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Thread: Java coding for writing telephone bill calculator program

  1. #1
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    Default Java coding for writing telephone bill calculator program

    ou were hired or a programmer by a telephone company employs metering scheme in computing the telephone bill. the metering scheme is as follow

    call made on weekday between 6:00AM to 6:00PM are charged at 2.50 dollar per minute charged at are charged weekday are charged a discount rate of 2.00 dollars per minute. calls made anytime on weekend are charged a weekend rate of 1.50 dollar per minute. your job is to write a program that will ask the user to enter the ff. information: an integer representing the day so on an integer representing (in 24 hours format) the call started; and an integer representing the time the call ended

    please guys if you think the rate are ridiculous please did is not real life rate just a java problem and not real please here my code but i do not how to put the 2.50 discount rate im really lose please kindly help me where to put this codes please could kindly help me to understand this im confused and also please could also tweak or could please kindly finish what is missing in my code and this not and assignments or homework its just a SEAT-WORK i did im really confused at it



    import java.util.Scanner;
     
     class week {
     
        public static double weekendRate = 1.5;
        public static double weekRate = 2;
     
        public static void main(String[] args) {
     
     
            int day;
            int startHour;
            int startMinute;
            int endHour;
            int endMinute;
            int begin;
            int end;
            int duration;
            double bill;
     
            Scanner in = new Scanner(System.in);
     
            System.out.print("What is the weekday?");
            day = in.nextInt();
     
     
            System.out.print("What is the starting time? Hour:");
            startHour = in.nextInt();
            System.out.print(" Minute: ");
            startMinute = in.nextInt();
     
            System.out.print("What is the ending time? Hour:");
            endHour = in.nextInt();
            System.out.print("Minute: ");
            endMinute = in.nextInt();
     
            begin = startHour * 60 + startMinute;
            end = endHour * 60 + endMinute;
            duration = end - begin;
     
     
            if (day == 6 || day == 7) {
                 bill = duration * weekendRate;
     
            } else {
     
            bill = duration * weekRate;
     
            System.out.println("Duration: " + duration + " minutes");
            System.out.println("Bill: " + bill + " dollar ");
        }
     }
    }
    Last edited by Freaky Chris; September 8th, 2009 at 05:44 AM. Reason: Added code tags


  2. #2
    Senile Half-Wit Freaky Chris's Avatar
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    Default Re: kindly help me with this miss java problem

    I cannot make sense of this, it doesn't read logically at all. I mean the problem not the code btw.

    Chris
    chris[at]javaprogrammingforums[dot]com

    Prifysgol Bangor University, North Wales

  3. #3
    Super Moderator helloworld922's Avatar
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    Default Re: kindly help me with this miss java problem

    I think this is what he meant:

    calls between 6:00am and 6:00pm on weekdays are $2.50/min
    other calls on weekdays are $2.00/min
    calls on weekends are $1.50/min

    the program needs to ask for the day, the start time of the call, and the end tome of the call, and compute how much the call should be charged.

    Personally, I wouldn't use integers to represent which day of the week it is. It's not the most user friendly method, and can get quite confusing to program with, especially on team projects.

    Here's what I'd do for representing the day:
    public static enum DayOfWeek {
    		MONDAY, TUESDAY, WEDNESDAY, THURSDAY, FRIDAY, SATURDAY, SUNDAY;
    		@Override
    		public String toString()
    		{
    			if (this == MONDAY)
    			{
    				return "Monday";
    			}
    			else if (this == TUESDAY)
    			{
    				return "Tuesday";
    			}
    			else if (this == WEDNESDAY)
    			{
    				return "Wednesday";
    			}
    			else if (this == THURSDAY)
    			{
    				return "Thursday";
    			}
    			else if (this == FRIDAY)
    			{
    				return "Friday";
    			}
    			else if (this == SATURDAY)
    			{
    				return "Saturday";
    			}
    			else
    			{
    				return "Sunday";
    			}
    		}
     
    		public boolean isWeekend()
    		{
    			if (this != SATURDAY && this != SUNDAY)
    			{
    				return false;
    			}
    			else
    			{
    				return true;
    			}
    		}
    	}

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