Introduction to OKTC Java SDK
The Java SDK for OKTC provides developers with tools to interact with the OKTC blockchain efficiently. This guide covers key functionalities, from cryptographic operations to transaction messaging.
Package Utils
Class Utils
Complement 18-bit Accuracy
Ensures numeric precision for blockchain calculations by maintaining 18 decimal places.
Convert BigInteger to Bytes
Facilitates data formatting by converting BigInteger values into byte arrays.
Package Crypto
Class AddressUtil
Generate Bech32 Address from Pubkey
Converts public keys into human-readable Bech32 addresses.
Convert Pubkey to Bech32 Pubkey
Transforms standard public keys into Bech32-encoded versions.
Address Conversion Utilities
- Hex → Bech32 address conversion
- Bech32 → Hex address reversion
Class Crypto
Key Management
- Random private key generation
- Derive public keys from private keys
- Mnemonic phrase generation/derivation
Validator Operations
Generates Bech32 validator operator addresses from hex-encoded public keys.
Class PrivateKey
new PrivateKey(String mnemonicOrHexKey) // Accepts mnemonics or hex private keysPackage Msg
Transaction Messaging Framework
Defines OKTC module-specific message types with practical examples.
Transfer Token Example
- Environment Setup
Configure network parameters and credentials. - Token Transfer
Implement cross-account transactions usingMsgSendclass.
FAQ Section
Q: How do I generate a new wallet?
A: Use Crypto.generatePrivateKey() for random key generation or PrivateKey constructor with a mnemonic phrase.
Q: What address formats does OKTC support?
A: The SDK handles both hex-encoded addresses and Bech32 formats with conversion utilities.
Q: Where can I find implementation examples?
A: Refer to main functions in message classes like 👉 MsgSend implementation for practical samples.
Q: How are validator addresses different?
A: Validator operator addresses use specialized Bech32 prefixes generated from public keys.
Integration Tips
For advanced implementations, explore our 👉 GitHub repository containing the complete SDK source code and additional samples.