An example of function name overloading within a C++ class. In this program the constructor is overloaded as well as one of the methods to illustrate what can be done in C++ programming language.

[code=’cpp’]
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#include

class many_names {
int length;
int width;
public:
many_names(void); // Constructors
many_names(int len);
many_names(int len, int wid);
void display(void); // Display functions
void display(int one);
void display(int one, int two);
void display(float number);
};

many_names::many_names(void)
{
length = 8;
width = 8;
}

many_names::many_names(int len)
{
length = len;
width = 8;
}

many_names::many_names(int len, int wid)
{
length = len;
width = wid;
}

void many_names::display(void)
{
cout << "From void display function, area = " << length * width << "\n"; } void many_names::display(int one) { cout << "From int display function, area = " << length * width << "\n"; } void many_names::display(int one, int two) { cout << "From two int display function, area = " << length * width << "\n"; } void many_names::display(float number) { cout << "From float display function, area = " << length * width << "\n"; } main() { many_names small, medium(10), large(12, 15); int gross = 144; float pi = 3.1415, payroll = 12.50; small.display(); small.display(100); small.display(gross,100); small.display(payroll); medium.display(); large.display(pi); } // Result of execution // From void display function, area = 64 // From int display function, area = 64 // From two int display function, area = 64 // From float display function, area = 64 // From void display function, area = 80 // From float display function, area = 180 [/code]

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