Arquivo

    public void lerArquivo() throws IOException {
        String tittleFC = "Selecione um arquivo PDF ou DOC:";
        final FileChooser fileChooser = new FileChooser();
        fileChooser.setInitialDirectory(new File(System.getProperty("user.home") + "/Desktop"));
        fileChooser.setTitle(tittleFC);
        fileChooser.getExtensionFilters().clear();
        fileChooser.getExtensionFilters().addAll(
        new FileChooser.ExtensionFilter("Arquivos de Texto", "*.doc","*.pdf","*.docx"));
        File arquivo = fileChooser.showOpenDialog(GraphView.window);
        labelNomeArquivo.setText(arquivo.getName());

    }