public void tuneInstrument(MusicInstrument inst) throws MyMusicInstrumentException {
if (inst.getName().equals("")) {
throw new MyMusicInstrumentException("Exception");
}
inst.tune();
}
public ArrayList<String> getNamesOfInstrument() {
for (MusicInstrument inst : instruments) {
allInstrumentNames.add(inst.getName());
}
return allInstrumentNames;
}
