class CruiseControl {

    private double targetSpeedKmh;

    void setPreset(int speedPreset) { 
        if (speedPreset == 2) {
            setTargetSpeedKmh(16944); 
        } else if (speedPreset == 1) {
            setTargetSpeedKmh(7667);
        } else if (speedPreset == 0) {
            setTargetSpeedKmh(0);
        }
    }

    void setTargetSpeedKmh(double speed) { 
        targetSpeedKmh = speed;
    } 
}