private void closeButtonActionPerformed(java.awt.event.ActionEvent evt)//GEN-FIRST:event_closeButtonActionPerformed
    {//GEN-HEADEREND:event_closeButtonActionPerformed
        try
        {
          echoClient.close();
        } catch (IOException ex)
        {
            Logger.getLogger(ChatGui.class.getName()).log(Level.SEVERE, null, ex);
        }
    }//GEN-LAST:event_closeButtonActionPerformed