Created
March 31, 2018 10:08
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| import Foundation | |
| var book1: Book = Book() | |
| var executor: CommandExecutor = CommandExecutor() | |
| executor.addCommand(BuyCommand(book1)) | |
| executor.runCommand() | |
| print("Current owner: \(book1.currentOwner!)") | |
| executor.addCommand(GiftFriendCommand(book1, "Mahbub")) | |
| executor.addCommand(SellCommand(book1)) | |
| executor.runCommand() | |
| print("Current owner: \(book1.currentOwner!)") |
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