examples/solidity-data-types

DataTypes.sol

pragma solidity >=0.5.0;

contract DataTypes {
    // Boolean
    bool trueOrFalse;
    // Unsigned integer. default size is 256
    uint firstInteger;
    // The same as above, with definition
    uint256 secondInteger;
    // Signed integer, 128
    int128 thirdinteger;
    // Address, add keywork 'payable' to be able to send ether to it
    address myAddress;
    // Two byte array
    bytes2 twoBytesArray;
    // Sixteen byte array
    bytes16 sixteenBytesArray;
    // String
    string myString;
    // Array of strings (can be an array of any other data type)
    string[] myStringArray;
    // Enums
    enum direction { left, right, up, down }
}