some minor mods

src/lec07/glab/casting/CastObjectsDriver.java

@@ -39,7 +39,7 @@ public class CastObjectsDriver {
         //With reflection, we can see that we are NOT changing the object's type, it's still a Double, only now it's
         //With reflection, we can see that we are NOT changing the object's type, it's still a Double, only now it's
         //being stored in a superlcass reference which restricts the of methods we can call on the reference
         //being stored in a superlcass reference which restricts the of methods we can call on the reference
         //This is an automatic promotion, so the cast here is redundant
         //This is an automatic promotion, so the cast here is redundant
-        Number numMe = (Number) dubMe;
+        Number numMe =  dubMe;
         System.out.println("A Number reference pointing to same Double object:");
         System.out.println("A Number reference pointing to same Double object:");
         System.out.println(numMe.getClass().toString());
         System.out.println(numMe.getClass().toString());
         //one of the methods we can call from the Number reference
         //one of the methods we can call from the Number reference
@@ -60,7 +60,7 @@ public class CastObjectsDriver {
         System.out.println("numMe and dubMe both point to the same object in memory space: " + (numMe == dubMe));
         System.out.println("numMe and dubMe both point to the same object in memory space: " + (numMe == dubMe));
         System.out.println("%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%");
         System.out.println("%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%");
 
 
-
+        System.out.println(Double.valueOf((Double) comMe));
         //Now let's cast this to an Object
         //Now let's cast this to an Object
         //This is an automatic promotion, so the cast here is redundant
         //This is an automatic promotion, so the cast here is redundant
         Object objMe = (Object) comMe;
         Object objMe = (Object) comMe;

src/lec07/glab/casting/CastPrimitivesDriver.java

@@ -28,7 +28,7 @@ public class CastPrimitivesDriver {
 
 
 
 
         //Let's promote this to an int which is a 32-bit signed integer ranging from   -2^31 to 2^31 - 1
         //Let's promote this to an int which is a 32-bit signed integer ranging from   -2^31 to 2^31 - 1
-        int nMe = (int)sMe;
+        int nMe = sMe;
         //no problem, we don't really need all the precision, but memory is cheap, and the value stays the same.
         //no problem, we don't really need all the precision, but memory is cheap, and the value stays the same.
         //when we copy the bits, we just put those bits into an 32-bit int like so ->
         //when we copy the bits, we just put those bits into an 32-bit int like so ->
         //upcasting is automatic (no cast required) and looses no precision
         //upcasting is automatic (no cast required) and looses no precision

src/lec07/glab/recursion/RecursionDriver.java

@@ -7,7 +7,7 @@ public class RecursionDriver {
 	 */
 	 */
 	public static void main(String[] args) {
 	public static void main(String[] args) {
 
 
-		System.out.println(myFactorialRec(5));
+		System.out.println(myFactorialRec(12));
 		System.out.println(myFactorialIter(5));
 		System.out.println(myFactorialIter(5));
 
 
         testIsPalindrome("A man, a plan, a canal, Panama!");
         testIsPalindrome("A man, a plan, a canal, Panama!");