remove zeros in a double[] array

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How do you remove zeros that are in an array?
For instance if you have array[] numbers = new array[2000]
There are values in the array but some are zero. I would like to remove the zeros and return another array[]

Posted 2-Jan-12 17:31pm

shekarchee

Updated 2-Jan-12 19:00pm

Mehdi Gholam

v2

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Amir Mahfoozi · Answer 1 · 2012-01-02T17:59:00

Solution 2

Here it is :

C#

public double[] RemoveZeros(double[] source)
{
    return source.Where(i => i != 0).ToArray();
}

Hope it helps.

Posted 2-Jan-12 17:59pm

Amir Mahfoozi

Comments

Sergey Alexandrovich Kryukov 3-Jan-12 0:37am

Correct, my 5, but it's good to know that working with array is ineffective if removal is used. It actually creates a new array out of old one. For more effective use System.Collections.Generic should be used.
--SA

Amir Mahfoozi 3-Jan-12 0:44am

Absolutely I agree with you SA, and I don't use arrays since getting familiar with generic lists. :) I hope the OP see these comments.

Un_NaMeD 3-Jan-12 3:32am

That's true.
Using an ArrayList would be much easier...

Tanveer A · Answer 2 · 2012-01-02T17:35:00

Solution 1

VB

dim a as integer=0
dim str as string
while a<array.length>
str=array[a]
if str=0 then 
array.delete(a)
end if
a=a+1
end while</array.length>

Posted 2-Jan-12 17:35pm

Tanveer A

Updated 2-Jan-12 18:59pm

v2

Rajesh Kariyavula · Answer 3 · 2012-01-02T18:13:00

Solution 3

Hi,

Try this without a loop.

C#

int[] a = { 1, 2, 3, 0, 7, 0 };
a = a.Where(T => T != 0).ToArray();

Posted 2-Jan-12 18:13pm

Rajesh Kariyavula

Updated 2-Jan-12 19:00pm

v2

Comments

Sergey Alexandrovich Kryukov 3-Jan-12 0:36am

Don't worry about the loop, it is with the loop of course, which is in the implementation of Where.
--SA