Help with syntax

I wanna start out by saying i'm a student, hello to everyone and this is my first post.

I have an assignment due and i am having trouble completing the code to get a running program.
This is as far as i have gotten in the assignment and i need a bit of help to complete my project. i have exhausted all my knowledge and resources so if someone could jump in and help me or finish the could for me i would be greatful.
OBJECTIVE:

Prompt the user for 2 numbers, assign the inputs to 2 different variables

Ask the user which mathematical function they would like to perform on the 2 numbers (1=Add; 2=Subtract; 3=Multiply; 4=Divide)

Display the answer to the user AND THEN prompt the user again for the 2 numbers. Continue to prompt the user until they enter the number 0 for either input (0 is the sentinel value which will end the program).

CURRENT SYNTAX

string sFirstNumber;
string sSecondNumber;
Int16 iFirstNumber;
Int16 iSecondNumber;
Int16 iMultiply = (iFirstNumber *= iSecondNumber);
Int16 iAddition = (iFirstNumber += iSecondNumber);
Int16 iSubtraction = (iFirstNumber -= iSecondNumber);
Int16 iDivide = (iFirstNumber /= iSecondNumber);
string sCharactor;
Console.WriteLine("Please Enter 2 Numbers");
sFirstNumber = Console.ReadLine();
sSecondNumber = Console.ReadLine();
iFirstNumber= Convert.ToInt16(sFirstNumber);
iSecondNumber = Convert.ToInt16(sSecondNumber);
Console.WriteLine("Which Mathmatecial Charactor Would You Like To Use? 1=Add 2=Subtract 3=Multiply 4=Divide");
if (sCharactor == "1")
Console.WriteLine =(iAddition);
if (sCharactor == "2")
Console.WriteLine =(iSubtraction);
if (sCharactor == "3")
Console.WriteLine = (iMultiply);
if (sCharactor == "4")
Console.WriteLine = (iDivide);

Console.ReadLine();

this would help you gearing up. try adding more functionalities. :)
class Program
{
static void Main(string[] args)
{
while (true)
{
Console.WriteLine("Please Enter Choice of Operation: ");
Console.WriteLine("Addition[1], Subtraction[2], Multiplication[3], Division[4]");
Console.WriteLine();
int choice;
choice = Convert.ToInt32(Console.ReadLine());
switch (choice)
{
case 0:
return;
case 1:
addition();
break;
case 2:
subtraction();
break;
case 3:
multiplication();
break;
case 4:
division();
break;
default:
break;
}
}

}
private static void addition()
{
double iFirstNumber, iSecondNumber;
Console.WriteLine("Enter 1st Number: ");
iFirstNumber = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Enter 2nd Number: ");
iSecondNumber = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Addition Result: " + iFirstNumber.ToString() + " + " + iSecondNumber.ToString() + " = " + (iFirstNumber + iSecondNumber).ToString() + "\n");
}
private static void subtraction()
{
double iFirstNumber, iSecondNumber;
Console.WriteLine("Enter 1st Number: ");
iFirstNumber = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Enter 2nd Number: ");
iSecondNumber = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Subtraction Result: " + iFirstNumber.ToString() + " - " + iSecondNumber.ToString() + " = " + (iFirstNumber - iSecondNumber).ToString() + "\n");
}
private static void multiplication()
{
double iFirstNumber, iSecondNumber;
Console.WriteLine("Enter 1st Number: ");
iFirstNumber = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Enter 2nd Number: ");
iSecondNumber = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Multiplication Result: " + iFirstNumber.ToString() + " * " + iSecondNumber.ToString() + " = " + (iFirstNumber * iSecondNumber).ToString() + "\n");
}
private static void division()
{
double iFirstNumber, iSecondNumber;
Console.WriteLine("Enter 1st Number: ");
iFirstNumber = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Enter 2nd Number: ");
iSecondNumber = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Division Result: " + iFirstNumber.ToString() + " / " + iSecondNumber.ToString() + " = " + (iFirstNumber / iSecondNumber).ToString() + "\n");
}
}
---------------------
MARK AS ANSWER IF IT HELPS

1 Reply

Know the answer? Post it — somebody with the same question will find it here.

Diptimaya Patra16y ago
this would help you gearing up. try adding more functionalities. :)
class Program
{
static void Main(string[] args)
{
while (true)
{
Console.WriteLine("Please Enter Choice of Operation: ");
Console.WriteLine("Addition[1], Subtraction[2], Multiplication[3], Division[4]");
Console.WriteLine();
int choice;
choice = Convert.ToInt32(Console.ReadLine());
switch (choice)
{
case 0:
return;
case 1:
addition();
break;
case 2:
subtraction();
break;
case 3:
multiplication();
break;
case 4:
division();
break;
default:
break;
}
}

}
private static void addition()
{
double iFirstNumber, iSecondNumber;
Console.WriteLine("Enter 1st Number: ");
iFirstNumber = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Enter 2nd Number: ");
iSecondNumber = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Addition Result: " + iFirstNumber.ToString() + " + " + iSecondNumber.ToString() + " = " + (iFirstNumber + iSecondNumber).ToString() + "\n");
}
private static void subtraction()
{
double iFirstNumber, iSecondNumber;
Console.WriteLine("Enter 1st Number: ");
iFirstNumber = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Enter 2nd Number: ");
iSecondNumber = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Subtraction Result: " + iFirstNumber.ToString() + " - " + iSecondNumber.ToString() + " = " + (iFirstNumber - iSecondNumber).ToString() + "\n");
}
private static void multiplication()
{
double iFirstNumber, iSecondNumber;
Console.WriteLine("Enter 1st Number: ");
iFirstNumber = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Enter 2nd Number: ");
iSecondNumber = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Multiplication Result: " + iFirstNumber.ToString() + " * " + iSecondNumber.ToString() + " = " + (iFirstNumber * iSecondNumber).ToString() + "\n");
}
private static void division()
{
double iFirstNumber, iSecondNumber;
Console.WriteLine("Enter 1st Number: ");
iFirstNumber = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Enter 2nd Number: ");
iSecondNumber = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Division Result: " + iFirstNumber.ToString() + " / " + iSecondNumber.ToString() + " = " + (iFirstNumber / iSecondNumber).ToString() + "\n");
}
}
---------------------
MARK AS ANSWER IF IT HELPS