Buffered reader

Hey, I need some help with some code part, my task in our project is to make a program that can read a LOC-file for a GPS, and this is my code so far, I've made a Jfilechooser so far that can take only LOC-files but I don't know how to create a buffered reader that can read the LOC-file and translate it in for the GPS, can anyone help me with this? this is my code so far ..

import javax.swing.*;

public class ReadGeo {

private static String fileChooser(){

JFileChooser jfc = new JFileChooser();
jfc.setAcceptAllFileFilterUsed(false);
jfc.setDialogTitle("Filechooser");
jfc.setFileFilter(new javax.swing.filechooser.FileNameExtensionFilter("L OC files", "loc"));
int resultat = jfc.showOpenDialog(null);
if (resultat != JFileChooser.APPROVE_OPTION){
JOptionPane.showMessageDialog(null, "You didnt pick a file");
System.exit(0);
}
String filnamn = jfc.getSelectedFile().getAbsolutePath();
return filnamn;
}
public static void main(String[] args){

String jfgf = fileChooser();
System.out.println(jfgf);
}

}