//Create a class for speech synthesis package SpeechSynthesis import Timer.SimulatedTimer public class SpeechSynthesis { private String id private String label private String displayName private int level private boolean oneUser SpeechSynthesis(String id, String label, String displayName, int level, boolean oneUser) { this.id = id this.label = label this.displayName = displayName this.level = level this.oneUser = oneUser } def setLevel(int level) { if (level != this.level) { println("The level of speech synthesis with id:$id is changed to $level") this.level = level } } def speak(String message) { println("Speech synthesis with id:$id, SPEAKING:\"$message\"!") // As a conflict variable if (oneUser) { this.oneUser = false } else { this.oneUser = true } } }