How to replace specific strings with doubles?

What I'm trying to do is if the user input is Monday through Friday it charges them 1.25 and if it's Saturday or Sunday it charges them 0.50? For Example:

public static void main(String[] args) {
    Scanner inputInfo = new Scanner(System.in);
    System.out.println("Please enter the (Full Name) day of the week: ");
    String inputDay = inputInfo.nextLine();
    System.out.println("Please enter the vehicle's arrival time: ");
    Integer inputSTime = inputInfo.nextInt();
    System.out.println("Please enter it's departure time: ");
    Integer inputETime = inputInfo.nextInt();
    List<String> Week = Arrays.asList("Monday", "Tuesday", "Wednesday", "Thursday", "Friday");
    List<String> Weekend = Arrays.asList("Saturday", "Sunday");
    Double Money_1 = 1.25;
    Double Money_2 = 0.50;
    Integer halfHour_S = (inputSTime % 100);
    Integer frontHour_S = (inputSTime / 100) * 100;
    Double hourR = frontHour_S * .6;
    Integer hourFH = (int) (hourR + halfHour_S);
    Integer halfHour_E = (inputETime % 100);
    Integer frontHour_E = (inputETime / 100) * 100;
    Double hourRE = frontHour_E * .6;
    Integer hourFH_E = (int) (hourRE + halfHour_E);
    Integer d_Minutes = (hourFH_E - hourFH);
    System.out.println("Day came in: " + inputDay);
    if(inputDay == Week);
    (inputDay.replace(Week, Money_1));
    if(inputDay == Weekend);
    (inputDay.replace(Weekend, Money_2));


    System.out.println("Parking duration in minutes: " + d_Minutes + ", rate: " + inputDay);


}

output: Please enter the (Full Name) day of the week: Tuesday Please enter the vehicle's arrival time: 1600 Please enter it's departure time: 1930 Day came in: Tuesday Parking duration in minutes: 210, rate: 1.25

Process finished with exit code 0