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Describe Private, Protected And Public - The Differences And Give Examples.

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ANSWER : class Point2D{ int x; int y; public int color; protected bool pinned; public Point2D():x(0),y(0){} //default(no argument) CONSTRUCTOR }; Point2D MyPoint;

You cannot directly access private data members when they are DECLARED (implicitly) private:

MyPoint.x = 5; // Compiler will issue a compile ERROR //Nor YOY can see them: int xdim = MyPoint.x; // Compiler will issue a compile ERROR

On the other hand, you can ASSIGN and read the public data members:

MyPoint.color = 255; //no problem int col = MyPoint.color; // no problem

With protected data members you can read them but not write them:

bool isPinned = MyPoint.pinned; // no problem.

You cannot directly access private data members when they are declared (implicitly) private:

On the other hand, you can assign and read the public data members:

With protected data members you can read them but not write them:


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