BenjaminLu

import { ethers } from 'ethers'
import dotenv from 'dotenv'
dotenv.config()

const url = process.env.PROVIDER_URL
const provider = new ethers.providers.JsonRpcProvider(url)

const call = {
  method: 'eth_call',
  params: [

BenjaminLu

geth --datadir /root/chaindata --rpc --rpccorsdomain "*" --rpcaddr "0.0.0.0" --rpcport 8545 --rpcapi "admin,db,eth,debug,miner,net,shh,txpool,personal,web3" --ws --wsaddr "0.0.0.0" --wsport 8546 --wsorigins "*" --wsapi "personal,admin,db,eth,net,web3,miner,shh,txpool,debug" --maxpeers 25 --mine --etherbase "0" --gasprice "0" --targetgaslimit "9999999" --unlock "0" --syncmode "full" --gcmode=archive

BenjaminLu

<script>
import HelloWorld from './components/HelloWorld.vue'
import Web3 from 'web3'
import abi from './abis/SupplyChainAuthorization.json'

let address = '0x9e614eba660bb33c181716a448437fa4235b53d5'
let web3 = new Web3('http://localhost:8545')

export default {
  name: 'app',

BenjaminLu

pragma solidity ^0.4.24;

/**
 * @title SafeMath
 * @dev Math operations with safety checks that throw on error
 */
library SafeMath {

  /**
  * @dev Multiplies two numbers, throws on overflow.

BenjaminLu

geth --dev --datadir ./chaindata/ --rpc --rpcaddr="0.0.0.0" --rpccorsdomain="*" --rpcapi="db,eth,net,web3,personal,web3"

BenjaminLu

for (var i = 0; i < 5; i++) {
  setTimeout(function () {
    console.log("i = " + i);
  }, 1000);
}

console.log(i);

BenjaminLu

while (true) {
  BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
  try {
      System.out.print("Enter Mid exam score : ");
      double midScore = Double.parseDouble(br.readLine());
      System.out.print("Enter roll call score : ");
      double rollCall = Double.parseDouble(br.readLine());
      System.out.print("Enter final exam score : ");
      double finalScore = Double.parseDouble(br.readLine());
      double total = midScore * 0.3 + rollCall * 0.3 + finalScore * 0.4;

BenjaminLu

INSERT INTO `copy_db_broker`.`order` (
    SELECT *
    FROM `original_db`.`order`
    WHERE `original_db`.`order`.`broker_name` = `customer_broker_name`
    AND `original_db`.`order`.`id` NOT IN (
        SELECT `id`
        FROM `copy_db_broker`.`order`
    )
)

BenjaminLu

INSERT INTO `copy_db_broker`.`order` (
    SELECT *
    FROM `original_db`.`order`
    WHERE `original_db`.`order`.`id` NOT IN (
        SELECT `id`
        FROM `copy_db_broker`.`order`
    )
)

BenjaminLu

private class GetFavoriteActivitiesAsyncTask extends AsyncTask<Void, Void, Void>
{
    List<ActivityDescription> favoriteActivityDescriptionList = new ArrayList<>();
    @Override
    protected Void doInBackground(Void... params)
    {
        HttpRequest request = HttpRequest.get(getActivity().getString(R.string.get_favorite_activities)).header("Cookie", mSession);
        if (request.ok()) {
            String response = request.body();
            try {