Help in getting value of Filed Value

Question

plz help me to solve this, i am trying to get the value of LFile.filename but it always return null value.
protected void loadExcelFile() throws SQLException
                         LoadExcelFile LFile = new LoadExcelFile(this);
               Desktop.add(LFile);
                              LFile.setVisible(true);
               LFile.show();
                              System.out.println(LFile.filename);
               try
                    LFile.setIcon(false);
                    LFile.setSelected(true);
               catch(PropertyVetoException e)
     }and the LoadExcelFile class
public LoadExcelFile(JFrame getParentFrame)
public void actionPerformed(ActionEvent e)
               String srcObj = e.getActionCommand();
               if(srcObj=="Choose")
                    int returnVal = fc.showOpenDialog(this);
                 if (returnVal == JFileChooser.APPROVE_OPTION) {
                File file = fc.getSelectedFile();
                         String part=file.getAbsolutePath();
                 filename=file.getName();
                  JTExcelFile.setText(part);
.

Answer 1

I'm curious, what is it exactly that's returning a null? You have
protected void loadExcelFile()which has no return value. You also have
public void actionPerformed(ActionEvent e)which returns no value. So where do you get the unexpected null?