how to update jTable from a link class/ fill up form class

This is the jMenuItem for my jTable:

private void cmd_updateActionPerformed(java.awt.event.ActionEvent evt) {                                           
    EditUserAccount EUA = new EditUserAccount (null, true);
    EUA.setVisible(true);
    table_user.getSelectedRow();
    table_user.getSelectedColumn();
    Update_table();

} 

This is the code for my link "fill up" form:

private void cmd_updateActionPerformed(java.awt.event.ActionEvent evt) {                                           
    EditUserAccount EUA = new EditUserAccount (null, true);
    EUA.setVisible(true);
    table_user.getSelectedRow();
    table_user.getSelectedColumn();
    Update_table();

}