AlternativeTransit.java

/*
 * AlternativeTrip.java
 * Date: 10/17/13
 * Author: Benjamin Campbell <bc223913@umconnect.umt.edu>
 * Abstract: A simple application that allows users to submit travel
 * mechanisms that implement the BUsWalkBike class.
 */

package com.benjica.csci135.hw4;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.Scanner;

import com.benjica.csci135.hw4.BusWalkBike.TravelMode;

public class AlternativeTrip {

  public static void main(String[] args) {
		// Initialize utility classes
		ArrayList<BusWalkBike> list = new ArrayList<BusWalkBike>();
		Scanner scan = new Scanner(System.in);
		SimpleDateFormat df = new SimpleDateFormat("mm/dd/yyyy");		
		
		// Start iterating over user input for creating new routes
		do {
			
			// Reinitialize key variables for testing
			TravelMode mode = null;
			Date date = null;
			
			// Determine mode of transportation and reiterate until valid data.
			do {
				
				// Prompt user for input
				System.out.println("What mode of transportation did you use[bus|walk|bike]?");
				
				// Iterate over response
				switch(scan.nextLine().toLowerCase()) {
					case "bus": // Set mode to BUS
						mode = TravelMode.BUS;
						break;
					case "walk": // set mode to WALK
						mode = TravelMode.WALK;
						break;
					case "bike": // set mode to BIKE
						mode = TravelMode.BIKE;
						break;
					default:
						// Let user know the input was not reconized as valid
						System.out.println("Your mode was unreconized please enter bus, walk, or bike.");
						break;
				}
				
				// Test to see if mode was set and if not resubmit
			} while (!(mode != null));
			
			// Input route name
			System.out.println("Please enter your route name:");
			String name = scan.nextLine();
			
			// Input distance
			System.out.println("How far did you travel in miles?");
			float distance = scan.nextFloat();
			
			// Input duration
			System.out.println("How long did your route take in hours? (0.0)");
			float duration = scan.nextFloat();
			
			// Input date
			System.out.println("Please enter the date of your route.[mm/dd/yyyy]");
			String dateInput = scan.next();
			
			//  Try to parse date
			try {
				date = df.parse(dateInput);
			} catch (ParseException e) {
				// TODO Reiterate over input if bad date is found
				e.printStackTrace();
			}
			
			// Add a new BusWakBike to list
			list.add(new BusWalkBike(mode, name, distance, duration, date));
			System.out.println("Route added!\n\n");
		
			// Prompt if user has more data
			System.out.println("Would you like to enter another entry? [Yn]");
		
			// test to add another route
		} while (scan.next().toLowerCase().charAt(0) != 'n');
		
		// Close of resources
		scan.close();
		
		// Iterate over list
		for( BusWalkBike bwb : list) {
			// Printout overview
			System.out.println(bwb.toString());
		}

	}

}

BusWalkBike.java

/*
 * File: BusWalkBike.java
 * Date: 10/17/13
 * Author: Benjamin Campbell <bc223913@umconnect.umt.edu>
 * Comments: BusWalkBike class abstraction.
 * 
 */
package com.benjica.csci135.hw4;


import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Formatter;

public class BusWalkBike {
  
	// Create constants for magic numbers
	private final double GAS_SAVED_COEFFICENT = 0.437;
	
	/**
	 * A simple enumeration to differentiate different modes of transportation
	 * @author benjic
	 *
	 */
	public enum TravelMode {
		WALK,
		BIKE,
		BUS
	}
	
	// Create properties for the class as specified by Micheal Cassesn
	private TravelMode mMode;
	private String mRoute;
	private float mDistanceTraveled;
	private float mDuration;
	private Date mDate;
	
	// A constructor that takes values as specified by Micheal Cassens
	public BusWalkBike(TravelMode mode, String routeName, float distance, float duration, Date when ) {
		mMode = mode;
		mRoute = routeName;
		mDistanceTraveled = distance;
		mDuration = duration;
		mDate = when;
	}
	
	/**
	 * calculates the amount of gas saved by taking this alternative route
	 * @return a double representing the number of gallons saved
	 */
	public double gasSaved() {
		return mDistanceTraveled * GAS_SAVED_COEFFICENT;
	}
	
	/**
	 * A string value of the class 
	 */
	public String toString() {
		StringBuilder sb = new StringBuilder();
		Formatter fmt = new Formatter(sb);
		SimpleDateFormat dateFMT = new SimpleDateFormat("mm/dd/yyyy");
		
		fmt.format("You used the %s mode on %s using the %s route for a distance of %.2f, which took %f.2 hours, which saved %.3f gallons of gas.",
				mMode,
				dateFMT.format(mDate),
				mRoute,
				mDistanceTraveled,
				mDuration,
				gasSaved()
				);
		
		fmt.close();
		
		return sb.toString();
	}

	// All the getters and setters as prescribed
	public TravelMode getMode() {
		return mMode;
	}

	public void setMode(TravelMode mode) {
		this.mMode = mode;
	}

	public String getRoute() {
		return mRoute;
	}

	public void setRoute(String route) {
		this.mRoute = route;
	}

	public float getDistanceTraveled() {
		return mDistanceTraveled;
	}

	public void setDistanceTraveled(float distanceTraveled) {
		this.mDistanceTraveled = distanceTraveled;
	}

	public float getDuration() {
		return mDuration;
	}

	public void setDuration(float duration) {
		this.mDuration = duration;
	}

	public Date getDate() {
		return mDate;
	}

	public void setDate(Date date) {
		this.mDate = date;
	}
}