import javax.swing.JOptionPane;

public class Task1 {
    public static void main(String[] arguments) {
        var result = JOptionPane.showConfirmDialog(null,
                "Bestätigen Sie die Eingabe", "Bestätigung", JOptionPane.YES_NO_CANCEL_OPTION);

        switch (result) {
            case JOptionPane.YES_OPTION:
                JOptionPane.showMessageDialog(null, "Ja");
                break;
            case JOptionPane.NO_OPTION:
                JOptionPane.showMessageDialog(null, "Nein");
                break;
            case JOptionPane.CANCEL_OPTION:
                JOptionPane.showMessageDialog(null, "Abbrechen");
                break;
        }
    }
}