Objective: The objective of this lab is to get familiar with the syntax of the Java...

// do comment if any problem arises

//code

import java.util.Scanner;

class charge {

    public double get_charge(int hours) {

        // if car is parked for 10 hours

        if (hours == 24)

            return 10.00;

        // initail charge of 2$

        double charge = 2.00;

        // if car has been parked for greater than 3 hours

        if (hours > 3)

            charge += (hours - 3) * 0.5;

        return charge;

    }

    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);

        double total = 0;

        // create a temporary object

        charge temp = new charge();

        while (true) {

            // read number of hours from user

            System.out.print("Enter number of hours (a negaitve to quit): ");

            int hours = sc.nextInt();

            // if user enters -ve break

            if (hours < 0)

                break;

            // calculate charge for given hours and display

            double current_charge = temp.get_charge(hours);

            total += current_charge;

            System.out.println("Current charge: $" + current_charge + ", Total reciepts: $" + total);

        }

    }

}

Output: