Hộp thoại (JOptionPanel)
public static void main(String[] args) {
int tt;
do {
try {
String str = JOptionPane.showInputDialog("Nhap so nguyen ");
int n = Integer.parseInt(str);
String mess = (n % 2 == 0 ? "So chan" : "So le");
JOptionPane.showMessageDialog(null, mess, "Ket qua", JOptionPane.INFORMATION_MESSAGE);
} catch (NumberFormatException e) {
JOptionPane.showMessageDialog(null, "Loi nhap du lieu");
}
tt = JOptionPane.showConfirmDialog(null, "Ban co muon tiep tuc ko?", "Thong bao", JOptionPane.YES_NO_OPTION);
} while (tt == 0);
}
}