адвад

private static double calculateTax(String type, int years, int kilometers) {
    switch (type) {
        case "family":
            return 50 - (years * 5) + ((double) kilometers / 3000) * 12;
        case "heavyDuty":
            return 80 - (years * 8) + ((double) kilometers / 9000) * 14;
        case "sports":
            return 100 - (years * 9) + ((double) kilometers / 2000) * 18;
        default:
            System.out.println("Invalid car type.");
            return 0;
    }
}