An Example of a switch Statement

#include <iostream.h>

/************************************************************
 File: switch.C
 This program demonstrates the use of a switch statement
************************************************************/

int main()
{
	int telephone_number;
	cout << "Enter Extension Number: ";
	cin >> telephone_number;
	switch (telephone_number)
	{
	  case 6279:
	  case 6127:{
			cout << "This is on the 2nd floor of CCB" << endl;
			break;
		    }
	  case 6520:{
			cout << "This is on the 3rd floor of CCB" << endl;
			break;
		    }
	  default:  {
			cout << "Invalid number \n";
			break; //not required
		    }
	}
	
	return(0);
}