Computer Science Canada how to seperate a string into characters? |
Author: | JR [ Mon Feb 05, 2007 8:45 am ] |
Post subject: | how to seperate a string into characters? |
Hi, I have a file which contains some characters data, for example the first line is: 5 3 my question if i read the line as a string, how would i separate both characters? there are spaces in between. like how would i put those 2 numbers into different variables. |
Author: | wtd [ Mon Feb 05, 2007 9:24 am ] |
Post subject: | RE:how to seperate a string into characters? |
Try using the String class' split method. |
Author: | JR [ Mon Feb 05, 2007 2:15 pm ] |
Post subject: | Re: how to seperate a string into characters? |
what is the name of the function that does that? |
Author: | wtd [ Mon Feb 05, 2007 2:18 pm ] |
Post subject: | RE:how to seperate a string into characters? |
Err... for some reason I was thinking this was in the Java Help forum. As for C++, use the std::stringstream class. |
Author: | abcdefghijklmnopqrstuvwxy [ Mon Feb 05, 2007 2:54 pm ] | ||
Post subject: | RE:how to seperate a string into characters? | ||
If everything is seperated by spaces you could use the extraction operator.
What that does is put the first number into x and the second number into y. Asserting that first and second num are seperated by a space. |
Author: | JR [ Mon Feb 05, 2007 3:03 pm ] | ||
Post subject: | Re: RE:how to seperate a string into characters? | ||
abcdefghijklmnopqrstuvwxy @ Mon Feb 05, 2007 2:54 pm wrote: If everything is seperated by spaces you could use the extraction operator.
What that does is put the first number into x and the second number into y. Asserting that first and second num are seperated by a space. some of the data in the file has no spaces, so that would not work properly i guess. |
Author: | deville75 [ Tue Feb 06, 2007 11:10 am ] |
Post subject: | RE:how to seperate a string into characters? |
Why not use a char array? an array of chars already stores each character so you don't need a method. Also you can check each value char[0], char[1], ... for it's value to see if it's a space or not. So instead of reading it into a string read it into a char []. |
Author: | wtd [ Tue Feb 06, 2007 1:14 pm ] |
Post subject: | RE:how to seperate a string into characters? |
Because he's dealing with C++, and has a real string type to work with, as a result. C++'s std::string class can be iterated over in the same manner. |
Author: | abcdefghijklmnopqrstuvwxy [ Tue Feb 06, 2007 3:04 pm ] |
Post subject: | RE:how to seperate a string into characters? |
I was going to mention how senseless it would be to use a char* but I figured since the advantage of std::string is covered so exhaustively in this forum and elsewhere on the net I wouldn't waste my finger muscles. |
Author: | ownageprince [ Fri Feb 09, 2007 7:25 pm ] |
Post subject: | Re: how to seperate a string into characters? |
string word="program"; char ch; for(int i=0;i<word.length();i++) { ch=word[i]; cout<<ch<<endl; } //this stores each character from word into ch...but after the for loop you will only have "m" |
Author: | wtd [ Fri Feb 09, 2007 7:57 pm ] | ||
Post subject: | RE:how to seperate a string into characters? | ||
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