HW$1$ Basics and Control Statements $(100$ pts$.)$:

The Safe Keeping Parking Garage determines the price it charges for parking based on the

day of the week and the time spent parked. To avoid bleeding its customers dry, the garage

has maximum fees it will charge. Here are the rules the company uses to calculate its prices:

Day of Week

Rate for $15$

Minutes or

Portion Thereof

Maximum

Fee

Charged

Monday $-$ Friday $1\mathrm{.}2515\mathrm{.}00$

Saturday & Sunday $0\mathrm{.}5015\mathrm{.}00$

To help you understand the business process, the garage manager created the following

examples to illustrate some parking situations:

Day of

Week

Vehicle

Arrives

at

Vehicle

Leaves

at

Arrival

Minutes

Depart

Minutes

Duration

in Minutes

$15$

Minute

Intervals

Rate

Charge

Based on

Rate

Max

Charge

Actual

Charge

M $-$ F $745100046560013591\mathrm{.}2511\mathrm{.}251511\mathrm{.}25$

M $-$ F $7001200420720300201\mathrm{.}25251515$

M $-$ F $11301600690960270181\mathrm{.}2522\mathrm{.}51515$

M $-$ F $1305150078590011581\mathrm{.}25101510$

M $-$ F $142015008609004031\mathrm{.}253\mathrm{.}75153\mathrm{.}75$

M $-$ F $75017154701035565381\mathrm{.}2547\mathrm{.}51515$

M $-$ F $17301900105011409061\mathrm{.}257\mathrm{.}5157\mathrm{.}5$

M $-$ F $17551905107511457051\mathrm{.}256\mathrm{.}25156\mathrm{.}25$

S & S $140019208401160320220\mathrm{.}5111511$

S & S $9401425580865285190\mathrm{.}59\mathrm{.}5159\mathrm{.}5$

Notice that the arrival in minutes is the number of hours in the arrival time multiplied by $60$

plus the number of minutes. For instance, in the first row the $$Arrival Minutes$$ is calculated

as $7$ hours times $60$ giving $420$ plus $45$ minutes resulting in a total of $465$ minutes. Likewise,

the $$Depart Minutes$$ is calculated as $10$ hours times $60$ giving $600$ minutes plus $0$ minutes

resulting in total of $600$ minutes. How might you use integer division and modulus operations

to separate hours and minutes from an int?

The table above represents time in a $24$ hour format using integers. This makes calculating

duration much easier. As anyone who has used a parking garage knows, the number of $15$

minute intervals counts even a minute over as a new interval. For instance, a duration of $60$

minutes produces $415$ minute intervals, and a duration of $61$ minutes produces $5$ intervals.

In the sixth row above, a duration of $565$ minutes is $3815$ minute intervals $37$ full intervals

plus $10$ minutes of the next one.

$1$

Since negative durations cannot exist, display an error message if the user enters an arrival

time that exceeds the departure time.

Develop a set of test plan results that shows that your program produces correct results.

Write a Java program to calculate the ampunt charged for parking in the garage over a

specified interval on any given day. The program must implements the requirements

described above. It will use an object of either the Scanner class or the BufferedReader class

to obtain input.

The program should request information from the user in the following format:

Please enter the day of the week : mon

Please enter the vehicle$$s arrival time : $745$

Please enter its departure time : $1000$

The program will use printf with the appropriate format specifiers to display the output

which should look like this:

Day of week: Mon

Parking duration in minutes: $135,$ rate: $$1\mathrm{.}25$

Amount charged: $$11\mathrm{.}25$

Be sure to use the correct data type for the variables that will store the user input.

Write an efficient algorithm: try to obtain the correct results using the fewest possible

number of steps.

You will also develop a test plan that shows what values you tested and whether the program

correctly calculated the cost of parking.

You will upload your test file and your java file compressed together in a zip or $7$z file.

Be sure to use the assignment naming convention for your compressed file, for instance,

DAngelo HW$1.$zip.