Inheritance & Visibility

[filip]

Do you have an actual contract in remix saved as DogContract1.sol? That is required in order to import it.

[goh]

Hi Filip enclosed are two screenshots showing unable to import. I am using firefox trying few different URL,s . Same result with Google Chrome also. Local host connected. Thank you.

[filip]

Your contract file needs to be names DogContract.sol. Right now the name is importto.sol. That’s why it doesn’t work.

[goh]

Hi Filip. Yes it works… Thanks:

[kato]

I would like to know how to perform inheritance in super block studio. Thanks.

[filip]

As of now, superblocks doesn’t support multiple solidity files. You would have to create multiple contracts within the same solidity file. I will also check with my contact over at superblocks to see if that’s a feature that they are working on.

[Guatever]

Man, the herd has thinned!

[7unrider]

Accidentally posted this assignment on 5066 instead of 5065

pragma solidity ^0.4.0;

contract PersonContract{

struct Person {
    string name;
    uint age;
}

Person[] People;

    // setter function 
function addPerson(string _cname, uint _age) {
   People.push(Person(_cname, _age));
}

// getter function that returns Average Age over all the persons in the array People
function getAverageAge() returns (uint){
    
    uint numOfPersons = 0;
    uint totalAge = 0;
    
    for(uint i = 0; i < People.length; i++ ) {
        totalAge += People[i].age;
        numOfPersons++;
    }
    
    return totalAge/numOfPersons;
}

}

[eggavocado]

Hello everyone. Can I get some help, please? I am getting these undeclared identifiers errors. Where did I make the mistake?

Thank you.

[filip]

It should be

address owner = msg.sender;

not

address.owner = msg.sender;

I hope that helps.

[eggavocado]

OMG yes, that was it… amazing how a single dot can make one go nuts lol … thanks a lot, Filip!

[Fernando]

Hi Filip, thanks for your great help.
This is a general question about Solidity: Is there a practical way in Solidity to retrieve / get more than one element at a time? If not? What would be an efficient way to achieve it?