1 TransferAmount = ？eth

[KetilDeng]

static let contractAddress = "0xc4a278103162f47d8aa0212644044564062b09f1"
static let toAccountAddress = "0x39db95b4f60bd75846c46df165d9e854b3cf1b56"
static let transferFunctionName = "transfer"
static let transferAmount = 1
static let gasPrice = GethNewBigInt(20000000000)!
static let gasLimit = GethNewBigInt(4300000)!

Why do you need contractAddress?
How do I get contractAddress?
1 TransferAmount = ？eth