示例#1
0
 public static void main(String[] av) {
   System.out.println("OA's version of getAttr returns: " + new OA().getAttr());
   System.out.println("OB's version of getAttr returns: " + new OB().getAttr());
   // Declared as OA, instantiated as OB, so gets OB's version of things.
   OA c = new OB();
   System.out.println("C's version of getAttr returns: " + c.getAttr());
 }
示例#2
0
 int getAttr() {
   System.out.println("In OB.getAttr");
   super.getAttr(); // Just to show flow of control
   return attr;
 }