Help?

Help?

Well since im like 2 days old too c++ and i just learned cin and strings can someone help me i want to know how to make my command prompt answer to a yes or no question heres my source code

Code:

#include <iostream>
#include <string>
using namespace std;

int main ()
{
    string mystr;
    cout << "What's your name? ";
    getline (cin, mystr);
    cout << "Hello " << mystr << ".\n";
    cout << "What's your last name? ";
    getline (cin, mystr);
    cout << "So its " << mystr << " ?\n";
    cout << "Do you like Aimbots? ";
    getline (cin, mystr);
    cout << "Well i havent figured out how to answer to yes or no questions yet im sorry ill get back to you later..\n";
    cout << "Its all about that MPGH.net\n";
    system ("pause");
    return 0;
}

please dont flame my post i am 2 days new to c++ so...

This was not my complete source code i have been learning from C++ Basic Tutorial

Originally Posted by Brinuz

Control Structures

hmmmm thanks ive been learning from there :P

Originally Posted by IamArtificial

hmmmm thanks ive been learning from there :P

good

then thats your next step. good luck

No one is going to flame you for asking a question. Here is an example to answering a question:

Code:

#include <iostream>
#include <string>

using namespace std;

int main()
{
 string input="";
 cout<<"Say yes or no\n";
 cin>>input;
 if (input=="Yes")
 {
	 cout<<"You said Yes\n";
 }
 if (input=="No")
 {
	 cout<<"You said No\n";
 }
 if (input!="No" && input!="Yes")
 {
	 cout<<"You didn't say yes or no";
 }
 system("pause");
 return 0;
}

Warning, you will have to type in exactly "Yes" or "No". You can use functions like "tolower()" to force all the characters to lower case so you can check for non case-sensitive inputs.

But anyways, I hope I could help. This compiled in MSVC++ 2008 Express edition.

~lilneo

Originally Posted by Brinuz

good

then thats your next step. good luck

Thanks it is XD ^.^ heres my finishing thing it was surprisingly easy

Code:

#include <iostream>
#include <string>
using namespace std;

int main ()
{
    string mystr;
    cout << "What's your name? ";
    getline (cin, mystr);
    cout << "Hello " << mystr << ".\n";
    cout << "What's your last name? ";
    getline (cin, mystr);
    cout << "So its " << mystr << " ?\n";
    cout << "Do you like Aimbots? ";
    getline (cin, mystr);
    if (mystr == "no")
    cout << "Well your gay...\n";
    if (mystr == "No"
    cout << "Well your gay...\n";
    if (mystr == "NO")
    cout << "Well your gay...\n";
    if (mystr == "yes")
    cout << "Its all about that MPGH.net\n";
    if (mystr == "Yes")
    cout << "Its all about that MPGH.net\n";
    if (mystr == "YES")
    cout << "Its all about that MPGH.net\n";
    system ("pause");
    return 0;
}

@Lilneo

all i did was the

Code:

if (mystr == "no") cout << "message here\n"

Originally Posted by IamArtificial

Thanks it is XD ^.^ heres my finishing thing it was surprisingly easy

Code:

#include <iostream>
#include <string>
using namespace std;

int main ()
{
    string mystr;
    cout << "What's your name? ";
    getline (cin, mystr);
    cout << "Hello " << mystr << ".\n";
    cout << "What's your last name? ";
    getline (cin, mystr);
    cout << "So its " << mystr << " ?\n";
    cout << "Do you like Aimbots? ";
    getline (cin, mystr);
    if (mystr == "no")
    cout << "Well your gay...\n";
    if (mystr == "No"
    cout << "Well your gay...\n";
    if (mystr == "NO")
    cout << "Well your gay...\n";
    if (mystr == "yes")
    cout << "Its all about that MPGH.net\n";
    if (mystr == "Yes")
    cout << "Its all about that MPGH.net\n";
    if (mystr == "YES")
    cout << "Its all about that MPGH.net\n";
    system ("pause");
    return 0;
}

nice, btw one tip.. instead of having all these if's with same result, you could do:

Code:

if(xxx = "xxx" || xxx2 = "xxx" || xxx3 = "xxx")

|| is the same as "OR", you can also use && which is "AND". But yea, keep practicing

and follow that site tutorial well

edit: btw, search around the web for some exercises, so you can actually practice.

Originally Posted by Brinuz

nice, btw one tip.. instead of having all these if's with same result, you could do:

Code:

if(xxx = "xxx" || xxx2 = "xxx" || xxx3 = "xxx")

|| is the same as "OR", you can also use && which is "AND". But yea, keep practicing

and follow that site tutorial well

edit: btw, search around the web for some exercises, so you can actually practice.

Code:

#include <iostream>
#include <string>
using namespace std;

int main ()
{
    string mystr;
    cout << "What's your name? ";
    getline (cin, mystr);
    cout << "Hello " << mystr << ".\n";
    cout << "What's your last name? ";
    getline (cin, mystr);
    cout << "So its " << mystr << " ?\n";
    cout << "Do you like Aimbots? ";
    getline (cin, mystr);
    if (mystr == "no" || mystr == "No" || mystr == "NO" || mystr == "Hell No")
    cout << "Well then your gay..\n";
    if (mystr == "yes" || mystr == "Yes" || mystr == "YES")
    cout << "MPGH.net is where its at!!\n";
    system ("pause");
    return 0;
}

look good? i think it does XD

Originally Posted by IamArtificial

look good? i think it does XD

way better xP

I don't know if you've learned functions yet, but you can use this to convert strings to lowercase:

Code:

#include <windows.h>
#include <iostream>
using namespace std;

string strToLower(string convertme); //forward declaration so we can put the function behind main

int main()
{
	string a = "TLDFLSDF";
	a = strToLower(a); //convert the string to lowercase
	cout<<a.c_str(); //print the string as char array/c style string
	return 1;
}

string strToLower(string convertme)
{
	for(int i=0;i<(int)strlen(convertme.c_str()); i++)
	{
		convertme[i] = tolower(convertme[i]);
	}
	return convertme;
}

Originally Posted by Hell_Demon

I don't know if you've learned functions yet, but you can use this to convert strings to lowercase:

Code:

#include <windows.h>
#include <iostream>
using namespace std;

string strToLower(string convertme); //forward declaration so we can put the function behind main

int main()
{
	string a = "TLDFLSDF";
	a = strToLower(a); //convert the string to lowercase
	cout<<a.c_str(); //print the string as char array/c style string
	return 1;
}

string strToLower(string convertme)
{
	for(int i=0;i<(int)strlen(convertme.c_str()); i++)
	{
		convertme[i] = tolower(convertme[i]);
	}
	return convertme;
}

Its wierd you posted this i just got to functions last night but i stopped XD
so i am learning functions right now xP

Originally Posted by lilneo

No one is going to flame you for asking a question. Here is an example to answering a question:

Code:

#include <iostream>
#include <string>

using namespace std;

int main()
{
 string input="";
 cout<<"Say yes or no\n";
 cin>>input;
 if (input=="Yes")
 {
	 cout<<"You said Yes\n";
 }
 if (input=="No")
 {
	 cout<<"You said No\n";
 }
 if (input!="No" && input!="Yes")
 {
	 cout<<"You didn't say yes or no";
 }
 system("pause");
 return 0;
}

Or you could use

Code:

if (input!="No" || "no" && input!="Yes" || "yes")

Not sure if this will work properly, but it allows for yes, Yes, no and No questions if it does work.

Originally Posted by VvITylerIvV

Or you could use

Code:

if (input!="No" || "no" && input!="Yes" || "yes")

Not sure if this will work properly, but it allows for yes, Yes, no and No questions if it does work.

No that wont work.

This should:

[php]
if (input != "no" || input != "No" && input != "Yes" || input != "yes")
[/php]

anyway i always hate this kind of ifs, but yea..

Originally Posted by lilneo

No one is going to flame you for asking a question. Here is an example to answering a question:

Code:

#include <iostream>
#include <string>

using namespace std;

int main()
{
 string input="";
 cout<<"Say yes or no\n";
 cin>>input;
 if (input=="Yes")
 {
	 cout<<"You said Yes\n";
 }
 if (input=="No")
 {
	 cout<<"You said No\n";
 }
 if (input!="No" && input!="Yes")
 {
	 cout<<"You didn't say yes or no";
 }
 system("pause");
 return 0;
}

[php]string input="";[/php]
You dont need to initialize it
[php]string input;[/php]
is just fine

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