Add C++ nested class example

This also reverts the nested class additions to the Java/C# 'class' example
so that the 'class' example remains identical across different language modules

Examples/java/class/example.cxx

@@ -9,7 +9,7 @@ void Shape::move(double dx, double dy) {
   y += dy;
 }
 
-int Shape::Counter::nshapes = 0;
+int Shape::nshapes = 0;
 
 double Circle::area(void) {
   return M_PI*radius*radius;

Examples/java/class/example.h

@@ -2,19 +2,17 @@
 
 class Shape {
 public:
-  struct Counter{
-		static int nshapes;
-  };
   Shape() {
-    Counter::nshapes++;
+    nshapes++;
   }
   virtual ~Shape() {
-    Counter::nshapes--;
+    nshapes--;
   };
   double  x, y;   
   void    move(double dx, double dy);
   virtual double area(void) = 0;
   virtual double perimeter(void) = 0;
+  static  int nshapes;
 };
 
 class Circle : public Shape {

Examples/java/class/runme.java

@@ -21,9 +21,9 @@ public class runme {
     Square s = new Square(10);
     System.out.println( "    Created square " + s );
     
-    // ----- Access a static member of a nested class -----
+    // ----- Access a static member -----
     
-    System.out.println( "\nA total of " + Shape.Counter.getNshapes() + " shapes were created" );
+    System.out.println( "\nA total of " + Shape.getNshapes() + " shapes were created" );
     
     // ----- Member data access -----
     
@@ -64,7 +64,7 @@ public class runme {
     c.delete();
     s.delete();
     
-    System.out.println( Shape.Counter.getNshapes() + " shapes remain" );
+    System.out.println( Shape.getNshapes() + " shapes remain" );
     System.out.println( "Goodbye" );
   }
 }