerComponent); //Array of Ints, same thing as above
**lineCombo.put(stringComponent, integerComponent);**
}
}
So when I run the file:
example string,1
another example,42
data,200
final,150
it prints out {another example=42, data=200, example string=1, final=150}
Why is it putting the strings in the wrong order?