* @return <code>true</code> if was handled.
*/
public boolean execute(final String[] params, final String remainder) {
if (params[0] == null) {
float volume = ClientSingletonRepository.getSound().getVolume();
UserInterface ui = ClientSingletonRepository.getUserInterface();
ui.addEventLine(new StandardEventLine("Please use /volume <name> <value> to adjust the volume."));
ui.addEventLine(new HeaderLessEventLine("<name> is an item from the following list. \"master\" refers to the global volume setting.", NotificationType.CLIENT));
ui.addEventLine(new HeaderLessEventLine("<value> is in the range from 0 to 100 but may be set higher.", NotificationType.CLIENT));
ui.addEventLine(new HeaderLessEventLine("master -> " + Numeric.floatToInt(volume, 100.0f), NotificationType.CLIENT));
for (String name : ClientSingletonRepository.getSound().getGroupNames()) {
volume = ClientSingletonRepository.getSound().getGroup(name).getVolume();
ui.addEventLine(new HeaderLessEventLine(name + " -> " + Numeric.floatToInt(volume, 100.0f), NotificationType.CLIENT));
}
} else if (params[1] != null) {
changeVolume(params[0], params[1]);
} else {
ClientSingletonRepository.getUserInterface().addEventLine(