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Oct 16th, 2006

I need help with my homework!

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Hi,

I need help with my homework please, its due tommorow and i prommise to show my efforts in the next days

http://www2.filehost.to/files/2006-1...4316_cplus.jpg

Thanks in advance

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Latifa

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Oct 16th, 2006

Re: I need help with my homework!

Show your effort now, then we can help you with the next step.
http://www.daniweb.com/techtalkforum...cement8-2.html

Salem

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Posting Sage

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Oct 16th, 2006

Re: I need help with my homework!

I know that it means this:

below is a string of 20 chars
[01234567890123456789]

The first twelve are
[012345678901]

The last twelve are
[890123456789]

the middle 4 of the first string are shown marked with () below:
[0123(4567)08901]

the middle for of the last twelve are shown marked with () below:
[8901(2345)6789]

Latifa

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Oct 16th, 2006

Re: I need help with my homework!

Yes, I've read your jpeg.

But what code have you managed to come up with so far?

For example, can you read the string from the user, and just print it back to the user?
Can you add to that printing the length of the string?

Salem

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Re: I need help with my homework!

I got till here,

Quote ...

#include <iostream>
#include <string>

using namespace std;

int main ()
{

string name;
cout<< "Enter name";
cin>> name;

Last edited by Latifa; Oct 16th, 2006 at 5:59 pm.

Latifa

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Re: I need help with my homework!

Maybe this will kick-start you

C++ Syntax (Toggle Plain Text)
#include <iostream>
#include <string>
using namespace std;
int main ( ) {
    string s = "hello world";
    cout << "The length is " << s.length() << endl;
    cout << "The 5th character is " << s[4] << endl;
    return 0;
}
#include <iostream>
#include <string>
using namespace std;
int main ( ) {
    string s = "hello world";
    cout << "The length is " << s.length() << endl;
    cout << "The 5th character is " << s[4] << endl;
    return 0;
}

There are all sorts of different methods for manipulating strings.
http://www.sgi.com/tech/stl/basic_string.html

Salem

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Oct 17th, 2006

Re: I need help with my homework!

There must be a cin

Quote ...

#include <iostream>
#include <string>
using namespace std;
int main ( ) {
string = name;
cin >> name;
cout << "The length is " << s.length() << endl;
cout << "The 5th character is " << s[4] << endl;

return 0;
}

Latifa

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Oct 17th, 2006

Re: I need help with my homework!

to define a string variable,

C++ Syntax (Toggle Plain Text)

 string s;

then read in,

C++ Syntax (Toggle Plain Text)

 cin >> s;

then using the string stl use the necessary functions.

in particular look at, s.length(), s.substr()
the rest is trivial once you know how to use these functions.

Last edited by jdarvwill; Oct 17th, 2006 at 12:06 pm.

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