.txt

try {
    Path url = Paths.get("c:/ctibar/t.txt");
    String textoLido = new String(Files.readAllBytes(url));
}catch(IOException erro) {

}

public class FSystemTray extends javax.swing.JFrame {
  String textoLido;


                public void mouseClicked(MouseEvent me) {
                    toFront();
                    ti.displayMessage(ramal(),
                            TrayIcon.MessageType.INFO); 
                }


public String ramal () {
    try {   
     Path url = Paths.get("c:/ctibar/ctibar.ini");   
     return textoLido = new String(Files.readAllBytes(url));   
}catch(IOException erro) {   
  return null; 
}    
    
}