jsphdnl

pragma solidity ^0.4.18;
contract TRexCoin {
    //Coin name
    string public name = "TRexCoin"; 
    ///Symbol
    string public symbol = "TRC"; 
    mapping (address => uint256) balances;
    mapping (address => mapping (address => uint256)) allowed;
    uint256 public totalSupply = 1000000;
    

jsphdnl

var crypto = require('crypto')
  , shasum = crypto.createHash('sha1');
/*
 * Install "cyrpto" lib dependeny to compute the hash
 *  `npm install crypto`
 */

class TRBlock {
  /**
   * constructor for creating a block

jsphdnl

import com.fasterxml.jackson.annotation.JsonIgnore;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;

import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

/**

jsphdnl

import com.fasterxml.jackson.annotation.JsonIgnore;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;

import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

/**

jsphdnl

import hashlib
import json

class TRBlock(object) :

    def __init__(self, index, timestamp, data, prevHash, nonce, target):
        '''
            Default constructor for creating a block.

            Parameters

jsphdnl

import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.Base64;

class SHA1Gen1 {
    public static final String SHA1 = "SHA-1";
    /**
     * Encode data in base64 string 
     * @param data data in bytes
     * @return a string in base64 format