//+Bank()
//+ Bank(string filepath)
//+ bool SearchForAccount(string AccountNb)
//+ CheckPin(strin PIN)
//+LoadAccounts(string filepath)
//+SaveChangesToFile()
public static void LoadAccounts(string filepath)
{
listOfAccounts = FileOperations.ReadingAccounts("C:\\Users\\Andrzej\\Desktop\\C#test.txt");
}
public static void SaveChangesToFile(string filePath)
{
FileOperations.WriteAccountsToFile(filePath, listOfAccounts);
}