original code

ChargeCalculator.java

-package automail;
-
-import java.util.Map;
-
-public class ChargeCalculator {
-	private static Map<Integer, Double> lastServiceFee;
-	private double markup;
-	private double unitPrice;
-	
-	private int totalItems;
-	private double billableActivity;
-	private double totalServiceCost;
-	private int[] numLookups;
-	
-	// constant variables for numLookups to increment successes at index 0 and failures at index 1
-	private final int success_index = 0;
-	private final int failure_index = 1;
-	
-	public ChargeCalculator(int numFloors, double markup, double unitPrice) {
-		this.markup = markup;
-		this.unitPrice = unitPrice;
-		
-		// initialise statistics to 0
-		this.totalItems = 0;
-		this.billableActivity = 0.0;
-		this.totalServiceCost = 0;
-		
-		this.numLookups = new int[2];
-		this.numLookups[success_index] = 0;
-		this.numLookups[failure_index] = 0;
-		
-		// initialise service fees to 0 for all floors
-		for(int i = 1; i < numFloors + 1; i++) {
-			lastServiceFee.put(i, 0.0);
-		}
-	}
-	
-	/**
-	 * Calculates the activity cost for the parameter item
-	 * Activity cost = activity units * unit price
-	 * May be altered to factor in weight or delays in the future
-	 * @param item the mail item whos activity cost is calculated
-	 * */
-	public double calculateActivityCost(MailItem item) {
-		return item.getActivityUnits() * unitPrice;
-	}
-	
-	/**
-	 * Returns the expected cost for an item using the last calculated service fee
-	 * @param item The item whos expected cost is calculated
-	 * */
-	public double calculateExpectedCost(MailItem item) {
-		double cost = calculateActivityCost(item) + lastServiceFee.get(item.getDestFloor());
-		
-		return cost * (1 + markup);
-	}
-	
-	/**
-	 * Returns the cost for an item
-	 * @param item The item whos cost is calculated
-	 * */
-	public double calculateCost(MailItem item) {		
-		return calculateActivityCost(item) + item.getServiceFee();
-	}
-	
-	
-	public double getCharge(MailItem item) {
-		return calculateCost(item) * (1 + markup);
-	}
-	
-	
-	/**
-	 * Update the last calculated service fee
-	 * @param floor the floor for which a new service fee has been looked up
-	 * @param fee the new service fee
-	 * */
-	public void updateServiceFee(int floor, double fee) {
-		if (fee > 0) {
-			lastServiceFee.replace(floor, fee);
-		}
-	}
-	
-	/**
-	 * Update numLookups with an additional successful or failed lookup
-	 * @param success True if the lookup was successful, False if failed
-	 * */
-	public void incrementLookup(Boolean success) {
-		if (success) {
-			numLookups[success_index] += 1;
-		}
-		else {
-			numLookups[failure_index] += 1;
-		}
-	}
-	
-	/**
-	 * TODO
-	 * */
-	public void updateStatistics() {
-		
-	}
-}

srcBase/.classpath

+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11">
+		<attributes>
+			<attribute name="module" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="lib" path="WifiModem.jar"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>

srcBase/.project

+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>Automail</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>

srcBase/.settings/org.eclipse.jdt.core.prefs

+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
+org.eclipse.jdt.core.compiler.compliance=11
+org.eclipse.jdt.core.compiler.debug.lineNumber=generate
+org.eclipse.jdt.core.compiler.debug.localVariable=generate
+org.eclipse.jdt.core.compiler.debug.sourceFile=generate
+org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
+org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11

srcBase/automail.properties

+# Seed
+#Seed=2020
+Seed=30006
+# Floors
+Floors=12
+# Mail_To_Create
+Mail_to_Create=200
+# Mail_Max_Weight
+Mail_Max_Weight=2000
+# The duration of receiving new mails
+Mail_Receving_Length=120
+# Robots
+Robots=3
+ChargeThreshold=0
+CommercialDisplay=false