caver-java is a lightweight, high modular, convenient Java and Android library to interact with clients (nodes) on the Klaytn network: This library is an interface which allows Java applications to easily communicate with Klaytn network.
Complete implementation of Klaytn’s JSON-RPC client API over HTTP and IPC
Support for Klaytn transaction, account, and account key types
Auto-generation of Java smart contract wrapper to deploy and execute a smart contract from native Java code
Creating a new wallet and managing Klaytn wallets
Command line tools