update,

it114105/itp3914/Lab12/Ex1/Ex1.java

@@ -0,0 +1,17 @@
+public class Ex1 {
+    public static void main(String [] args) {
+		Invoice inv = new Invoice("A123", 4);
+		double total=0;
+ 
+		inv.addItem("U-231", 34.5, 10);
+		inv.addItem("J-994", 124.5, 5);
+		inv.addItem("K-674", 4.5, 100);
+ 
+		for (int i=0; i<inv.getItemCount(); i++) {
+			System.out.println(inv.getItem(i));
+			total += inv.getItem(i).getItemTotal();
+		}
+		System.out.println("Invoice Total = " + total);
+	}
+
+}