Page 102 - DCAP404 _Object Oriented Programming

Unit 5: Static Members

{ Notes
cout << count << “\n”;
}
main()
{
cout << “ Number of objects created before=”;
counter::disp(); //Calling function disp() belonging to class counter

counter cntl, cnt2, cnt3, cnt4, cnt5;
cout << “ Number of objects created recently=”;
counter::disp();
getche();
}
You should get the following output on running the program.
Number of objects created before=0

Number of objects created recently=5
In defining static functions you should take some precautions. A static member functions cannot
be a virtual function.

!
Caution A static or non-static member function cannot have the same name and same
arguments type.

Self Assessment

Fill in the blanks:
1. The …………………………….. should be created and initialized before the main function
control block begins.

2. Class members can be declared using the ……………………. specifier static in the class
member list.
3. Only one copy of the static member is shared by all …………………….. of a class in a
program.
4. When you declare an object of a class having a static member, the static member is not part
of the……………………... .
5. A static member function does not have a ……………………. pointer.

5.2 The Const Keyword

The keyword, const (for constant), precedes the data type of a variable.
Syntax

const <data type> <name of variable> = <value>;

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