array display in order

Nakhia Sharma

8y1.5kLearn iOS Programming

Dear friends

I have a required to display a array of elements 4,-5,6,8,-2,3,-7,9

like first possitive numbers and then negative numbers like

4,6,8,3,9,-5,-2,-7

3 Replies

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Tapan Patel8y ago
Accepted answer
You can try this code.
Just one more thing, Math.Sign reuturns 0 as well so if you have 0 in your array, make sure to include that at required place.
int[] arr = { 4, -5, 6, 8, -2, 3, -7, 9 };
var res = arr.OrderByDescending(x => Math.Sign(x));
+2
Sourabh Somani8y ago
Hello Nakhia Sharma,

You can do this in a single line here is the code
public int[] FormatArray(int[] arr){
        return arr.Where(x=>x>=0).ToList().Concat(arr.Where(x=>x<0).ToList()).ToArray();
    }
I have sample code of console application for your question
Code:
using System;
using System.Linq;
public class Program
{
    public static void Main()
    {
        int[] arr=new int[]{4,-5,6,8,-2,3,-7,9};
        foreach(var x in new Program().FormatArray(arr))
        {
            Console.WriteLine(x);
        }

    }
    public int[] FormatArray(int[] arr){
        return arr.Where(x=>x>=0).ToList().Concat(arr.Where(x=>x<0).ToList()).ToArray();
    }
}
Code link is here https://dotnetfiddle.net/gSHm2W
+1
Altaf Ansari8y ago
Hello Nakhia Shrama,
Try This..i hope this will help you..
using System.Linq;
private int[] GetSortedArray(int [] Arr)
       {
           List<int> NegArr = Arr.ToList().Where(x => x < 0).ToList().OrderBy(x => x).ToList(); // Negative Number List in Ascending Order
           List<int> AllArr = Arr.ToList().Where(x => x > 0).ToList().OrderBy(x => x).ToList(); // Positive Number List in Ascending Order
           AllArr.AddRange(NegArr);
           return AllArr.ToArray();
       }
-1