Question

Given three int variables that have been declared and given values, areaCode, exchange, and lastFour, write a String expression whose value is the String equivalent of each these variables joined by a single hyphen (-) So if areaCode, exchange, and lastFour, had the values 800, 555, and 1212, the expression's value would be "800-555-1212". Alternatively, if areaCode, exchange, and lastFour, had the values 212, 867 and 5309 the expression's value would be "212-867-5309".

Answer 1

The program to this question can be given as:

Program:

#include <iostream> //header file.

using namespace std; //using namespace

int main() //main method

{

int areaCode,exchange,lastFour; //define variable.

areaCode=800; //assign value.

exchange=555; //assign value.

lastFour=1212; //assign value.

cout<<areaCode<<"-"<<exchange<<"-"<<lastFour; //print value.

cout<<endl; //change values of variable.

areaCode=212; //assign value

exchange=867; //assign value

lastFour=5309; //assign value

cout<<areaCode<<"-"<<exchange<<"-"<<lastFour; //print value.

return 0;

}

Output

800-555-1212

212-867-5309

Step-by-step explanation:

• In the above c++ program firstly we include the header file. Then we define the Main method in the main method we define three integer variable that is "areaCode, exchange, and lastFour" and assign a value that is "800, 555, and 1212".
• Then we print the values of the variable. To print values we use the hyphen "-" in the middle of the variables and print values.
• Now we assign a different value to this variable that is "212, 867 and 5309" and to print this variable value we use the hyphen in like above.