我开始学习java，不知道如何在jtextfield中显示jfilechooser打开的给定文件的内容
这是我目前的代码。
为了更好地理解我的程序，我删除了一些导入和代码。

public class Afvink6 extends JFrame implements ActionListener {

private JLabel bestandnaam;
private JTextField bestand;
private JButton blader;
private JButton analyseer;
private JLabel informatie;
private JTextArea textarea;
private JLabel naampercentage;
private JPanel percentages;
private PrintWriter outFile;
private JFileChooser fileChooser;
private int reply;

@Override
public void actionPerformed(ActionEvent event) {

    if(event.getSource() == blader){
        fileChooser = new JFileChooser();
        reply = fileChooser.showOpenDialog(this);
        if (reply == JFileChooser.APPROVE_OPTION) {
            File selectedFile = fileChooser.getSelectedFile();
            bestand.setText(selectedFile.getAbsolutePath());
        }
    }

    if(event.getSource() ==analyseer){

希望有人能帮我！