Getting a variable value from a java action listener?

Question

Sorry for the newbish question, I'm trying to create a GUI for a simple application using JAVA and Swing but I'm stuck trying to get a variable value generated within an action listener from the outside.

public geRes() 
{
    setTitle("geRes");
    setBounds(100, 100, 272, 308);
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    getContentPane().setLayout(new FlowLayout(FlowLayout.CENTER, 5, 5));



    JButton btnNewButton = new JButton("igen");
    btnNewButton.addMouseListener(new MouseAdapter() 
    {

        @Override
        public void mouseClicked(MouseEvent e) 
        {
              JFileChooser fc = new JFileChooser();
              fc.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
              fc.showOpenDialog(fc.getParent());
              fc.getName();
        }
    });             
    btnNewButton.setToolTipText("Selec");
    getContentPane().add(btnNewButton);

    JButton btnCivos = new JButton("smbinar");
    btnCivos.addMouseListener(new MouseAdapter() 
    {
        @Override
        public void mouseClicked(MouseEvent e) 
        {
                File dir = new File(); // I want to use fc.getName() as argument there

I'd like to access fc.getName() from the second method, inside a different button. Any suggestions? Thanks in advance!

Answer 1

make your JFileChooser as a global variable so you could call it from the other method.

initialize it outside the method

JFileChooser fc;

you can place it here:

public geRes() 
{
    JFileChooser fc;
    setTitle("geRes");
    ...

then when you use the JFileChooser, it will look like this

fc = new JFileChooser();
          fc.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
          ...

then, you can call now the JFileChooser from the other method.

JButton btnCivos = new JButton("smbinar");
btnCivos.addMouseListener(new MouseAdapter() 
{
    @Override
    public void mouseClicked(MouseEvent e) 
    {
       //you can now get the value of fc.getName()