private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton2ActionPerformed
        // TODO add your handling code here:
        FileDialog fd=new FileDialog(this);
        fd.show();
        dir=fd.getDirectory();
        file=fd.getFile();
        Mainframe_Txt_File.setText(dir+file);
    }//GEN-LAST:event_jButton2ActionPerformed