Is there any way to transfer bitcoins from one wallet to other wallet on the same same system?

[Abhishek Singh Rajawat]

I am looking for code by which I can transfer bitcoins from one wallet to another wallet. I created both wallet's files on my machine using bitcoinj liberary (using WalletAppKit and Wallet class. file names XXX.wallet and XXX.spvchain) and I have full access on both wallets. I tried to find any code in bitcoinj sample codes but I couldn't. Can anyone help me with some code example, how to transfer bitcoins from 1 wallet to another without internet connection (on my local machine). You can also understand it as offline transfer of bitcoins because I have both wallets. I want to transfer coins on testnet3 accounts or mainnet accounts/wallets. This is actually my project's part of implementation but I am not getting any sample code to do this.
Please help....

Thanks in advance....