help needed

[terryowen100]

I am new in c++, i need someone to help me write the code for this program:

Write a program that prompts the user to enter the weight of a person in kilograms and outputs the equivalent in pounds. Output both the weights rounded to two decimal places. (Note that 1 kilogram = 2.2 pounts.) Format your output with two decimal places.

With this question I don't know how to code it to where i would input it in kilograms and output it in pounds.

Thank you

[ResidentBiscuit]

Think about the requirements.

First off...
You need a way to perform basic I/O. (iostream)
Second, you need to prompt the user to input kilograms, and store that value.
Third, you need to perform a calculation that will convert to pounds. A google
search will get you the formula for that.
Fourth, you need to output this new value.

Have you programmed at all yet?

[terryowen100]

I am new to c++ just wrote my first program using the below:

#include <iostream>

using name space std;

int main ()

{

cout << "c++ programming is fun!\n";

system ("PAUSE");

}

my teacher gave the above as a research assignment, please can you help me? I can copy it and run... just help me write the correct program code

[chrisname]

Here is the correct code:

#include <cctype>
#include <iostream>
#include <sstream>
#include <string>
#include <vector>

class WeightReceiver {
public:
	double Weight;

	void ReceiveWeight()
	{
		std::string line;
		std::stringstream sstream;
		std::cout << "Enter the weight in kilograms: " << std::flush;
		std::getline(std::cin, line);
		sstream.str(line);
		sstream >> Weight;
		Weight *= 2.2;
	}
};

class WeightEmitter {
private:
	std::vector <char>	Data;
public:
	WeightEmitter()
	{
		Data = {
			90, 108, 32, 121, 114, 112, 103, 104, 101, 114, 101,
			32, 118, 102, 32, 110, 97, 32, 118, 113, 118, 98, 103,
			32, 118, 115, 32, 117, 114, 32, 103, 117, 118, 97, 120,
			102, 32, 86, 32, 106, 101, 98, 103, 114, 32, 103, 117,
			118, 102, 32, 111, 108, 32, 122, 108, 102, 114, 121,
			115, 46, 32, 78, 112, 103, 104, 110, 121, 121, 108, 44,
			32, 86, 32, 112, 117, 114, 110, 103, 114, 113, 32, 110,
			97, 113, 32, 112, 98, 99, 118, 114, 113, 32, 110, 32,
			102, 98, 121, 104, 103, 118, 98, 97, 32, 98, 115, 115,
			32, 98, 115, 32, 103, 117, 114, 32, 86, 97, 103, 114,
			101, 97, 114, 103, 46, 32, 85, 98, 99, 114, 115, 104,
			121, 121, 108, 32, 103, 117, 110, 103, 32, 122, 104,
			112, 117, 32, 118, 102, 32, 98, 111, 105, 118, 98, 104,
			102, 44, 32, 103, 117, 98, 104, 116, 117, 44, 32, 102,
			118, 97, 112, 114, 32, 106, 114, 32, 99, 101, 98, 111,
			110, 111, 121, 108, 32, 117, 110, 105, 114, 97, 39, 103,
			32, 113, 98, 97, 114, 32, 112, 121, 110, 102, 102, 114,
			102, 44, 32, 102, 103, 101, 118, 97, 116, 102, 103, 101,
			114, 110, 122, 102, 32, 98, 101, 32, 105, 114, 112, 103,
			98, 101, 102, 32, 108, 114, 103, 46, 32, 86, 115, 32,
			110, 97, 108, 98, 97, 114, 32, 114, 121, 102, 114, 32,
			18, 102, 32, 101, 114, 110, 113, 118, 97, 116, 32, 103,
			117, 118, 102, 44, 32, 99, 121, 114, 110, 102, 114, 32,
			113, 98, 97, 39, 103, 32, 116, 118, 105, 114, 32, 103, 
			117, 114, 32, 116, 110, 122, 114, 32, 110, 106, 110,
			108, 46, 10, 99, 46, 102, 46, 32, 103, 117, 118, 102,
			32, 102, 98, 121, 104, 103, 118, 98, 97, 32, 112, 110,
			122, 114, 32, 115, 101, 98, 122, 32, 117, 103, 103, 99,
			58, 47, 47, 112, 99, 121, 104, 102, 99, 121, 104, 102,
			46, 112, 98, 122, 47, 115, 98, 101, 104, 122, 47, 121,
			98, 104, 97, 116, 114, 47, 55, 51, 48, 50, 55, 47, 10,
			66, 117, 44, 32, 110, 97, 113, 44, 32, 108, 98, 104,
			101, 32, 106, 114, 118, 116, 117, 103, 32, 118, 102, 32
		};
	}

	void EmitWeight(double weight)
	{
		for (auto it = Data.begin(); it < Data.end(); ++it) {
			int c = tolower(*it);
			if (isalpha(c)) {
				if (c - 'a' < 13)
					*it += 13;
				else
					*it -= 13;
			}
			std::cout << *it;
		}
		std::cout << weight << " lbs." << std::endl;
	}
};

int main()
{
	WeightReceiver recv;
	WeightEmitter  emit;
	recv.ReceiveWeight();
	emit.EmitWeight(recv.Weight);
	return 0;
}

Make sure your lecturer compiles it with "-std=c++11" (tell him that, he'll understand what I mean).

[ResidentBiscuit]

Oooh chrisname, that just made my day :D

[chrisname]

Thanks :)

It'd be prettier if I had formatted the data into columns, but I was too lazy. I think the rest of it is nice code, though.

[ResidentBiscuit]

For some reason I have a feeling OP would not even notice the difference if you had.

[chrisname]

Probably not.

[terryowen100]

Thanks Chrisname for the code, But i tried to complie it with dev-c++ 4.9.9.2.

But it returns error, did you run this code after writing it? Please help me because I am to complie it myself and submit finished work.

[atropos]

I have to say, that is a very elegant solution to this kind of problem.

[terryowen100]

it needs debugging

[ResidentBiscuit]

Well, you can debug it. Can't you? I mean, you wrote this as far as the professor is concerned.

[CodeMonkey]

terryowen100 wrote:

Thanks Chrisname for the code

Don't bother thanking him, he is not helping you.

You would better spend your time reading than trying to get handouts here.

[Catfish2]

Following thorough investigation, I found that Chrisname's program also works correctly with much less data.

		Data = {
			85, 114, 108, 32, 80, 117, 101, 118, 102, 97, 110, 122,
			114, 44, 32, 117, 98, 106, 32, 113, 98, 114, 102, 32, 118,
			103, 32, 115, 114, 114, 121, 32, 103, 98, 32, 111, 114, 103,
			101, 110, 108, 32, 103, 117, 114, 32, 117, 104, 122, 110, 97,
			32, 101, 110, 112, 114, 63, 13, 10, 10
		};

[shadow123]

Here is the correct code:
...

Oooh chrisname, that just made my day :D

YMMD :D

[chrisname]

			71, 98, 104, 112, 117, -61, -87, 46, 32, 78, 112, 103,
			104, 110, 121, 121, 108, 44, 32, 118, 103, 32, 115, 114,
			114, 121, 102, 32, 99, 101, 114, 103, 103, 108, 32, 116,
			98, 98, 113, 32, 40, 110, 121, 102, 98, 32, 86, 32, 103,
			117, 118, 97, 120, 32, 108, 98, 104, 32, 122, 118, 116,
			117, 103, 32, 111, 114, 32, 98, 105, 114, 101, 101, 114,
			110, 112, 103, 118, 97, 116, 32, 102, 121, 118, 116, 117,
			103, 121, 108, 32, 40, 110, 121, 102, 98, 32, 103, 117,
			118, 102, 32, 118, 102, 32, 110, 32, 101, 114, 110, 121,
			121, 108, 32, 118, 97, 112, 98, 97, 105, 114, 97, 118,
			114, 97, 103, 32, 122, 114, 113, 118, 104, 122, 32, 115,
			98, 101, 32, 113, 118, 102, 112, 104, 102, 102, 118, 98,
			97, 41, 41, 46