static void Main(string[] args) { MultipleChoiceQuestion first = new MultipleChoiceQuestion(); first.SetText("What was the original name of the Java language?"); first.AddChoice("*7", false); first.AddChoice("Duke", false); first.AddChoice("Oak", true); first.AddChoice("Gosling", false); first.SetGrade(2); first.SetCategory("Knowledge"); MultipleChoiceQuestion second = new MultipleChoiceQuestion(); second.SetText("In which country was the inventor of Java born?"); second.AddChoice("Australia", false); second.AddChoice("Canada", true); second.AddChoice("Denmark", false); second.AddChoice("United States", false); second.SetGrade(1); second.SetCategory("Common knowledge"); Question third = new Question(); third.SetText("What is this programming language called"); third.SetAnswer("CSharp"); third.SetGrade(1); third.SetCategory("Common knowledge"); PresentQuestion(first); PresentQuestion(second); PresentQuestion(third); }