Core Java2 Notes (5)# Java - 爪哇娇娃
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16. Protected features in Java are visible to all subclasses as well as all
other classes in the same package.
This is slightly different from the C++ meaning of protected, and it makes t
he notion of protected in Java
even less safe than in C++
In C++, there is no cosmic root class. Of course, in C++, every pointer can
be converted to a void* pointer.
Java programmers oftern use Object references for generic programming, to i
mplement data structures and
algorithms that support a variety of dat
other classes in the same package.
This is slightly different from the C++ meaning of protected, and it makes t
he notion of protected in Java
even less safe than in C++
In C++, there is no cosmic root class. Of course, in C++, every pointer can
be converted to a void* pointer.
Java programmers oftern use Object references for generic programming, to i
mplement data structures and
algorithms that support a variety of dat