lab 9 close #7

lab/lab9/Question4/Start.java

@@ -0,0 +1,17 @@
+/**
+ * Answer to questions.
+ *
+ * - Q4: What happends if you try to use am enhanced for loop?
+ *
+ * - A: The original doors will not be replace. When you use for (Door door :
+ * doors), JVM will copy the value to door (or copy the address). If you set
+ * door = new Door(), the new door will be assigned to that copied object,
+ * istead of the object in array.
+ *
+ */
+public class Start {
+	public static void main(String[] args) {
+		Door.testDoor();
+		Car.testCar();
+	}
+}