3 Bytom java sdk contains two modules:
5 1. java-sdk encapsulates of the request data and return value of the bytom api,The signature of the transaction needs to be completed online.See the [java-sdk documentation](java-sdk/README.md) for details.
7 2. tx-signer implementation offline signature of transaction, see the [tx-signer documentation](tx-signer/README.md) for details.