[Zooo]

Alright so I am teaching myself C++ with an eBook ( Teach yourself C++ in one hour a day ) and I am doing a lesson on Variables, I made a basic multiplier, but I get an error with cout. The code is below, please explain what I am doing wrong.. X.x For the record, only the cout:: << FirstNumber << " x " << SecondNumber; is giving me the issue.

#include <iostream>
using namespace std;

int main()
{
	cout << " This program will help you mutliply two numbers together " << endl;

cout << " Enter the first number: ";
int FirstNumber = 0, SecondNumber = 0, Result = 0;
cin >> FirstNumber;

cout << "Enter the second number: ";

cin >> SecondNumber
	//Multiply two numbers, store result in Variable



	//Display Result
cout << FirstNumber << " x " << SecondNumber;
cout << " = " << Result << endl;

[Chris]

#include <iostream>
using namespace std;

int main()
{
	cout << " This program will help you mutliply two numbers together " << endl;
int FirstNumber = 0, SecondNumber = 0, Result = 0;
cout << " Enter the first number: ";

cin >> FirstNumber;

cout << "Enter the second number: ";

cin >> SecondNumber;
	//Multiply two numbers, store result in Variable
Result = FirstNumber*SecondNumber;

	//Display Result
cout << FirstNumber << " x " << SecondNumber << endl;
cout << " = " << Result << endl;

}

Works fine for me. I didn't run it but I threw it in codepad to make sure there was no errors.

[Zooo]

If you try and run it, atleast for me, I get an error with the console-out. I don't know why.. O.o Visual Express 2010 says that the cout is expecting a ';'

[Chris]

Originally Posted by Zooo

If you try and run it, atleast for me, I get an error with the console-out. I don't know why.. O.o Visual Express 2010 says that the cout is expecting a ';'

Because you are missing a semi colon after your second cin.

#include <iostream>
using namespace std;

int main()
{
	cout << " This program will help you mutliply two numbers together " << endl;

cout << " Enter the first number: ";
int FirstNumber = 0, SecondNumber = 0, Result = 0;
cin >> FirstNumber;

cout << "Enter the second number: ";

cin >> SecondNumber;
	//Multiply two numbers, store result in Variable



	//Display Result
cout << FirstNumber << " x " << SecondNumber;
cout << " = " << Result << endl;

[Zooo]

Okay, but when I run it, everything works fine and dandy until I get a run-time error #3 MultiplicationResult is being used without being initialized?

Result=MultiplicationResult in this case

[Experiment5X]

[Chris]

Originally Posted by Zooo

Okay, but when I run it, everything works fine and dandy until I get a run-time error #3 MultiplicationResult is being used without being initialized?

Result=MultiplicationResult in this case

MultiplicationResult isn't declared any where that I see.

You have this note: //Multiply two numbers, store result in Variable


But no code. So no matter what you do result will be equal to 0.

[Zooo]

Originally Posted by Experiment5X

Aha! That did it! Thank you so much. lol. I was stuck on this for a good 35 minutes just seeing what I was missing.

[Zooo]

Awh, but now I have more problems when using the Scope of a Variable.. O.o I may not have worded that correctly

#include <iostream>
using namespace std;

void MultiplyNumbers ()
{
	
cout << " Enter the first number: ";
int FirstNumber = 0, SecondNumber = 0, MultiplicationResult;
cin >> FirstNumber;

cout << "Enter the second number: ";
cin >> SecondNumber;
	
//Multiply two numbers, store result in Variable
MultiplicationResult = FirstNumber * SecondNumber;


	//Display Result
cout <<FirstNumber << " x " <<SecondNumber;
cout << " = " << MultiplicationResult << endl;


}
int Main()
{
	cout << " This program will help you multiply two numbers " << endl;
	//Call the Function that does the work
	MultiplyNumbers();

	// cout << FirstNumber << " X " << SecondNumber;
	// cout << " = " MultiplicationResult <<endl;

	return 0;

}

Im sorry lol, but I did exactly what the book said in the paragraph, and I must be missing something.. " 1 unresolved Externals "

[Chris]

Originally Posted by Zooo

Awh, but now I have more problems when using the Scope of a Variable.. O.o I may not have worded that correctly

#include <iostream>
using namespace std;

void MultiplyNumbers ()
{
	
cout << " Enter the first number: ";
int FirstNumber = 0, SecondNumber = 0, MultiplicationResult;
cin >> FirstNumber;

cout << "Enter the second number: ";
cin >> SecondNumber;
	
//Multiply two numbers, store result in Variable
MultiplicationResult = FirstNumber * SecondNumber;


	//Display Result
cout <<FirstNumber << " x " <<SecondNumber;
cout << " = " << MultiplicationResult << endl;


}
int Main()
{
	cout << " This program will help you multiply two numbers " << endl;
	//Call the Function that does the work
	MultiplyNumbers();

	// cout << FirstNumber << " X " << SecondNumber;
	// cout << " = " MultiplicationResult <<endl;

	return 0;

}

Im sorry lol, but I did exactly what the book said in the paragraph, and I must be missing something.. " 1 unresolved Externals "

Any variables used in blue cannot be used in red. Move the variables out side of them under the using namespace std;

Experiment has some videos id suggest watching on variables.

Or you can read this http://www.learncpp.com/cpp-tutorial...bal-variables/