pragma solidity >=0.4.22 <0.6.0;

contract Ownable {
	address public owner;
	event OwnershipRenounced(address indexed previousOwner);
	event OwnershipTransferred(address indexed previousOwner,address indexed newOwner);
	
	constructor() public {
		owner = msg.sender;
	}
	modifier onlyOwner() {
		require(msg.sender == owner);
		_;
	}
	function transferOwnership(address newOwner) public onlyOwner {
		require(newOwner != address(0));
		emit OwnershipTransferred(owner, newOwner);
		owner = newOwner;
	}
	function renounceOwnership() public onlyOwner {
		emit OwnershipRenounced(owner);
		owner = address(0);
	}
}

library SafeMath {
	function mul(uint256 a, uint256 b) internal pure returns (uint256 c) {
		if (a == 0) {
			return 0;
		}
		c = a * b;
		assert(c / a == b);
		return c;
	}
	function div(uint256 a, uint256 b) internal pure returns (uint256) {
		return a / b;
	}
	function sub(uint256 a, uint256 b) internal pure returns (uint256) {
		assert(b <= a);
		return a - b;
	}
	function add(uint256 a, uint256 b) internal pure returns (uint256 c) {
		c = a + b;
		assert(c >= a);
		return c;
	}
}

contract ERC20Basic {
	function totalSupply() public view returns (uint256);
	function balanceOf(address who) public view returns (uint256);
	function transfer(address to, uint256 value) public returns (bool);
	event Transfer(address indexed from, address indexed to, uint256 value);
}

contract ERC20 is ERC20Basic {
	function allowance(address owner, address spender) public view returns (uint256);
	function transferFrom(address from, address to, uint256 value) public returns(bool);
	function approve(address spender, uint256 value) public returns (bool);
	event Approval(address indexed owner, address indexed spender, uint256 value);
}

contract BasicToken is ERC20Basic {
	using SafeMath for uint256;
	mapping(address => uint256) balances;
	uint256 totalSupply_;
	
	function totalSupply() public view returns (uint256) {
		return totalSupply_;
	}
	
	function transfer(address _to, uint256 _value) public returns (bool) {
		require(_to != address(0));
		require(_value <= balances[msg.sender]);
		
		balances[msg.sender] = balances[msg.sender].sub(_value);
		balances[_to] = balances[_to].add(_value);
		emit Transfer(msg.sender, _to, _value);
		return true;
	}
	
	function balanceOf(address _owner) public view returns (uint256) {
		return balances[_owner];
	}
}

contract StandardToken is ERC20, BasicToken {
	mapping (address => mapping (address => uint256)) internal allowed;
	
	function transferFrom(address _from, address _to, uint256 _value) public returns(bool) {
		require(_to != address(0));
		require(_value <= balances[_from]);
		require(_value <= allowed[_from][msg.sender]);
		balances[_from] = balances[_from].sub(_value);
		balances[_to] = balances[_to].add(_value);
		allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value);
		emit Transfer(_from, _to, _value);
		return true;
	}
	
	function approve(address _spender, uint256 _value) public returns (bool) {
		require((_value == 0 ) || (allowed[msg.sender][_spender] == 0));
		allowed[msg.sender][_spender] = _value;
		emit Approval(msg.sender, _spender, _value);
		return true;
	}
	
	function allowance(address _owner, address _spender) public view returns (uint256) {
		return allowed[_owner][_spender];
	}
	
	function increaseApproval(address _spender, uint _addedValue) public returns (bool){
		allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue);
		emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
		return true;
	}
	
	function decreaseApproval(address _spender, uint _subtractedValue) public returns(bool) {
		uint oldValue = allowed[msg.sender][_spender];
		if (_subtractedValue > oldValue) {
			allowed[msg.sender][_spender] = 0;
		} else {
			allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue);
		}
		emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
		return true;
	}
}

contract TokenContract is StandardToken{
	address public constant add = 0x0000000000000000000000000000000000000000;
	string public constant name="JDE";
	string public constant symbol="JDE";
	uint8 public constant decimals=18;
	uint256 public constant INITIAL_SUPPLY=1000000000000000000000000;
	uint256 public constant MAX_SUPPLY = 100 * 10000 * 10000 * (10 **uint256(decimals));
	address public constant holder=0xE38e798cfB28cF093D29Aa91984625b5C7a17fe3;
	
	constructor() TokenContract() public {
		totalSupply_ = INITIAL_SUPPLY;
		balances[holder] = INITIAL_SUPPLY;
		emit Transfer(add, holder, INITIAL_SUPPLY);
	}
}

{
  "compilationTarget": {
    "TokenContract.sol": "TokenContract"
  },
  "evmVersion": "petersburg",
  "libraries": {},
  "optimizer": {
    "enabled": false,
    "runs": 200
  },
  "remappings": []
}