# Testing Code Highlighter

**URL:** <https://forum.kirupa.com/t/testing-code-highlighter/173385>\
**Category:** meta\
**Created:** [December 24, 2005, 7:25am UTC](https://forum.kirupa.com/t/testing-code-highlighter/173385 "2005-12-24T07:25:26Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![kirupa](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.kirupa.com/kirupa/32/11616_2.png) [@kirupa](https://forum.kirupa.com/u/kirupa)\
**Post date:** [December 24, 2005, 7:25am UTC](https://forum.kirupa.com/t/testing-code-highlighter/173385/1 "2005-12-24T07:25:26Z")

</div>

```java

public void addGUIObserver(GUIObserver o) {
treePanelObservers.add(o);
}
public void addEngineObserver(GUIEngineObserver e) {
engineObservers.add(e);
e.addEngineStateListener(this);
}
public void sendMessage(String text){
if (waitingDialog!=null && !waitingDialog.isDisposed()){
waitingDialog.setText(text); 
}
}

```