private static void Run()
{
var student = new EslStudent(); // Default Level1State
student.TakeTest(70, 60, 60); // Level up to Level2State
student.TakeTest(80, 80, 80); // Level up to Level3State
student.TakeTest(85, 85, 90); // Level up to Level4State
student.TakeTest(90, 90, 90); // Level up to GraduationState
}
public override void UpdateStateByScores(EslStudent eslStudent, float readingScore, float writingScore, float speakingScore)
{
if (IsGraduationQualified(readingScore, writingScore, speakingScore))
{
eslStudent.EslState = new GraduationState();
Console.WriteLine($"You passed the test! {nameof(Level4State)} => {nameof(GraduationState)}");
}
else
{
Console.WriteLine("You Failed the test!");
}
}
public override void UpdateStateByScores(EslStudent eslStudent, float readingScore, float writingScore, float speakingScore)
{
throw new InvalidOperationException("You already graduated ESL course.");
}
public abstract void UpdateStateByScores(EslStudent eslStudent, float readingScore, float writingScore, float speakingScore);