コード例 #1
0
 public IGumballMachineState TurnLever()
 {
     Console.WriteLine("Purchase successful.");
     return(NoCoinState.GetInstance());
 }
コード例 #2
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 public static IGumballMachineState GetInstance()
 {
     return(_instance ?? (_instance = new NoCoinState()));
 }
コード例 #3
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 public IGumballMachineState EjectCoin()
 {
     Console.WriteLine("Coin ejected.");
     return(NoCoinState.GetInstance());
 }