CSCI 1110 Assignment 2: Car Rental with Refill and Trip Comparison
CSCI 1110: Assignment 2
Due: 2:00 pm, Monday, February 27, 2023
The purpose of this assignment is to reinforce your understanding of object-based programming and to problem-solve using objects, classes, and nested loops. For this problem you will be provided with sample tests in Codio. All input is done via the console and all output is to be done to the console as well. You must submit your assignment via Codio, and you can test it by submitting your code. Note: for this assign- ment you are expected to install and use an IDE (other than Codio) to develop your code. Please see How-To videos in the How-To Tutorial Section of our Brightspace page on how to install an IDE. This assignment is divided into two problems, where each problem subsumes the previous one. Hence, if you complete Problem 2, you will have also completed Problem 1.
Problem 1: Car Rental with Refill
There is a car rental company that would like to update their system with a new feature that can check if current fuel level is sufficient for the customer to drive to the destination and keep track of the cars if they need to be refilled after several trips. We read the instructions from the standard input (console/key- board). The program will start from the main method in the Main.java file. Each object from the class CarModel is supposed to represent a certain car model with the given name, fuel economy, and tank capacity. Each object from the class Car is an instance of a car from a given model and with a certain plate number. The cars can go on a trip, and they will consume some fuel based on the length of the trip and the fuel economy of their models. Cars can be refilled after they run out of fuel.
Input
As shown in the following examples, each line of input is a command with multiple space-separated to- kens:
- If the line starts with “MODEL,” then it is defining a new car model, and it will be followed by the model name (comprised of English characters or digits with no spaces in between), fuel economy (floating point value), and tank capacity (floating point value).
- If the line starts with “CAR,” then it defines an instance of a car, and it will be followed by the model name and the plate number (plate number is always a positive integer smaller than 999999).
- If the line starts with “TRIP,” then it will be followed by a plate number and given distance in kilometers. In this case, the car will burn some gas and the program should output whether the trip was successful (see the output sample for details).
- If the line starts with “REFILL,” then it will be followed by a plate number. In this case the fuel tank of the corresponding car should be refilled to be full.
- If “FINISH” is written on a line, it signals the end of the input.
- You can assume that the maximum number of commands is 100. This can help you in creating appropriate arrays (you can also use ArrayLists to handle a case where you do not know the size of an array a priori).
Examples
MODEL Camry 6.5 58
Trip completed successfully for #1111
MODEL Civic 7.5 52 CAR Camry 1111 CAR Camry 2222 CAR Civic 3333 CAR Civic 4444 TRIP 1111 350 TRIP 2222 350 TRIP 3333 350 TRIP 4444 350 TRIP 1111 350 TRIP 2222 350 TRIP 3333 350 TRIP 4444 350 FINISH
Trip completed successfully for #2222
Trip completed successfully for #3333
Trip completed successfully for #4444
Trip completed successfully for #1111
Trip completed successfully for #2222
Not enough fuel for #3333
Not enough fuel for #4444
Here is a different example with the use of REFILL command.
Input Output | |
MODEL X5 10 68 CAR X5 787878 TRIP 787878 500 TRIP 787878 500 TRIP 787878 10 REFILL 787878 TRIP 787878 500 FINISH | Trip completed successfully for #787878 Not enough fuel for #787878 Not enough fuel for #787878 Trip completed successfully for #787878 |
Processing
Your program should be able to keep track of the trips to see if the trip for the car is successful or not. Assume every car has a full tank of fuel at the beginning of its first trip. Fuel consumption is calculated by
???????? × ???? ???????. 100.0
Apart from keeping track of the trips, your program should also have a refill function with the following assumptions.
- Your program should accommodate the input with some leading spaces and following spaces if the inputs have some extra spaces.
- You can assume that we will not have multiple “MODEL” commands with the same model name. Also, we will not have multiple “CAR” commands with the same plate number.
- You can assume that the input is always in the correct format. Also, there are no “TRIP” or “RE- FILL” commands where the plate number is not defined before. Also, there is no “CAR” command where its model name is not defined before.
- Input starting with “REFILL” means the gas tank of the corresponding car should be refilled to be full.
- The commands are run line-by-line so the order of the input (and output) matters.
- You are allowed to create new classes, use the given classes, and modify the given classes. Your
final main() function should be defined within the class Main.
Output
If the current fuel level for the car with plate number is enough for a trip, it will output the trip completed successfully for the car with corresponding plate number; otherwise, print out not enough fuel for the car with corresponding plate number. All output should be to the console, and each line is terminated by a newline. The output format is shown in the above examples.
Problem 2: Car Rental with Trip Comparison
Extend your program from Problem 1 to handle one more change. We build on Problem 1 and add the following commands to the set of possible commands.
Input
Based on the input of Problem 1, there is one additional function that we need to cover. If an input line starts with “LONGTRIPS,” then it will be followed by a plate number and a distance in kilometers (floating point).
Processing
Your program should perform the same task as stated in Problem 1. In addition, in the case of input line starting with “LONGTRIPS,” you will need to output the number of trips that were made successfully by the given car and were equal or longer than the given distance. See the example output for details.
Output
The output format is shown in the following examples.
Examples
MODEL Camry 6.5 58
Trip completed successfully for #1111
MODEL Civic 7.5 52 CAR Camry 1111 CAR Civic 4444 TRIP 1111 50
TRIP 4444 50
TRIP 1111 350
TRIP 4444 350
TRIP 1111 350
TRIP 4444 350
LONGTRIPS 1111 300
LONGTRIPS 4444 300
FINISH
Trip completed successfully for #4444
Trip completed successfully for #1111
Trip completed successfully for #4444
Trip completed successfully for #1111
Not enough fuel for #4444
#1111 made 2 trips longer than 300
#4444 made 1 trips longer than 300
What to Hand In
This assignment must be submitted in Codio via the Brightspace page.
