public void keyReleased(KeyEvent ke) {
if (ke.getKeyCode() == KeyEvent.VK_UP) {
String up = history.getUp();
if (up != null) messageText.setText(up);
} else if (ke.getKeyCode() == KeyEvent.VK_DOWN) {
String down = history.getDown();
if (down != null) messageText.setText(down);
}
}
public void keyTyped(KeyEvent ke) {
if (ke.getKeyChar() == KeyEvent.VK_ENTER) {
sendMessage();
}
}
