com.github.ontio.account.Account acct = new com.github.ontio.account.Account(ontSdk.defaultSignScheme);
acct.serializePrivateKey();//프라이빗키
acct.serializePublicKey();//퍼블릭키
acct.getAddressU160().toBase58();//base58 주소
##### 프라이빗키에 따른 계정생성
```java     
com.github.ontio.account.Account acct0 = new com.github.ontio.account.Account(Helper.hexToBytes(privatekey0), ontSdk.defaultSignScheme);
com.github.ontio.account.Account acct1 = new com.github.ontio.account.Account(Helper.hexToBytes(privatekey1), ontSdk.defaultSignScheme);
com.github.ontio.account.Account acct2 = new com.github.ontio.account.Account(Helper.hexToBytes(privatekey2), ontSdk.defaultSignScheme);

ontSdk.getWalletMgr().createAccounts(10, "passwordtest");
ontSdk.getWalletMgr().writeWallet();

랜덤 생성:
AccountInfo info0 = ontSdk.getWalletMgr().createAccountInfo("passwordtest");

프라이빗키를 통한 생성:
AccountInfo info = ontSdk.getWalletMgr().createAccountInfoFromPriKey("passwordtest","e467a2a9c9f56b012c71cf2270df42843a9d7ff181934068b4a62bcdd570e8be");

계정 획득:
com.github.ontio.account.Account acct0 = ontSdk.getWalletMgr().getAccount(info.addressBase58,"passwordtest",salt);

싱글서명 주소 생성:
String privatekey0 = "c19f16785b8f3543bbaf5e1dbb5d398dfa6c85aaad54fc9d71203ce83e505c07";
String privatekey1 = "49855b16636e70f100cc5f4f42bc20a6535d7414fb8845e7310f8dd065a97221";
String privatekey2 = "1094e90dd7c4fdfd849c14798d725ac351ae0d924b29a279a9ffa77d5737bd96";

//계정을 생성하고 주소를 획득합니다. 
com.github.ontio.account.Account acct0 = new com.github.ontio.account.Account(Helper.hexToBytes(privatekey0), ontSdk.defaultSignScheme);
Address sender = acct0.getAddressU160();

//base58주소 해독
sender = Address.decodeBase58("AVcv8YBABi9m6vH7faq3t8jWNamDXYytU2")；

멀티서명 주소 생성:
Address recvAddr = Address.addressFromMultiPubKeys(2, acct1.serializePublicKey(), acct2.serializePublicKey());

String ip = "http://polaris1.ont.io";
String rpcUrl = ip + ":" + "20336";
OntSdk ontSdk = OntSdk.getInstance();
ontSdk.setRpc(rpcUrl);
ontSdk.setDefaultConnect(wm.getRpc());

또는 restful 사용:
String restUrl = ip + ":" + "20334";
ontSdk.setRestful(restUrl);
ontSdk.setDefaultConnect(wm.getRestful());

也可以选择websocket：
String wsUrl = ip + ":" + "20335";
ontSdk.setWesocket(wsUrl, lock);
ontSdk.setDefaultConnect(wm.getWebSocket());

ontSdk.getConnect().getBalance("AVcv8YBABi9m6vH7faq3t8jWNamDXYytU2");
ontSdk.nativevm().ont().queryBalanceOf("AVcv8YBABi9m6vH7faq3t8jWNamDXYytU2")
ontSdk.nativevm().ong().queryBalanceOf("AVcv8YBABi9m6vH7faq3t8jWNamDXYytU2")

ont정보 조회:
System.out.println(ontSdk.nativevm().ont().queryName());
System.out.println(ontSdk.nativevm().ont().querySymbol());
System.out.println(ontSdk.nativevm().ont().queryDecimals());
System.out.println(ontSdk.nativevm().ont().queryTotalSupply());

ont정보 조회:
System.out.println(ontSdk.nativevm().ong().queryName());
System.out.println(ontSdk.nativevm().ong().querySymbol());
System.out.println(ontSdk.nativevm().ong().queryDecimals());
System.out.println(ontSdk.nativevm().ong().queryTotalSupply());

송금인과 수취인 주소 :
Address sender = acct0.getAddressU160();
Address recvAddr = acct1;
//
멀티서명 주소 생성
//Address recvAddr = Address.addressFromMultiPubKeys(2, acct1.serializePublicKey(), acct2.serializePublicKey());

이체 트랜젝션 구성
long amount = 1000;
Transaction tx = ontSdk.nativevm().ont().makeTransfer(sender.toBase58(),recvAddr.toBase58(), amount,sender.toBase58(),30000,0);
String hash = tx.hash().toString()

트랜젝션에 서명하기:
ontSdk.signTx(tx, new com.github.ontio.account.Account[][]);
//멀티서명 주소에서의 서명 방법：
ontSdk.signTx(tx, new com.github.ontio.account.Account[][]);
//만약 송금인이 네트워크비용 지불인 주소와 다른 경우에는 네트워크비용 지불인의 서명을 추가해야 합니다.


사전 집행 전송(옵션):
Object obj = ontSdk.getConnect().sendRawTransactionPreExec(tx.toHexString());
System.out.println(obj);
리턴 성공:
{"State":1,"Gas":30000,"Result":"01"}
잔액 부족으로 리턴 오류 :
com.github.ontio.network.exception.RestfulException: {"Action":"sendrawtransaction","Desc":"SMARTCODE EXEC ERROR","Error":47001,"Result":"","Version":"1.0.0"}


트랜젝션 전송:
ontSdk.getConnect().sendRawTransaction(tx.toHexString());


트랜젝션 동기화 전송:
Object obj = ontSdk.getConnect().syncSendRawTransaction(tx.toHexString());

response success:
{
	"GasConsumed": 0,
	"Notify": [],
	"TxHash": "cb9e0d4a7a4aea0518bb39409613b8ef76798df3962feb8f8040e05329674890",
	"State": 1
}

response fail,reject by txpool:
com.github.ontio.sdk.exception.SDKException: {"Action":"getmempooltxstate","Desc":"UNKNOWN TRANSACTION","Error":44001,"Result":"","Version":"1.0.0"}

1.싱글서명 추가
ontSdk.addSign(tx,acct0);

2.멀티서명 추가
ontSdk.addMultiSign(tx,2,new byte[][]{acct.serializePublicKey(),acct2.serializePublicKey()},acct);
ontSdk.addMultiSign(tx,2,new byte[][]{acct.serializePublicKey(),acct2.serializePublicKey()},acct2);

3.멀티서명을 여러 회 나눠서 서명
acct0서명：
ontSdk.addMultiSign(tx,2,new byte[][]{acct.serializePublicKey(),acct2.serializePublicKey()},acct);

acct1서명：
ontSdk.addMultiSign(tx,2,new byte[][]{acct.serializePublicKey(),acct2.serializePublicKey()},acct2);

Address sender1 = acct0.getAddressU160();
Address sender2 = Address.addressFromMultiPubKeys(2, acct1.serializePublicKey(), acct2.serializePublicKey());
int amount = 10;
int amount2 = 20;

State state = new State(sender1, recvAddr, amount);
State state2 = new State(sender2, recvAddr, amount2);
Transaction tx = ontSdk.nativevm().ont().makeTransfer(new State[]{state1,state2},sender1.toBase58(),30000,0);

//첫 번째 송금인은 싱글서명이고 두 번째 송금인은 멀티서명 입니다. 
ontSdk.signTx(tx, new com.github.ontio.account.Account[][]);
ontSdk.addMultiSign(tx,2,new byte[][]{acct1.serializePublicKey(),acct2.serializePublicKey()},acct1);
ontSdk.addMultiSign(tx,2,new byte[][]{acct1.serializePublicKey(),acct2.serializePublicKey()},acct2);

서열화한 트랜젝션을 서명디바이스에 전송:
Transaction tx = ontSdk.nativevm().ont().makeTransfer(sender.toBase58(),recvAddr.toBase58(), amount,sender.toBase58(),30000,0);
String txHex = tx.toHexString();

수신인이 트랜젝션을 리버스오더 후 서명:

Transaction txRx = Transaction.deserializeFrom(Helper.hexToBytes(txHex));


서명：
ontSdk.addSign(txRx,acct0);

노드 부팅 시 서명디바이스 서비스 켜기: 
go run SigSvr.go


서명디바이스URL 설치:
String url = ip + ":" + "20000/cli";
OntSdk ontSdk = OntSdk.getInstance();
ontSdk.setSignServer(url);
        

String txHex = tx.toHexString();

싱글서명 트랜젝션 요청 : 
ontSdk.getSignServer().sendSigRawTx(txHex);
 
멀티서명 트랜젝션 요청: 
String[] signs = new String[]{"02039b196d5ed74a4d771ade78752734957346597b31384c3047c1946ce96211c2a7",
                    "0203428daa06375b8dd40a5fc249f1d8032e578b5ebb5c62368fc6c5206d8798a966"};
ontSdk.getSignServer().sendMultiSigRawTx(txHex,2,signs);

이체 트랜젝션 구성 및 서명 요청:
ontSdk.getSignServer().sendSigTransferTx("ont","TU5exRFVqjRi5wnMVzNoWKBq9WFncLXEjK","TA5SgQXTeKWyN4GNfWGoXqioEQ4eCDFMqE",10,30000,0);
            

com.github.ontio.account.Account acct = new com.github.ontio.account.Account(ontSdk.defaultSignScheme);

byte[] data = "12345".getBytes();
byte[] signature = ontSdk.signatureData(acct, data);

System.out.println(ontSdk.verifySignature(acct.serializePublicKey(), data, signature));