// ~ delegate void Kieu(object? sender, EventArgs args)
public void TinhBinhPhuong(object sender, EventArgs e)
{
DuLieuNhap duLieuNhap = (DuLieuNhap)e;
int i = duLieuNhap.Data;
WriteLine($"Binh phuong cua {i} la {i * i}");
}
/*
* Publisher -> class -> Phát sự kiện
* Subscriber -> class -> Nhận sự kiện
*/
static void Main(string[] args)
{
CancelKeyPress += (sender, e) => {
WriteLine();
WriteLine("Thoat chuong trinh");
};
// Publisher
UserInput userInput = new UserInput();
userInput.suKienNhapSo += (sender, e) => {
DuLieuNhap duLieuNhap = (DuLieuNhap)e;
WriteLine("Ban vua nhap so: " + duLieuNhap.Data);
};
// Subscriber
TinhCan tinhCan = new TinhCan();
tinhCan.Sub(userInput);
BinhPhuong binhPhuong = new BinhPhuong();
binhPhuong.Sub(userInput);
userInput.Input();
}
// ~ delegate void Kieu(object? sender, EventArgs args)
public void Can(object sender, EventArgs e)
{
DuLieuNhap duLieuNhap = (DuLieuNhap)e;
int i = duLieuNhap.Data;
WriteLine($"Can bac hai cua {i} la {Math.Sqrt(i)}");
}