update,

_resources/it114105/itp4510/Assignment/22-23/src/FoodOrder.java

@@ -0,0 +1,15 @@
+public class FoodOrder {
+	private int memberID;
+	private String foodOrder; // A, B, C, or D
+	private int priority;
+
+    //constructor	
+    public FoodOrder(int memberID, String foodOrder) {
+	.......
+
+    }
+    
+    //provide methods getter, setter, toString ....
+    
+    
+}

_resources/it114105/itp4510/Assignment/22-23/src/LinkedList.java

@@ -0,0 +1,119 @@
+class ListNode {
+
+	private Object data;
+	private ListNode next;
+
+	public ListNode(Object o) { data = o; next = null; }
+	public ListNode(Object o, ListNode nextNode)
+		{ data = o; next = nextNode; }
+
+	public Object getData() { return data; }
+	public void setData(Object o) { data = o; }
+	
+	public ListNode getNext() { return next; }
+	public void setNext(ListNode next) { this.next = next; }
+
+
+} // class ListNode
+
+class EmptyListException extends RuntimeException {
+	public EmptyListException ()
+		{ super("List is empty"); }
+} // class EmptyListException
+
+public class LinkedList {
+
+	private ListNode head;
+	private ListNode tail;
+
+	private int length;		// the length of the list
+
+	public LinkedList() {
+		head = tail = null;
+		length = 0;
+	}
+
+	public boolean isEmpty() { return head == null; }
+
+	public void addToHead(Object item) {
+		if (isEmpty())
+			head = tail = new ListNode(item);
+		else
+			head = new ListNode(item, head);
+		length++;
+	}
+
+	public void addToTail(Object item) {
+		if (isEmpty())
+			head = tail = new ListNode(item);
+		else {
+			tail.setNext(new ListNode(item));
+			tail = tail.getNext();
+		}
+		length++;
+	}
+
+	public Object removeFromHead() throws EmptyListException {
+		Object item = null;
+		if (isEmpty())
+			throw new EmptyListException();
+		item = head.getData();
+		if (head == tail)
+			head = tail = null;
+		else
+			head = head.getNext();
+		length--;
+		return item;
+	}
+
+	public Object removeFromTail() throws EmptyListException {
+		Object item = null;
+		if (isEmpty())
+			throw new EmptyListException();
+		item = tail.getData();
+		if (head == tail)
+			head = tail = null;
+		else {
+			ListNode current = head;
+			while (current.getNext() != tail)
+				current = current.getNext();
+			tail = current;
+			current.setNext(null);
+		}
+		length--;
+		return item;
+	}
+	
+	public int count() {
+		return length;
+	}
+	
+	//students need to revise toString method
+	public String toString() {
+		String str = "[ ";
+		ListNode current = head;
+		while (current != null) {
+			str = str + current.getData() + " ";
+			current = current.getNext();
+		}
+		return str + " ]";
+	}
+
+
+
+	//to be completed ...
+	// Method remove(int) is to remove a ListNode from the LinkedList with a specific Member ID
+	public void remove(int targetID) throws EmptyListException {
+		.........
+
+	}
+
+	//to be completed ...
+    // Method add(Object) is to insert a new ListNode into the LinkedList in a correct position
+	public void add(Object item) {
+		
+		.........
+	}
+
+
+} // class LinkedList

_resources/it114105/itp4510/Assignment/22-23/src/OrderSystem.java

@@ -0,0 +1,25 @@
+import ............
+
+public class OrderSystem {
+	private static Scanner sc;
+	private static LinkedList orders;
+	private static int nextGuestID = 9000;
+	
+    public static void main(String[] args) {
+	............    	
+
+    }
+    
+    public static void inputOrder() throws ............ {
+    	
+		............	   	
+    }
+    
+    public static void adminFunc() ............ {
+     	
+		............
+    		 	
+    }
+    		
+    
+}