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in Blockchain by (4.1k points)

I am using the readme guide https://github.com/web3j/web3j.

What I am interested is developing smart contracts from my host with Java + Web3j to private Ethereum network which runs on my virtual machine.

There are such lines:

Web3j web3 = Web3j.build(new HttpService());  // defaults to http://localhost:8545/
Credentials credentials = WalletUtils.loadCredentials("password", "/path/to/walletfile");

So the question is:
How should I create this wallet? Should I generate account on my VM and then copy wallet.jsonfile to my host?

1 Answer

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by (14.4k points)

WalletUtils.loadCredentials is resplendent with bugs. Therefore, my recommendation would be to create accounts beforehand. After that, you can extract the private key and use the following line of code: 

Credentials.create(privateKey)

For viewing your private key, you can use the key store file and then use myetherwallet.

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