function safeWithdrawal() public afterDeadline {
if (!fundingGoalReached) {
uint amount = balanceOf[msg.sender];
balanceOf[msg.sender] = 0;
if (amount > 0) {
if (msg.sender.send(amount)) { //is this a condition or a command?
emit FundTransf
我正在写一个DBUnit测试。当从xml文件导出数据时,编译器会产生以下错误:
java.io.FileNotFoundException: ru/iteco/blockchain/rzd/cred/core/server/db/hibernate/dao/contract/contract-data.xml (No such file or directory).
下面是代码的相应部分:
@Before
public void setUp() throws Exception {
super.setUp();
beforeData = new FlatXmlDataSet(
有没有人幸运地跑到macOS塞拉贝塔?在升级和试用之后,我会经常崩溃。
每次在崩溃日志中,原因似乎是不同的。以下是一个例子:
> Last login: Fri Aug 12 20:10:42 on ttys000 Erics-MacBook:~ Eric$
> /Applications/Ethereum-Wallet.app/Contents/Frameworks/node/geth/geth ;
> exit; I0812 20:17:43.023333 cmd/utils/flags.go:678] You're one of the
> lucky f
我已经使用arraylist容器对象(块类)在java中实现了一个简单的区块链。
public static ArrayList<Block> blockchain = new ArrayList<Block>();
..。和block类,包含我需要存储到区块链中的事务。
public Block(transaction data,String previousHash ) {
this.data = data;
this.previousHash = previousHash;
this.timeStamp = new Dat