I changed all of Dates field variables (except mYear) from int to byte to save memory.

updated comments

Order Processor/src/com/TwentyCodes/java/OrderProcessor/Date.java

@@ -12,11 +12,11 @@ package com.TwentyCodes.java.OrderProcessor;
  */
 public class Date implements Comparable<Date>{
 	
-	private int mHour;
-	private int mMinute;
-	private int mSecond;
-	private int mMonth;
-	private int mDay;
+	private byte mHour;
+	private byte mMinute;
+	private byte mSecond;
+	private byte mMonth;
+	private byte mDay;
 	private int mYear;
 
 	/**
@@ -32,14 +32,14 @@ public class Date implements Comparable<Date>{
 		String[] time = parts[1].split(":");
 		try {
 			this.mYear = Integer.parseInt(removeFirstChar(date[0]));
-			this.mDay  = Integer.parseInt(date[2]);
-			this.mMonth = Integer.parseInt(date[1]);
-			this.mHour = Integer.parseInt(time[0]);
-			this.mMinute = Integer.parseInt(time[1]);
-			this.mSecond = Integer.parseInt(removeLastChar(time[2]));
+			this.mDay  = Byte.parseByte(date[2]);
+			this.mMonth = Byte.parseByte(date[1]);
+			this.mHour = Byte.parseByte(time[0]);
+			this.mMinute = Byte.parseByte(time[1]);
+			this.mSecond = Byte.parseByte(removeLastChar(time[2]));
 		} catch (NumberFormatException e) {
 			e.printStackTrace();
-			throw new InvalidDateFormatException();
+			throw new InvalidDateFormatException(newDate);
 		}
 	}
 	
@@ -99,26 +99,56 @@ public class Date implements Comparable<Date>{
 						
 	}
 
-	private int getSecond() {
+	/**
+	 * getter for second
+	 * @return seconds
+	 * @author ricky barrette
+	 */
+	private byte getSecond() {
 		return this.mSecond;
 	}
 
-	private int getMinute() {
+	/**
+	 * getter for minutes
+	 * @return minutes
+	 * @author ricky barrette
+	 */
+	private byte getMinute() {
 		return this.mMinute;
 	}
 
-	private int getHour() {
+	/**
+	 * getter for hours
+	 * @return hours
+	 * @author ricky barrette
+	 */
+	private byte getHour() {
 		return this.mHour;
 	}
 
-	private int getDay() {
+	/**
+	 * getter for day
+	 * @return day
+	 * @author ricky barrette
+	 */
+	private byte getDay() {
 		return this.mDay;
 	}
 
-	private int getMonth() {
+	/**
+	 * getter for month
+	 * @return month
+	 * @author ricky barrette
+	 */
+	private byte getMonth() {
 		return this.mMonth;
 	}
 
+	/**
+	 * getter for year
+	 * @return year
+	 * @author ricky barrette
+	 */
 	private int getYear() {
 		return this.mYear;
 	}

Order Processor/src/com/TwentyCodes/java/OrderProcessor/Order.java

@@ -86,14 +86,13 @@ public class Order implements Comparable<Order>{
 	}
 	
 	/**
-	 * Compares orders by item name
+	 * Compares orders by orders creation date
 	 * (non-Javadoc)
 	 * @see java.lang.Comparable#compareTo(java.lang.Object)
 	 * @author ricky barrette
 	 */
 	@Override
 	public int compareTo(Order o) {
-//		return this.mItemName.compareTo(o.getItemName());
 		return this.mOrderCreationDate.compareTo(o.getOrderCreationDate());
 	}