String Manipulation Question

[PFDandK]

Hello,

First of all I'm really if i posted this here, when there is another topic about this. I can't seem to find it, and I'm really desperate to find the answer, or just a hint on how to do it.

Yesterday we were told to make a Program that will segregate/separate a single string that contains alphanumeric symbols. Then the values will be copied to a specific label.

Ex Output:

Enter a String: 1ILOVEYOU43

Numbers Only: 143
Letters Only: ILOVEYOU

I'm really just a beginner though I know how to manipulate a program once a get a hint on how to do it. We were also told to include the "duration" of the segregation.

Ex:

Enter a String: 1ILOVEYOU43

Numbers Only: 143 3s <----- Duration
Letters Only: ILOVEYOU 14s <----- Duration

I would really appreciate your help guys,I'm new here so I hope you can guide me..

Thank you so much..

P.S.

Im using TURBO C++ (I understand that the codes differ on editors and compilers).

[jsmith]

Well, start with something. We won't do the program for you, but we will help fix compile
errors and runtime bugs.

I have no idea what "duration" is or how it is computed given the above examples.

[PFDandK]

Well that's the problem I dont know where to start with the segregation I've only finished the second instruction which was to reverse a given string.

here is the code:

#include <iostream.h>
#include <string.h>
#include <conio.h>

class String
{
	private:
		char ustr[30];


		char rev_str[30];
	public:
		void SetData(char str[30]) { strcpy(ustr, str);}
		void Reverse_string(void);

};
void String::Reverse_string(void)
{
	cout<<"\n\n\t\t\t";
	for(int i=strlen(ustr)-1; i >=0; i--)
	       {
			rev_str[i-(strlen(ustr)-1)]=ustr[i];
			cout<<rev_str[i-(strlen(ustr)-1)];
	       }
}



main()
{
	 String S;
	char aw[30];

	clrscr();

	cin>>aw;
	S.SetData(aw);
	S.Reverse_string();
	cout<<"\n\n Press any key to cont..";




	getch();


}

I've done some research, and I get results about String find, copy, erase and etc. but I cant seem to integrate it with the codes above, the codes provided in my searches are as follows:

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

int main () 
{
    string  str("C++ is best language");
    int pos1, pos2; // size_t or size_type 
                    // work not correct
    // search for first string "best" inside of str
    // default position is 0
    pos1 = str.find ("best");
    cout << "Word best is found on position " << pos1+1 
         << endl;
    
    // if pattern is not found - return -1
    pos2 = str.find ("best",pos1+1);
    cout << "Word best is found on position " << pos2+1 
         << endl;

    // search for first occurrence of character
    pos1 = str.find('g');
    cout << "First character 'g' found on position " 
         << pos1
    	 << endl;

    // search for first occurrence of string
    string s = "is";
    pos1 = str.find (s);
    cout << "Word 'is' is found on position " << pos1+1 
         << endl;
    
    return 0;
}

>.<

[jsmith]

Walk the string, one character at a time, checking each character to see if it is a number
or a letter.

[PFDandK]

I've had the idea of using the str.find, lets say I'll let it find numbers then if its numbers it will print the numbers which it searched..

But how do I do that.. I mean I know how to use find but how to make the program print the one it found..

[jsmith]

string::find returns the index into the string of the match, or string::npos if it did
not find a match. You can print the Nth character of a string like this:

cout << str[ N ];

[DemienBjarne]

Keep it simple always!!!!!!!
u kow ASCII code 48 up to 57 are numbers!! , I wont do your homework. If working with string type, there's always a c_str() Function, think!!!!! u needa gather two diffrent character set and they got distinct values, make a choise... Trust it it's not that complicated!!!

[DemienBjarne]

I dont understand the 'Duration' factor!....