static void Main(string[] args)
{
// Create objects for testing
AverageScoreDisplay averageScoreDisplay =
new AverageScoreDisplay();
CurrentScoreDisplay currentScoreDisplay =
new CurrentScoreDisplay();
// Pass the displays to Cricket data
CricketData cricketData = new CricketData(currentScoreDisplay,
averageScoreDisplay);
// In real app you would have some logic to call this
// function when data changes
// Problem Example
cricketData.dataChanged();
Console.WriteLine("Problem Example Output End");
Console.WriteLine("Problem Solution with Observer Pattern");
Console.WriteLine();
// create objects for testing
AverageScoreDisplayOP averageScoreDisplayOP =
new AverageScoreDisplayOP();
CurrentScoreDisplayOP currentScoreDisplayOP =
new CurrentScoreDisplayOP();
// pass the displays to Cricket data
CricketDataOP cricketDataOP = new CricketDataOP();
// register display elements
cricketDataOP.RegisterObserver(averageScoreDisplayOP);
cricketDataOP.RegisterObserver(currentScoreDisplayOP);
// in real app you would have some logic to
// call this function when data changes
cricketDataOP.dataChanged();
//remove an observer
cricketDataOP.UnregisterObserver(averageScoreDisplayOP);
// now only currentScoreDisplay gets the
// notification
cricketDataOP.dataChanged();
}
static void Main(string[] args)
{
// create objects for testing
var averageScoreDisplay = new AverageScoreDisplay();
var currentScoreDisplay = new CurrentScoreDisplay();
// pass the displays to Cricket data
var cricketData = new CricketData();
// register display elements
cricketData.RegisterObserver(averageScoreDisplay);
cricketData.RegisterObserver(currentScoreDisplay);
// in real app you would have some logic to
// call this function when data changes
cricketData.DataChanged();
//remove an observer
cricketData.UnregisterObserver(averageScoreDisplay);
// now only currentScoreDisplay gets the
// notification
cricketData.DataChanged();
}