I keep getting this question on beginner study sheets...

[z_learning_tester]

But I can't seem to find the answer.
The question is how do you reverse the words in a string?
Or how do you reverse the numbers listed in a string?

The example is usually something like:
Turn this string "1,2,3,4,.. ."
Into "...4,3,2,1 "

This one seems hard enough let alone trying to turn a string of
space-seperated words around(is that even possible? a trick question
perhaps?)

Again, any help here much appreciated.
Thanks!

Jeff

[John Young]

Hi,

Is this the kind of thing you are after?

using System;

namespace Reverse
{
/// <summary>
/// Summary description for Class1.
/// </summary>
class Class1
{
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main(string[] args)
{
//
// TODO: Add code to start application here
//
string str = "1,2,3,4";
string result = "";
for (int i = str.Length - 1; i>=0; i--)
{
result += str.Substring(i , 1);
}
Console.WriteLi ne("Start string: " + str);
Console.WriteLi ne("Result string: " + result);
Console.ReadLin e();
}
}
}
Hope that helps... Although there may be easier ways to do it...

John
"z_learning_tes ter" <so*****@micros oft.com> wrote in message
news:ej2Bc.7137 3$eu.3683@attbi _s02...

But I can't seem to find the answer.
The question is how do you reverse the words in a string?
Or how do you reverse the numbers listed in a string?

The example is usually something like:
Turn this string "1,2,3,4,.. ."
Into "...4,3,2,1 "

This one seems hard enough let alone trying to turn a string of
space-seperated words around(is that even possible? a trick question
perhaps?)

Again, any help here much appreciated.
Thanks!

Jeff

[Tom Dacon]

One approach:

Use String.Split() with a comma as the delimiter, to break up the numeric
substrings into an array. Then iterate over the array from the end to the
beginning, to reassemble the substrings into the order you want. For
example:
HTH,
Tom Dacon
Dacon Software Consulting
"z_learning_tes ter" <so*****@micros oft.com> wrote in message
news:ej2Bc.7137 3$eu.3683@attbi _s02...

But I can't seem to find the answer.
The question is how do you reverse the words in a string?
Or how do you reverse the numbers listed in a string?

The example is usually something like:
Turn this string "1,2,3,4,.. ."
Into "...4,3,2,1 "

This one seems hard enough let alone trying to turn a string of
space-seperated words around(is that even possible? a trick question
perhaps?)

Again, any help here much appreciated.
Thanks!

Jeff

[Tom Dacon]

One approach:

Use String.Split() with a comma as the delimiter, to break up the numeric
substrings into an array. Then iterate over the array from the end to the
beginning, to reassemble the substrings into the order you want. For
example:

string input = "1,2,3,4";
string output = "";
string[] substrings = input.Split(new char[] { ',' });
for ( int i = substrings.Leng th - 1; i >= 0; i-- )
{
if ( output != "" )
output += ",";
output += substrings[i];
}

Extra points if you use a StringBuilder instance to assemble the output.

HTH,
Tom Dacon
Dacon Software Consulting
"z_learning_tes ter" <so*****@micros oft.com> wrote in message
news:ej2Bc.7137 3$eu.3683@attbi _s02...

But I can't seem to find the answer.
The question is how do you reverse the words in a string?
Or how do you reverse the numbers listed in a string?

The example is usually something like:
Turn this string "1,2,3,4,.. ."
Into "...4,3,2,1 "

This one seems hard enough let alone trying to turn a string of
space-seperated words around(is that even possible? a trick question
perhaps?)

Again, any help here much appreciated.
Thanks!

Jeff

[Shakir Hussain]

Try this

//convert to character array
char [] myArray = myString.ToChar Array()
//reverse the arrary
Array.Reverse(m yArray);
//store in new string
string newString = new string(myArray) ;

Shak.
"z_learning_tes ter" <so*****@micros oft.com> wrote in message
news:ej2Bc.7137 3$eu.3683@attbi _s02...

But I can't seem to find the answer.
The question is how do you reverse the words in a string?
Or how do you reverse the numbers listed in a string?

The example is usually something like:
Turn this string "1,2,3,4,.. ."
Into "...4,3,2,1 "

This one seems hard enough let alone trying to turn a string of
space-seperated words around(is that even possible? a trick question
perhaps?)

Again, any help here much appreciated.
Thanks!

Jeff

[clintonG]

Isn't the simple code always the most elegant? :-)

I mean who would have ever thought of checking the
documentation to determine which members of the
Array class are supported?

What will they think of next.

--
<%= Clinton Gallagher
A/E/C Consulting, Web Design, e-Commerce Software Development
Wauwatosa, Milwaukee County, Wisconsin USA
NET csgallagher@ REMOVETHISTEXT metromilwaukee. com
URL http://www.metromilwaukee.com/clintongallagher/

"Shakir Hussain" <sh**@fakedomai n.com> wrote in message
news:ud******** ******@tk2msftn gp13.phx.gbl...

Try this

//convert to character array
char [] myArray = myString.ToChar Array()
//reverse the arrary
Array.Reverse(m yArray);
//store in new string
string newString = new string(myArray) ;

Shak.
"z_learning_tes ter" <so*****@micros oft.com> wrote in message
news:ej2Bc.7137 3$eu.3683@attbi _s02...

But I can't seem to find the answer.
The question is how do you reverse the words in a string?
Or how do you reverse the numbers listed in a string?

The example is usually something like:
Turn this string "1,2,3,4,.. ."
Into "...4,3,2,1 "

This one seems hard enough let alone trying to turn a string of
space-seperated words around(is that even possible? a trick question
perhaps?)

Again, any help here much appreciated.
Thanks!

Jeff

[Jon Skeet [C# MVP]]

clintonG <csgallagher@RE MOVETHISTEXT> wrote:

Isn't the simple code always the most elegant? :-)

I mean who would have ever thought of checking the
documentation to determine which members of the
Array class are supported?

What will they think of next.

On the other hand, that will reverse 12,34 to 43,21 which I suspect
isn't what's wanted.

--
Jon Skeet - <sk***@pobox.co m>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too

[clintonG]

The Reverse method would provide acceptable results on the string
of characters that was given but I would concur, in most any other
form of delineated characters a split would be required.

But that doesn't change the circumstances for we neophytes as I have
found that a quick trip to my local copy of the MSDN Library or
Google before posting to newsgroups has proven to be insightful and
other neophytes should be encouraged to do the same even if it means
beating them over the head with a mouse. My own lumps and bruises
are almost gone :-)

--
<%= Clinton Gallagher
A/E/C Consulting, Web Design, e-Commerce Software Development
Wauwatosa, Milwaukee County, Wisconsin USA
NET csgallagher@ REMOVETHISTEXT metromilwaukee. com
URL http://www.metromilwaukee.com/clintongallagher/

"Jon Skeet [C# MVP]" <sk***@pobox.co m> wrote in message
news:MP******** *************** *@msnews.micros oft.com...

clintonG <csgallagher@RE MOVETHISTEXT> wrote:

Isn't the simple code always the most elegant? :-)

I mean who would have ever thought of checking the
documentation to determine which members of the
Array class are supported?

What will they think of next.

On the other hand, that will reverse 12,34 to 43,21 which I suspect
isn't what's wanted.

--
Jon Skeet - <sk***@pobox.co m>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too

[z_learning_tester]

Thanks for the help.
Honestly I would rather go here than MSDN which one can muddle through for
weeks looking for a simple answer. Sure if you need an extremely specific
answer and have 10 keywords it will find an example(great!) but for basic
questions its just lame and gives *too much* info IMO.

Actually I can honestly say that so far I have never gotten the answer I've
needed on anything whatsoever from MSDN. I always get lost in the ocean of
data. But then I'm a beginner. I'm sure there's tricks :-)
Thanks again,

Jeff
"clintonG" <csgallagher@RE ************@me tromilwaukee.co m> wrote in message
news:ug******** ******@tk2msftn gp13.phx.gbl...

The Reverse method would provide acceptable results on the string
of characters that was given but I would concur, in most any other
form of delineated characters a split would be required.

But that doesn't change the circumstances for we neophytes as I have
found that a quick trip to my local copy of the MSDN Library or
Google before posting to newsgroups has proven to be insightful and
other neophytes should be encouraged to do the same even if it means
beating them over the head with a mouse. My own lumps and bruises
are almost gone :-)

--
<%= Clinton Gallagher
A/E/C Consulting, Web Design, e-Commerce Software Development
Wauwatosa, Milwaukee County, Wisconsin USA
NET csgallagher@ REMOVETHISTEXT metromilwaukee. com
URL http://www.metromilwaukee.com/clintongallagher/

"Jon Skeet [C# MVP]" <sk***@pobox.co m> wrote in message
news:MP******** *************** *@msnews.micros oft.com...

clintonG <csgallagher@RE MOVETHISTEXT> wrote:

Isn't the simple code always the most elegant? :-)

I mean who would have ever thought of checking the
documentation to determine which members of the
Array class are supported?

What will they think of next.

On the other hand, that will reverse 12,34 to 43,21 which I suspect
isn't what's wanted.

--
Jon Skeet - <sk***@pobox.co m>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too

[z_learning_tester]

Thanks all for the replies.
This variety of feedback is invaluable to a beginner like me :-)
"z_learning_tes ter" <so*****@micros oft.com> wrote in message
news:ej2Bc.7137 3$eu.3683@attbi _s02...

But I can't seem to find the answer.
The question is how do you reverse the words in a string?
Or how do you reverse the numbers listed in a string?

The example is usually something like:
Turn this string "1,2,3,4,.. ."
Into "...4,3,2,1 "

This one seems hard enough let alone trying to turn a string of
space-seperated words around(is that even possible? a trick question
perhaps?)

Again, any help here much appreciated.
Thanks!

Jeff