pack();
}// </editor-fold>
private void b1ActionPerformed(ActionEvent evt) throws IOException {
Grammar g = new Grammar("src" + File.separator + "Gramatica_Logo.txt");
String cadenaString = textArea.getText();
StringTokenizer st = new StringTokenizer(cadenaString, "\n");
String aux = "";
while (st.hasMoreTokens()) {
aux += st.nextToken() + "$";