sorting integers according to their value

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i have 6 integers (a, b, c, d, e ,f) and they have random values. i want to sort them according to their values.
i used arraylist but after sorting it sorts according to 1st digit of integer. ie.. if sorting among (10, 15,8 and 23 )
output is 10,15,23,8
how to get correct output what i m missing, please help me out

Posted 1-Oct-11 9:52am

choudhary.sumit

Updated 1-Oct-11 21:19pm

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Bala Selvanayagam 1-Oct-11 16:22pm

Indiana.Net..Is it possible for to post your code trying to sort the integers so that it will be easier for me to see where the issue is please

Alan N 2-Oct-11 11:04am

The output order 10,15,23,8 must have been obtained by sorting strings instead of integers. If you had posted your code as requested by Bala I think you would have had an answer very quickly.

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Jaypalsinh · Answer 1 · 2011-10-01T10:01:00

Solution 2

use Generic list of integer than try to sort them.

Posted 1-Oct-11 10:01am

Jaypalsinh

Updated 1-Oct-11 10:07am

v2

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Sander Rossel 2-Oct-11 4:12am

My 5. This seems the easiest way to sort Integers. No need to create your own sorting algorithms or box the ints into Objects...

List<int> myList = new List<int>();
myList.AddRange(a, b, c, d, e, f);
myList.Sort();

From the top of my head :)

Simon Bang Terkildsen 3-Oct-11 9:47am

No need to create your own sorting algorithms
Insight is one reason and a very good one at that :)

Sander Rossel 3-Oct-11 10:35am

Insight of what? Microsoft has written some integer sorting algorithm for us already. No need to write your own. Writing your own only means more code to maintain.
Even for sorting custom classes I'd use List.Sort(New MyIComparer). By far the easiest way and possibly faster then anything I'd ever write since I'm no algorithm expert, and I think I'm not the only one :)

Simon Bang Terkildsen 3-Oct-11 10:41am

Insight into how a sorting algorithm works, which might be a good idea if you want to become a software engineer, developer, programmer or what ever titles you might think of.
While I whole heartily agree that you should not write unnecessary code, that kind of thinking when it comes to academic pursuits means you wont ever become even an average programmer.

Sander Rossel 3-Oct-11 10:50am

Learning how algorithms work is probably very useful in some cases. However, when working with .NET a lot has already been done for you and you probably won't need it. And I really don't think my boss (or any boss) would approve of me writing some custom integer sorting algorithm if it is already implemented in .NET and we've got that deadline catching in on us ;)
So great for learning and curiosity, but never ever in production code (not for integers in .NET anyway).

Simon Bang Terkildsen 3-Oct-11 10:59am

You're missing the point. You're thinking in terms of a professional developer (who should by definition already have that kind of insight). I'm talking about someone who are educating themselves to become a developer. You cannot get through any kind of formal education that has something to do with software development without writing your own sorting algorithm sooner or later.

Sander Rossel 3-Oct-11 11:38am

I am a professional developer (I get paid to develop software for over a year now) and never written an algorithm in my life. I also didn't get any IT education so that might explain it. And sure, as soon as I'll need an algorithm I'll dive right in to it and learn, but it has not yet been the case. I can sort any List in .NET and for now that's all I need to know. And actually, since my math skills suck, I'm quite ok with that ;p

Simon Bang Terkildsen · Answer 2 · 2011-10-01T09:55:00

Solution 1

plenty of sorting algorithms here[^], make your pick

Posted 1-Oct-11 9:55am

Simon Bang Terkildsen

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choudhary.sumit 1-Oct-11 15:59pm

i need any c# code to accomplish, i really cant do this by reading definition.

Simon Bang Terkildsen 1-Oct-11 16:04pm

Most if not all of them have their own page with a pseodocode implementation.

I'm not just gonna hand you an implementation, you've shown no effort to resolve your problem, if you want to be able to post a problem and get a complete solution then there are plenty of sites that allow you to post this and pay any developer willing to do the work for you.

hzawary · Answer 3 · 2011-10-01T10:39:00

An example for this:

C#

int sortObj(object obj1, object obj2)
{
    return (int)obj1 == (int)obj2 ? 0 : (int)obj1 > (int)obj2 ? 1 : -1;
}

private void Form1_Load(object sender, EventArgs e)
{
    int a=9, b=2, c=5, d=1;

    object[] obj = new object[4]{a,b,c,d};

    Array.Sort<object>(obj, new Comparison<object>(sortObj));
}

vivek511 · Answer 4 · 2011-10-01T21:22:00

Solution 4

you can try Generic list of integer than you can easly sort them

Posted 1-Oct-11 21:22pm

vivek511

DaveyM69 · Answer 5 · 2011-10-02T04:24:00

Don't use an ArrayList! Always use one of the generic lists instead - normally List<T>.

If it's only integers in the list then use List<int>. you can then call it's Sort method which will use int's built in CompareTo method to sort them as you want.

If ever you need to hold a list of different types (and there isn't another suitable common base type) use List<object>. There is no reason to use ArrayList unless you are using or need to be compatible with .NET 1.0 or 1.1 code which is highly unlikely.

sorting integers according to their value

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