Setatik

// g++ kelaksu.cpp -o kelasku -std=c++11
#include <iostream>

class Kelasku
{
public:
    // Only static const data members of integral or enumeration
    // type could have been initialized to a value
    static const int konstanku = 135;

    // This will error due to "non literal value"
    //static std::string fakta{"Satria Ady Pradana ganteng amat"};

    // This will be okay
    std::string fakta{"Ternyata memang benar bahwa Satria Ady Pradana emang ganteng"};

    // This too
    static std::string fakta2;

    // Initialize array is ok, as long as it's not static
    int larik[10]{0,2,4,6,8,10,12,14,16,18};

    // A static array has to follow default way
    static int larik_konst[10];

    // Or it should be this (const static array)
    static constexpr int larik_larikan[] {25,20,-16,19,-1,19,-5,-5,-16,39,49,66,66,57,63,66,67,-16,56,53,66,53};

    // Another one
    static constexpr char kata_kami[][32] {"Satria Ady Pradana", "anak sholeh"};
};

int Kelasku::larik_konst[10]{1,3,5,7,9,11,13,15,17,19};
std::string Kelasku::fakta2{"ID C/C++ Warriors here"};
constexpr int Kelasku::larik_larikan[];
constexpr char Kelasku::kata_kami[][32];

int main()
{
    Kelasku k;

    std::cout << "Pesan sponsor: " << k.fakta << std::endl;
    std::cout << "Pesan sponsor: " << Kelasku::fakta2 << std::endl;

    for (int i = 0; i<sizeof(k.larik)/sizeof(int); i++)
        std::cout << k.larik[i] << " ";
    std::cout << std::endl;

    for (int i = 0; i<sizeof(Kelasku::larik_konst)/sizeof(int); i++)
        std::cout << Kelasku::larik_konst[i] << " ";
    std::cout << std::endl;

    std::cout << Kelasku::konstanku << std::endl;

    for (int i=0; i<sizeof(Kelasku::larik_larikan)/sizeof(int); i++)
        std::cout << char(Kelasku::larik_larikan[i] + '0');
    std::cout << std::endl;

    std::cout << Kelasku::kata_kami[0] << " " << Kelasku::kata_kami[1] << std::endl;
}