#include <xtd/xtd>

using namespace xtd;

int main() {
  console::background_color(console_color::blue);
  console::foreground_color(console_color::white);
  console::write_line("Hello, World!");
}

#include <xtd/xtd>

using namespace xtd::forms;

class main_form : public form {
public:
  main_form() {
    text("Hello world (message_box)");

    button1.location({10, 10});
    button1.parent(*this);
    button1.text("&Click me");
    button1.click += [] {
      message_box::show("Hello, World!");
    };
  }
  
private:
  button button1;
};

int main() {
  application::run(main_form());
}

#include <xtd/xtd>
#include <string>

using namespace std;
using namespace xtd::tunit;

namespace unit_tests {
  class test_class_(hello_world_test) {
  public:
    void test_method_(create_string_from_literal) {
      string s = "Hello, World!";
      valid::are_equal(13, s.size());
      assert::are_equal("Hello, World!", s);
    }
    
    void test_method_(create_string_from_chars) {
      string s = {'H', 'e', 'l', 'l', 'o', ',', ' ', 'W', 'o', 'r', 'l', 'd', '!'};
      valid::are_equal(13, s.size());
      string_assert::starts_with("Hello,", s);
      string_assert::ends_with(" World!", s);
    }
  };
}

int main() {
  return console_unit_test().run();
}