Virtual functions ensure that the correct function is called for an object, regardless of the expression used to make the function call. Suppose a base class contains a function declared as virtual and a derived class defines the same function. The function from the derived class is invoked for objects of the derived class, even if it is called using a pointer or reference to the base class.
Now we may need to add a line, and I was wondering how much it would cost for the additional phone? I know that when adding a line its an additional $10 to the plan, but are there any discounts on the phones for the new line, or will it need to be paid for at its full retail price?ow we may need to add a line, and I was wondering how much it would cost for the additional phone? I know that when adding a line its an additional $10 to the plan, but are there any discounts on the phones for the new line, or will it need to be paid for at its full retail price?
1 Family plans are a great way to have multiple phone for you, your spouse and your children without having to pay as much per phone. 2  Family plans from Verizon start at $99.99 for two phones that share 700 minutes and have unlimited texting. 3  Each additional line will cost $10. If you would like to add 3g service (wireless internet) to your plan your monthly price will increase. 2  Some companies such as Verizon just charge an additional monthly fee for this. 3  If you only want 150 MB of service, it will cost an additional $15 per month. 4  If you want unlimited, it will jump to $29.99 more per month.