another array to use in another class?

[ap814]

Hi. I have a reader class (code below) that just reads over a text file and puts items into a comma-delimited array. Items in the text file are int positionCode and String positionTitle, in the form:

102,Manager
248,DeptHead
299,Assistant
etc...

My question is: Is there a way to put ONLY the position codes (int) into a separate array?
**I want to write a method in another class that finds the position code with the lowest value.**
Is putting them in a separate array the best way or should I do it another way and how?

import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;

/**
 * reads in an employee's position in a department into memory
 */
public class PositionReader {

	private BufferedReader in;
	private Company Company;
	
	/**
	 * constructor
	 * @param fileName
	 * @throws FileNotFoundException
	 */
	public PositionReader(String fileName, Company company) throws FileNotFoundException {
		in = new BufferedReader(new FileReader(fileName));
		this.Company = company;
	}

	/**
	 * reads a position from text file
	 * @return position
	 */
	public Position readPosition() {
		String line;
		
		try {
			line = in.readLine();
		
		if (line == null || line.trim().length() == 0) {
			return null;
		}
		
		String[] fields = line.split(",");
		int positionCode = Integer.parseInt(fields[0]);
		String positionTitle = fields[1];
		
		Position position = new Position(positionCode, positionTitle);
		
		return position;
		
		} catch (IOException e) {
			return null;
		}
	}
	

	public void close() throws IOException {
		in.close();
	}
}