static void Main(string[] args)
{
PlayerCharachter[] players = new PlayerCharachter[3]
{
new PlayerCharachter {
Name = "Rehan"
},
new PlayerCharachter(), //Name = Null
null //PlayerCharachter = null
};
//PlayerCharachter[] players = null;
string p1 = players?[0]?.Name;
string p2 = players?[1]?.Name;
string p3 = players?[2]?.Name;
//player.DaysSinceLastLogin = 42;
//PlayerDisplayer.Write(players);
//int days = player.DaysSinceLastLogin.Value;
//int days = player ?. DaysSinceLastLogin ?? -1;
//Console.WriteLine(days);
Console.ReadLine();
}
public static void Write(PlayerCharachter player)
{
if (string.IsNullOrWhiteSpace(player.Name))
{
Console.WriteLine("Player is Null Or all Whitespaces");
}
else
{
Console.WriteLine(player.Name);
}
//int days = player.DaysSinceLastLogin.GetValueOrDefault(-1);
//Conditional Operator -> ?:
//int days = player.DaysSinceLastLogin.HasValue ? player.DaysSinceLastLogin.Value : -1 ;
//Null Coalescing Operator -> ??
int days = player.DaysSinceLastLogin ?? -1;
//Null-Conditional Operator -> ?. ?[
//int days = player?.DaysSinceLastLogin ?? -1;
Console.WriteLine($"{days} days since last login");
/*if(player.DaysSinceLastLogin.HasValue)
* {
* Console.WriteLine(player.DaysSinceLastLogin.Value);
* }
* else
* {
* Console.WriteLine("No Value for DaysSinceLastLoagin");
* }*/
if (player.DateOfBirth == null)
{
Console.WriteLine("No DOB has been specified.");
}
else
{
Console.WriteLine(player.DateOfBirth);
}
if (player.IsNoob == null)
{
Console.WriteLine("Player newbie Status is unknown.");
}
else if (player.IsNoob == true)
{
Console.WriteLine("Player is newbie");
}
else
{
Console.WriteLine("Player is experienced");
}
}
